Environmental Progress & Sustainable Energy最新文献

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Determining the exergy and energy efficiency of an organic Rankine cycle using fuzzy logic method 利用模糊逻辑法确定有机朗肯循环的放能和能效
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-06-09 DOI: 10.1002/ep.14443
Ahmet Elbir, Mehmet Erhan Şahin
{"title":"Determining the exergy and energy efficiency of an organic Rankine cycle using fuzzy logic method","authors":"Ahmet Elbir,&nbsp;Mehmet Erhan Şahin","doi":"10.1002/ep.14443","DOIUrl":"10.1002/ep.14443","url":null,"abstract":"<p>The Organic Rankine Cycle (ORC) serves as a pivotal technology for energy conversion, harnessing high-temperature organic liquids sourced from heat reservoirs to propel turbines and generate electricity. This process not only facilitates the conversion of heat into mechanical energy but also significantly mitigates environmental impacts. ORC stands out as the preferred technology for enhancing energy efficiency and leveraging low-temperature resources optimally. With the advent of artificial intelligence, particularly fuzzy logic, these systems have witnessed integration, providing a robust solution to address uncertainties. Unlike traditional logic, which offers binary outcomes, fuzzy logic offers a more adaptable approach by accommodating uncertainty, thus enabling modeling of complex real-world situations. In this study, utilizing the fuzzy logic method, we estimated the energy and exergy efficiency of the ORC, resulting in an impressive 90% estimation accuracy.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141367438","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
Catalytic pyrolysis of torrefied biomass with molecular sieve catalysts to produce hydrocarbon rich biocrude 利用分子筛催化剂催化热解焦化生物质以生产富含碳氢化合物的生物原油
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-06-09 DOI: 10.1002/ep.14446
Ranjita Singh, Sivasankar Kakku, Khushee Shah, Xiaolei Zhang, Abhishek Sharma, Nandana Chakinala, Anand G. Chakinala
{"title":"Catalytic pyrolysis of torrefied biomass with molecular sieve catalysts to produce hydrocarbon rich biocrude","authors":"Ranjita Singh,&nbsp;Sivasankar Kakku,&nbsp;Khushee Shah,&nbsp;Xiaolei Zhang,&nbsp;Abhishek Sharma,&nbsp;Nandana Chakinala,&nbsp;Anand G. Chakinala","doi":"10.1002/ep.14446","DOIUrl":"10.1002/ep.14446","url":null,"abstract":"<p>The downstream processing of biocrudes obtained from direct biomass pyrolysis poses significant challenges due to stability issues, necessitating costly upgrading for further coprocessing with refinery feeds. This study examines the impact of torrefaction pretreatment on pyrolysis product distribution and biocrude composition using sawdust (SD) and groundnut shell (GS) feeds. Torrefaction was conducted at varying temperatures (200, 250 and 300°C) for 30 min under different reactor conditions. Increasing the severity of torrefaction resulted in decreased biocrude yields with reduced water content and gas formation, particularly evident with GS. A torrefaction temperature of 250°C and 30 min of pretreatment yielded higher phenolics and hydrocarbons. This increase in phenolics can be attributed to lignin enrichment during torrefaction, which, in the presence of a catalyst, undergoes deoxygenation leading to hydrocarbon formation. The influence of feed particle size, whether in powder or pellet form, on biocrude yield and composition was found to be minimal. Catalytic pyrolysis of SD using molecular sieve catalysts yielded the highest hydrocarbon (42%) and aromatic content (44%) at catalyst to biomass ratios of 1:1 and 2:3. The combination of torrefaction and pyrolysis was shown to enhance the quality of biocrude by increasing its hydrocarbon content, but at the expense of lower liquid yields. Experimental observations were supported by statistical analysis tools such as principal component analysis, which assessed pyrolysis product yields and composition.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141366638","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
