Environmental Progress & Sustainable Energy最新文献_第10页

Pilot-scale production of the low-temperature NH3-SCR catalyst with high industrial application prospects from natural zeolite and manganese oxide 以天然沸石和氧化锰为原料，中试生产具有工业应用前景的低温NH3-SCR催化剂

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-12-09 DOI: 10.1002/ep.14539

Wenfeng Huang, Tongyuan Liu, Dan Jin, Lin Yang, Wenju Jiang

{"title":"Pilot-scale production of the low-temperature NH3-SCR catalyst with high industrial application prospects from natural zeolite and manganese oxide","authors":"Wenfeng Huang, Tongyuan Liu, Dan Jin, Lin Yang, Wenju Jiang","doi":"10.1002/ep.14539","DOIUrl":"https://doi.org/10.1002/ep.14539","url":null,"abstract":"In this study, a low-temperature NH3 selective catalytic reduction (NH3-SCR) catalyst with great industrial applicability was produced on a pilot scale using natural zeolite as the carrier and natural manganese oxide as the active component. The effects of activation temperature and nitric acid dosage on the mechanical strength and NH3-SCR performance were discussed. The results demonstrated that the catalyst CMZ-10-600, prepared at a calcination temperature of 600°C with a 10.0 wt % nitric acid dosage, exhibited the best NH3-SCR performance while meeting the mechanical strength requirements for industrial applications. The NO conversion ranged from 93.8% to 100.0%, and the N2 selectivity varied between 78.0% and 100% at a gas hourly space velocity (GHSV) of 5000 h−1 within the reaction temperature range of 150–250°C. The prepared catalysts were characterized using the scanning electron microscopy, x-ray powder diffraction, BET, NH3-TPD, and x-ray photoelectron spectroscopy (XPS), which elucidated the effects of the preparation method on the catalyst strength, physicochemical properties, and the NH3-SCR performance of the catalysts. The research results proved that the catalysts produced by this process exhibit good mechanical strength and catalytic properties, coupled with low raw material costs and a simple preparation technique, highlighting a promising prospect for industrial application.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of biomass-based cook stoves in Ethiopia: A transition strategy from conventional to modern cook stoves 埃塞俄比亚生物质炉灶的评估：从传统炉灶到现代炉灶的过渡战略

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-12-06 DOI: 10.1002/ep.14531

Dawit Tessema Ebissa, Eshetu Getahun

{"title":"Evaluation of biomass-based cook stoves in Ethiopia: A transition strategy from conventional to modern cook stoves","authors":"Dawit Tessema Ebissa, Eshetu Getahun","doi":"10.1002/ep.14531","DOIUrl":"https://doi.org/10.1002/ep.14531","url":null,"abstract":"Performance improvement of cookstoves has a vital role in reducing indoor air pollution and deforestation. In this study, biomass-based cook stoves onsite data survey and experimental approaches were carried out to evaluate the performance of different cook stoves. Based on this feasibility research, it was shown that firewood accounted for 75% of the fuel type usage. The results of several studies and experimental performance testing indicated that the efficiency of cook stoves for 3-stone, lakech, mirt, gonze, tikikil, and pyrolysis stoves was 10%, 25%, 48%, 50%, and 76%, respectively. Merely 87 out of the total 1986 families with kebeles had improved cookstoves; the remaining households used 3-stone stove types. According to the study, the pyrolysis stove had the lowest fuel consumption rate and cooking time, while the 3-stone stove had the greatest fuel consumption rate and cooking time. The improvement stove reduced emissions, and the highest emission reduction stove was the gasifier stove, with a magnitude of 1.229 tons CO2/HH/Year. Among cooking stoves, gasifier stoves have a great advantage in producing energy and biochar.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on combustion characteristics under methanol gasoline emission optimization based on orthogonal matrix analysis 基于正交矩阵分析的甲醇汽油排放优化燃烧特性研究

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-12-05 DOI: 10.1002/ep.14536