Co-pyrolysis of cypress sawdust and green algae over Ni/ZrO2 catalyst: Syngas yield and carbon emission 在 Ni/ZrO2 催化剂上协同热解柏木锯屑和绿藻:合成气产量和碳排放
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-06-09 DOI: 10.1002/ep.14441
Ziliang Wan, Wei Sun, Longjin Tian, Guozhi Fan, Cheng Pan, Qunpeng Cheng
{"title":"Co-pyrolysis of cypress sawdust and green algae over Ni/ZrO2 catalyst: Syngas yield and carbon emission","authors":"Ziliang Wan,&nbsp;Wei Sun,&nbsp;Longjin Tian,&nbsp;Guozhi Fan,&nbsp;Cheng Pan,&nbsp;Qunpeng Cheng","doi":"10.1002/ep.14441","DOIUrl":"10.1002/ep.14441","url":null,"abstract":"<p>In order to promote syngas yield and reduce carbon emission, Ni loaded ZrO<sub>2</sub> (Ni/ZrO<sub>2</sub>) catalysts were prepared for the co-pyrolysis of cypress sawdust and green algae in a two stage fixed bed reactor. The syngas yield, syngas component, and carbon emission were investigated. The results showed that Ni/ZrO<sub>2</sub> catalyst could obviously increase the combustible gas component in syngas. H<sub>2</sub> content was increased from 7.5% (single component) and 8.12% (co-pyrolysis) to 16.56% (catalytic pyrolysis). CO content was also increased from 19.62% (single component) and 19.46% (co-pyrolysis) to 25.94% (catalytic pyrolysis). However the catalyst had a little effect on the syngas yield compared with single component pyrolysis and co-pyrolysis. The pyrolysis temperature could make great influence on the carbon emission. The carbon emission reduction was increased from 33.32 to 234.25 g CO<sub>2</sub> and from 105.94 to 369.23 g CO<sub>2</sub>, respectively for green algae and cypress sawdust.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141366938","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
Unlocking the potential of low concentration biodiesel blended with green synthesized novel carbon black nanoparticles from Ricinus communis outer shell: An experimental study under different compression ratios and EGR concentrations 挖掘低浓度生物柴油与从蓖麻外壳中提取的绿色合成新型纳米炭黑颗粒混合的潜力:不同压缩比和 EGR 浓度下的实验研究
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-06-09 DOI: 10.1002/ep.14447
M. Ananda Murugan, Nataraj Ganesan
{"title":"Unlocking the potential of low concentration biodiesel blended with green synthesized novel carbon black nanoparticles from Ricinus communis outer shell: An experimental study under different compression ratios and EGR concentrations","authors":"M. Ananda Murugan,&nbsp;Nataraj Ganesan","doi":"10.1002/ep.14447","DOIUrl":"10.1002/ep.14447","url":null,"abstract":"<p>The outer prickly shells of the <i>Ricinus communis</i> (castor plant) have intrigued researchers interested in the synthesis of carbon black (CB) nanoparticles because of their excellent biocompatibility, low toxicity, and widespread availability. Both chemical and physical synthesis methods, such as pyrolysis and ball milling, are employed to obtain the fine-sized CB nanoparticles. The ball milling process is done for 5 h to reduce the size of the biochar from the pyrolysis process. The as-synthesized CB nanoparticles are characterized using Fourier transform infrared spectroscopy, x-ray diffraction, and field emission scanning electron microscopy analysis. The energy dispersive spectrum also confirmed that the nanoparticles are highly composed of carbon and oxygen. CB nanoparticles made from green materials are added to a low-concentrated biodiesel blend of waste fried edible oil at a rate of 100 ppm. The experiment was performed in a single-cylinder diesel engine under varying compression ratios (CRs) (16:1–18:1), loads (0–16 kg), and exhaust gas recirculation (EGR) rates (0%, 15%, and 25%). The results revealed that the existence of carbon in nanoparticles increased the mean gas temperature, and the mass fraction burned was also slightly higher than diesel. Raising both CR (16:1–17:1 and 16:1–18:1) and EGR (25%) boosted the cylinder pressure of CBB30 (1.844% and 10.391%, respectively). In contrast, it lowered the net heat release rate (7.88% and 14.56%, respectively). Similar to this, smoke emissions decreased by 6.38% and 15.02%, respectively, at the same CR and EGR parameters. On the other hand, brake thermal efficiency slumped by 7.22% and 10.13% concurrently.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141367954","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