Danfeng Du, Zewei Hao, Xiurong Guo, Wenjun Jiang, Shaochi Yang

{"title":"Study on combustion characteristics under methanol gasoline emission optimization based on orthogonal matrix analysis","authors":"Danfeng Du, Zewei Hao, Xiurong Guo, Wenjun Jiang, Shaochi Yang","doi":"10.1002/ep.14536","DOIUrl":"https://doi.org/10.1002/ep.14536","url":null,"abstract":"This study utilizes the orthogonal matrix analysis method to identify the lower levels of both conventional and unconventional emissions in engines powered by methanol gasoline, with the aim of optimizing gas emissions. Through the utilization of ANOVA, we were able to determine the key elements that impact the emissions of methanol gasoline from engines. Additionally, we validated the correctness of the experiment by employing the signal-to-noise ratio. The analysis focused on the combustion parameters of an engine that burns methanol fuel while maintaining low overall emissions. The accuracy of the numerical simulation was confirmed through the utilization of GT-power for numerical simulation and subsequent experimental validation. The findings suggest that when the engine operates at a load of 1200 rpm and 6 N m while consuming M85, there is a reduction in both conventional and unconventional emissions. M85 has a maximum cylinder pressure that is 18.7% more than pure gasoline. Conversely, pure gasoline demonstrates a power output that is 24.7% higher than M85. Additionally, M85 has a BSFCe that is 22.71% higher than gasoline. The addition of a methanol-gasoline mixture can effectively reduce the engine's exhaust temperature.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental, economic, and life cycle carbon footprint assessment of low-cost adsorbents for siloxane removal from landfill gas 从填埋气中去除硅氧烷的低成本吸附剂的实验、经济和生命周期碳足迹评估

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-12-03 DOI: 10.1002/ep.14534

Rarosue J. Amaraibi, Bryce Reynolds, Babu Joseph, John N. Kuhn

{"title":"Experimental, economic, and life cycle carbon footprint assessment of low-cost adsorbents for siloxane removal from landfill gas","authors":"Rarosue J. Amaraibi, Bryce Reynolds, Babu Joseph, John N. Kuhn","doi":"10.1002/ep.14534","DOIUrl":"https://doi.org/10.1002/ep.14534","url":null,"abstract":"Siloxane impurities in landfill gas (LFG) pose a significant challenge for downstream processing equipment used in energy recovery. This study investigated the adsorption capacity, cost, and environmental impact of five low-cost adsorbent materials: biochar, clinoptilolite, hydrochar, diatomaceous-earth, and crushed glass. Gravimetric analysis was used to determine the adsorption capacity of these materials for octamethylcyclotetrasiloxane (D4). The results were then used to conduct a technoeconomic analysis (TEA) and life cycle assessment (LCA), comparing the selected adsorbents with activated carbon (AC), a commonly used adsorbent for siloxane removal. The TEA revealed that the cost of LFG purification with clinoptilolite, biochar, and AC was $0.035, $0.034, and $0.033/m3, respectively, for the base case studied. The cradle-to-gate LCA showed that clinoptilolite had significantly lower carbon emissions compared with the other adsorbents, both per kg of D4 captured and per kg of adsorbent produced. The potential fate of siloxanes after adsorption was discussed, emphasizing the importance of proper treatment and disposal of spent adsorbents. Surface modification techniques were recommended to enhance the adsorption capacity and regeneration of clinoptilolite, potentially reducing cost and carbon emissions in LFG purification. These findings highlight the potential of low-cost adsorbents for sustainable LFG purification.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced prediction of Cs removal by CST from Hanford tank waste with K accountability 基于K问责制的CST对汉福德废液Cs去除的增强预测

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-12-03 DOI: 10.1002/ep.14535

Amy Westesen, Emily Campbell, Reid Peterson

{"title":"Enhanced prediction of Cs removal by CST from Hanford tank waste with K accountability","authors":"Amy Westesen, Emily Campbell, Reid Peterson","doi":"10.1002/ep.14535","DOIUrl":"https://doi.org/10.1002/ep.14535","url":null,"abstract":"The treatment of Hanford tank waste is one of the most challenging environmental cleanup activities to date. To expedite the processing of liquid waste stored in underground tanks in Washington State it is necessary to remove the significant dose contributor, 137Cs. Crystalline silicotitanate ion exchanger is currently used to remove 137Cs from the aqueous phase of Hanford tank wastes in preparation for vitrification at the Waste Treatment and Immobilization Plant (WTP). Improving the understanding of potassium impacts on ion exchange behavior of Cs will help in the operation of a critical component of one of the most complex treatment processes in the world today. Optimization of this process can result in significant cost savings and less waste production. Toward this effort, a series of batch contact tests varied in potassium concentration were conducted to look at the impact of potassium concentration on Cs distribution. Experimental distribution ratios (Kd) were compared to the distribution ratios predicted using the ZAM model. A significant underprediction of Cs capacity in the presence of potassium was seen with the existing model. A revision of the equilibrium constants was determined and provided a statistically better fit for determining the Cs Kd values in tank waste matrices.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ep.14535","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Forecasting carbon emissions peak in Chinese household consumption and selecting low-carbon development strategies: A study based on the extended SPIRPAT model 中国居民消费碳排放峰值预测与低碳发展战略选择——基于扩展SPIRPAT模型的研究