ZIF-8 decorated FeMo nanoparticles: H2 Production from the catalytic hydrolysis of ammonia-borane ZIF-8 修饰的铁钼纳米粒子:催化水解氨硼烷产生 H2
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-06-09 DOI: 10.1002/ep.14439
Can Yılmaz, Hüseyin Ali Yıldırım, Tuba Top, Mehmet Yurderi, Mehmet Zahmakıran
{"title":"ZIF-8 decorated FeMo nanoparticles: H2 Production from the catalytic hydrolysis of ammonia-borane","authors":"Can Yılmaz,&nbsp;Hüseyin Ali Yıldırım,&nbsp;Tuba Top,&nbsp;Mehmet Yurderi,&nbsp;Mehmet Zahmakıran","doi":"10.1002/ep.14439","DOIUrl":"10.1002/ep.14439","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <p>Ammonia-Borane (AB) is considered a promising solid hydrogen storage material due to its high hydrogen content (19.6 wt%) and its use for safe hydrogen transport. The most effective way to produce H<sub>2</sub> from AB is to perform the hydrolysis reaction in the presence of a suitable catalyst. In this study, Fe<sub>0.2</sub>Mo<sub>0.8</sub>/ZIF-8 nanocatalyst was synthesized in two steps: <i>(i)</i> synthesis by following the colloidal synthesis technique by thermal decomposition of Mo(CO)<sub>6</sub> and Fe(acac)<sub>3</sub> in the presence of OM and ODE at high temperatures, and <i>(ii)</i> the resulting colloidal Fe<sub>0.2</sub>Mo<sub>0.8</sub> NPs were decorated into ZIF-8. The as-prepared Fe<sub>0.2</sub>Mo<sub>0.8</sub>/ZIF-8 catalyst was identified using advanced characterization techniques such as ICP-OES, P-XRD, SEM, SEM–EDX, TEM, TEM-EDX, XPS, and BET. The catalytic activities of the Fe<sub>0.2</sub>Mo<sub>0.8</sub>/ZIF-8 catalyst in the hydrolysis of AB were investigated in different parameters (temperature, catalyst [Fe<sub>0.2</sub>Mo<sub>0.8</sub>] and substrate [H<sub>3</sub>NBH<sub>3</sub>] concentration, and recyclability). The results show that high crystallinity Fe<sub>0.2</sub>Mo<sub>0.8</sub> NPs with a uniform 1.31 ± 0.13 nm distribution were formed on the ZIF-8 surface. Fe<sub>0.2</sub>Mo<sub>0.8</sub>/ZIF-8 catalyst provides a maximum H<sub>2</sub> generation rate of 184.2 mLH<sub>2</sub> (g catalyst)<sup>−1</sup> (min)<sup>−1</sup> at 343 K. This uniquely cost-effective, active and durable Fe<sub>0.2</sub>Mo<sub>0.8</sub>/ZIF-8 catalyst has strong potential for H<sub>2</sub>-based fuel cell (PEM: Proton Exchange Membrane) applications where AB is a suitable H<sub>2</sub> carrier.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Highlights</h3>\u0000 \u0000 <div>\u0000 <ul>\u0000 \u0000 <li>FeMo NPs were synthesized by a colloidal synthesis method and decorated into ZIF-8.</li>\u0000 \u0000 <li>FeMo/ZIF-8 catalyst is an active catalyst in the hydrolysis of AB.</li>\u0000 \u0000 <li>FeMo/ZIF-8 catalyst showed an initial TOF value of 449.85 mol(H<sub>2</sub>)·molFe<sub>0.2</sub>Mo<sub>0.8</sub><sup>−1</sup>·h<sup>−1</sup> in the AB hydrolysis at 338 K.</li>\u0000 </ul>\u0000 </div>\u0000 </section>\u0000 </div>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141366458","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
Performance and hydrodynamic study of a new multi-stage solar photoreactor with immobilized ZnO for synthetic wastewater treatment 用于合成废水处理的新型多级固定氧化锌太阳能光反应器的性能和流体力学研究
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-06-09 DOI: 10.1002/ep.14444
Belgassim Boutra, Aicha Sebti, Sarah Mahidine, Mohamed Trari