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-12-02 DOI: 10.1002/ep.14537

Chuang Li, Xiaoman Wang, Liping Wang

{"title":"Forecasting carbon emissions peak in Chinese household consumption and selecting low-carbon development strategies: A study based on the extended SPIRPAT model","authors":"Chuang Li, Xiaoman Wang, Liping Wang","doi":"10.1002/ep.14537","DOIUrl":"https://doi.org/10.1002/ep.14537","url":null,"abstract":"Residential carbon emissions have emerged as a primary driver of future carbon emissions in China. Investigating the influential factors affecting demand-side carbon emissions and elucidating future pathways for regional carbon reduction in consumption can provide a scientific basis for regional carbon peak and carbon-neutral action plans. This study incorporated the development of digital technology into the STIRPAT model. The technical components of the STIRPAT model were expanded upon to better understand the factors influencing the household consumption sector and the carbon emission reduction effects of these various factors. The results indicated that: (i) per capita residential carbon emissions in China exhibit a slow fluctuating rise followed by accelerated growth, with the sequence of emissions being highest in the eastern region, followed by the northeastern region, western region, and finally the central region; (ii) population size, shared prosperity, urbanization development, and digitalization collectively influence residential carbon emissions in different regions, with population size and consumption structure playing the most significant promoting and inhibiting roles, respectively; (iii) societal development scenarios and low-carbon development scenarios demonstrate a significant advantage in achieving the timely realization of China's overall residential carbon reduction plan. In most provinces, peak emissions are projected to occur around 2035 under various scenarios, necessitating substantial efforts for provinces to meet the 2030 carbon peak target.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the efficiency of hydrokinetic Savonius turbine with guiding walls 带导流壁的萨沃纽斯水轮机效率的提高

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-11-30 DOI: 10.1002/ep.14532

Ahmed Ayadi, Nour Rabeh, Haytham Nasraoui, Mabrouk Mosbahi, Zied Driss

{"title":"Enhancing the efficiency of hydrokinetic Savonius turbine with guiding walls","authors":"Ahmed Ayadi, Nour Rabeh, Haytham Nasraoui, Mabrouk Mosbahi, Zied Driss","doi":"10.1002/ep.14532","DOIUrl":"https://doi.org/10.1002/ep.14532","url":null,"abstract":"Hydropower offers a means of generating electricity through the conversion of water flow's mechanical energy using rotors. The helical Savonius rotor is recognized as one of the most commonly employed rotor types. An approach employed to boost power output involves the utilization of guiding walls, positioned upstream of the Savonius rotor. In this specific study, an investigation is presented into a helical Savonius rotor equipped with an innovative deflector design composed of guiding walls in the form of NACA-profiled plates. Ansys Fluent is used to simulate the water flow around the helical Savonius turbine and the guiding walls. The geometric parameters of this design of guiding walls are adjusted to identify the most efficient configuration. When examining all considered configurations, an improvement is noted in the maximum power coefficient, with a significant increase compared with a conventional configuration. In fact, the power coefficient could be improved by 44% using optimal dimensions of the guiding walls. The inclusion of the proposed guiding walls in conjunction with the optimized geometric parameters emerges as a strategy to enhance the rotor's power coefficient.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A simulation based water quality parameter control of aquaponic system employing model predictive control strategy incorporation with optimization technique 采用模型预测控制策略结合优化技术对水培系统的水质参数进行了仿真控制

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-11-28 DOI: 10.1002/ep.14530

Pragnaleena Debroy, Priyanka Majumder, Lalu Seban

{"title":"A simulation based water quality parameter control of aquaponic system employing model predictive control strategy incorporation with optimization technique","authors":"Pragnaleena Debroy, Priyanka Majumder, Lalu Seban","doi":"10.1002/ep.14530","DOIUrl":"https://doi.org/10.1002/ep.14530","url":null,"abstract":"Aquaponics is an integration of aquaculture and hydroponics systems, utilizing recirculating water to connect these two processes. Maintaining optimal water quality parameters is critical for the life of fish and plants and crucial for the optimal production in the aquaponics. However, this is difficult due to the complex dynamics in each system and the recirculations. Atmospheric temperature significantly impacts fish and plant growth by affecting water quality parameters. To address this, a mathematical model for key parameters, such as temperature and dissolved oxygen (DO), is introduced, along with a model predictive controller (MPC) that is designed to maintain these parameters at optimal levels. The ideal operating points for temperature and DO are identified by optimizing the aquaponics dynamics. The MPC's performance is compared to that of a traditional proportional-integral (PI) controller, utilizing two performance indices: relative absolute deviation (RAD) and mean relative deviation (MRD). The MPC demonstrates a reduction in RAD values for both FT and NFT water parameters by 40%–60%, and MRD values by 8%–43%. These results show that the MPC effectively mitigates disturbances and addresses model mismatches, outperforming the PI controller. Implementing the proposed strategies in aquaponic systems enhances overall performance, boosts food production rates, maximizes profit, and reduces labour.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Annual energy, exergy, and efficiency analyses for conical solar still combined with N number of evacuated collectors 年能源，火用和效率分析圆锥太阳能仍然与N个疏散集热器相结合