{"title":"Performance and hydrodynamic study of a new multi-stage solar photoreactor with immobilized ZnO for synthetic wastewater treatment","authors":"Belgassim Boutra,&nbsp;Aicha Sebti,&nbsp;Sarah Mahidine,&nbsp;Mohamed Trari","doi":"10.1002/ep.14444","DOIUrl":"10.1002/ep.14444","url":null,"abstract":"<p>This study aims to design a new multi-stage photoreactor with immobilized ZnO and assess its performance in reducing textile wastewater toxicity using solar energy. The electric conductivity measurement is retained as a detection method to obtain the residence time distribution (RTD) function. The RTD is then used to characterize the hydrodynamic behavior of the photoreactor and to evaluate its deviation from the distribution curves of ideal reactors. Solar experiments are conducted to demonstrate the performance of this multistage reactor towards the degradation of a textile azo dye namely Solophenyl Red 3BL (SR 3BL). The influence of the flow rate and the SR 3BL initial concentration (C<sub>O</sub>) are considered. The variation of the flow rate slightly influences the SR 3BL photodegradation efficiency and it is inversely proportional to its concentration. The study of the reuse of the immobilized catalyst shows that the degradation efficiency of 98% is reached even after multiple photocatalytic cycles. The figure of merit collector area per order was in the range of 35 to 110 <span></span><math>\u0000 <mrow>\u0000 <msup>\u0000 <mi>m</mi>\u0000 <mn>2</mn>\u0000 </msup>\u0000 <mo>/</mo>\u0000 <msup>\u0000 <mi>m</mi>\u0000 <mn>3</mn>\u0000 </msup>\u0000 <mtext>order</mtext>\u0000 </mrow></math>. This result provides useful information for scaling up and estimating energy efficiency of the reactor.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141367197","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
Application of response surface methodology to optimize chromium (VI) removal from aqueous solution using pre-treated sawdust 应用响应面方法优化使用预处理锯屑去除水溶液中的铬(VI)的效果
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-06-05 DOI: 10.1002/ep.14434
Samin Sirusbakht, Leila Vafajoo, Gordon McKay, Prakash Parthasarathy
{"title":"Application of response surface methodology to optimize chromium (VI) removal from aqueous solution using pre-treated sawdust","authors":"Samin Sirusbakht,&nbsp;Leila Vafajoo,&nbsp;Gordon McKay,&nbsp;Prakash Parthasarathy","doi":"10.1002/ep.14434","DOIUrl":"https://doi.org/10.1002/ep.14434","url":null,"abstract":"<p>Increased chromium usage in industrial applications as chromium III and chromium VI, include metal plating, steel alloys, leather processing, medical applications, and chromium dyeing operations, has resulted in water pollution by Cr (VI) ions, which being toxic and carcinogenic has developed into significant environmental and health problems. The purpose of this research is to remove Cr (VI) ions from synthetic wastewater utilising modified sawdust as an inexpensive adsorbent. Two modified sawdust samples were produced, one using sodium hydroxide and one using sulfuric acid. The experimentation, based on several batch systems, has been undertaken at 25–65°C with 0.5–1.5 g/L sawdust dosage. These conditions were applied to remove Cr (VI) ions at concentrations of 1–6 ppm at pH values from 3 to 10. The results have shown that adsorption onto sawdust followed an intraparticle diffusion mechanism with various rate parameters from 0.65 to 5.24 mg g<sup>−1</sup> min, for treated and untreated sawdust. The distribution coefficient <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <msub>\u0000 <mi>k</mi>\u0000 <mi>c</mi>\u0000 </msub>\u0000 </mfenced>\u0000 </mrow></math>, enthalpy <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <mrow>\u0000 <mi>Δ</mi>\u0000 <mi>H</mi>\u0000 </mrow>\u0000 </mfenced>\u0000 </mrow></math>, thermodynamic standard free energy <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <mrow>\u0000 <mi>Δ</mi>\u0000 <mi>G</mi>\u0000 </mrow>\u0000 </mfenced>\u0000 </mrow></math>, and entropy <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <mrow>\u0000 <mi>Δ</mi>\u0000 <mi>S</mi>\u0000 </mrow>\u0000 </mfenced>\u0000 </mrow></math> were determined from a number of temperature studies. Kinetic studies showed that the pseudo-second order model gave the optimum correlation to the experimental results. The Freundlich and Langmuir isotherms were applied to analyse the experimental equilibrium results. The optimised conditions for the adsorption process were obtained using the D-optimal design method, and the maximum removal percentage of 100%, was determined at pH = 3, <i>T</i> = 25°C, adsorbent dosage = 1.5 g/L, and an initial Cr (VI) concentration = 5.72 ppm.