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-11-28 DOI: 10.1002/ep.14527

Abhishek Kumar, Rajesh Kumar

{"title":"Annual energy, exergy, and efficiency analyses for conical solar still combined with N number of evacuated collectors","authors":"Abhishek Kumar, Rajesh Kumar","doi":"10.1002/ep.14527","DOIUrl":"https://doi.org/10.1002/ep.14527","url":null,"abstract":"The utilization of solar energy technology for obtaining clean water for use of society in remote locations will help in fulfilling the sustainable development goals of the United Nations. Also, promotion of solar energy for the use of society will subside dependency on the fossil fuel or conventional energy. This article deals with the annual energy, exergy, and efficiency analyses of N identical ETCs incorporated conical solar still (NETC-CSS). The thermal model for the proposed system has been developed based on equating input and output heats for different elements. The developed fundamental equations are fed to the MATLAB computational code. The four weather situations in each month of year for New Delhi climate is considered for the annual analysis. The annual energy, exergy, thermal efficiency, and exergy efficiency for NETC-CSS are computed to be 1796.61, 170.19 kWh, 38.79%, and 3.94% under optimized values of mass flow rate and number of collectors. Results are compared with earlier published research. Concludingly, the increase in annual energy, exergy, thermal efficiency, and exergy efficiency for NETC-CSS is 68.03% than modified solar still, 74.14% than conventional conical solar still, 61.12% than modified solar still, and 72.59% than solar still with parabolic trough collector.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ionic liquid pretreatment of sweet sorghum bagasse to improve fermentable sugars and platform chemicals obtained from subcritical water hydrolysis 离子液体预处理甜高粱甘蔗渣改善亚临界水水解所得可发酵糖和平台化学物质

IF 2.1 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2024-11-27 DOI: 10.1002/ep.14526

Carolina A. Bragato, Crisleine P. Draszewski, Dian Celante, Michel Brondani, Clarissa P. Frizzo, Fernanda de Castilhos, Ederson R. Abaide, Flávio D. Mayer

{"title":"Ionic liquid pretreatment of sweet sorghum bagasse to improve fermentable sugars and platform chemicals obtained from subcritical water hydrolysis","authors":"Carolina A. Bragato, Crisleine P. Draszewski, Dian Celante, Michel Brondani, Clarissa P. Frizzo, Fernanda de Castilhos, Ederson R. Abaide, Flávio D. Mayer","doi":"10.1002/ep.14526","DOIUrl":"https://doi.org/10.1002/ep.14526","url":null,"abstract":"Sweet sorghum bagasse (SSB) is a promising feedstock for cellulosic ethanol production because of its composition and productivity. The use of SSB pretreated with 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) before subcritical water hydrolysis (SWH) aiming the production of fermentable sugars and platform chemicals was investigated. Modifications in the composition of SSB at different conditions (100°C and 120°C; 2, 4, and 6 h) were evaluated by the thermogravimetric analysis. Sequentially, pretreated SSB was submitted to subcritical water hydrolysis, whose conditions were 220°C and 260°C, and solvent/feed ratios of 80 and 100 g water/g sample (R-80 and R-100) were considered. Maximum enrichment in hemicellulose content and minimum cellulose content was reached in 2 h for pretreatment at 100°C. SSB pretreated with [Bmim]Cl presented enrichment in hemicellulose content from 37.95 to 90.07%, and a 76.9% reduction in lignin content. Therefore, pretreated SSB from this condition was submitted to SWH, resulting in 19.18 g of fermentable sugars per 100 g of sample at 220°C and R-100. The yield of fermentable sugars using SSB pretreated with [Bmim]Cl increased 2.05 times compared with unpretreated under the same condition of SWH (220°C/R-100/10 min). The higher platform chemicals production from pretreated SSB was 15.25 g per 100 g of sample at 220°C and R-80, lower when compared with untreated SSB at 220°C and R-100. Optimizing the solvent/feed ratio is crucial for balancing fermentable sugar and platform chemical production via SWH. [Bmim]Cl pretreatment and ratio optimization enhance product yields significantly.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0