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142273048","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
Hydrothermal liquefaction of microalga with and without seawater: Effects of reaction temperature on yield and hydrocarbon species distribution in biocrude 有海水和无海水的微藻水热液化:反应温度对生物原油产量和碳氢化合物种类分布的影响
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-06-05 DOI: 10.1002/ep.14440
B. E. Eboibi, O. Eboibi, O. L. Okan, E. C. Udochukwu, P. E. Uku, S. E. Agarry
{"title":"Hydrothermal liquefaction of microalga with and without seawater: Effects of reaction temperature on yield and hydrocarbon species distribution in biocrude","authors":"B. E. Eboibi,&nbsp;O. Eboibi,&nbsp;O. L. Okan,&nbsp;E. C. Udochukwu,&nbsp;P. E. Uku,&nbsp;S. E. Agarry","doi":"10.1002/ep.14440","DOIUrl":"10.1002/ep.14440","url":null,"abstract":"<p>A halophytic microalga <i>Tetraselmis</i> sp. biomass diluted with deionized water and seawater was converted to biocrude with the hydrothermal liquefaction (HTL) process in a batch reactor at 310, 330, 350, and 370°C, 15 min with <span></span><math>\u0000 <mrow>\u0000 <mo>≈</mo>\u0000 <mn>20</mn>\u0000 </mrow></math> %w/w solids. The biocrude yield, carbon, and energy recovery in biocrude and hydrocarbon species distribution from deionized water base HTL (DW HTL) and seawater base HTL (SW HTL) were evaluated. The results revealed that irrespective of reaction medium, the yield in biocrude increased with an increase in temperature, reaching a maximum of 50–56 wt% at 350°C, characterized by a higher heating value of up to 35.6 MJ/kg. The carbon and energy recovery at 350°C were 85% and 89% respectively, for SW HTL, while the DW HTL stream was 10% and 12% lower. Also, the GC MS analysis of biocrude obtained from both streams contains a complex mixture of compounds such as hydrocarbons, phenolics, and large amounts of nitrogenated and oxygenated compounds. The metallic constituents in biocrudes derived from both steams showed no substantial variations. The study showed a marginal increase in biocrude yield and its HHV with a reduction in oxygen and nitrogen contents from the SW HTL stream, suggesting the potential of seawater as a reaction medium.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141384790","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 efficient drying process of industrial silicon powder 工业硅粉高效干燥工艺研究
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-05-28 DOI: 10.1002/ep.14420
Hang Li, Lei Xu, Jiayu He, Xuan Li, Zhaohui Han, Junyu Lu, Sivasankar Koppala
{"title":"Study on efficient drying process of industrial silicon powder","authors":"Hang Li,&nbsp;Lei Xu,&nbsp;Jiayu He,&nbsp;Xuan Li,&nbsp;Zhaohui Han,&nbsp;Junyu Lu,&nbsp;Sivasankar Koppala","doi":"10.1002/ep.14420","DOIUrl":"10.1002/ep.14420","url":null,"abstract":"<p>The drying procedure is an important consideration for the silicon powder processing. Herein, a comparative investigation of the drying efficiency, drying performance, and energy consumption of silicon powder after separation and purification of monocrystal silicon cutting slurry by using the hot air, far-infrared and microwave drying treatments. The results show that microwave drying of 30 g silicon powder takes only 12 min, which is much shorter than hot air drying of 200 min and far infrared drying of 40 min. The water evaporation energy consumption of microwave drying reached 73.5 g/kW·h, which was 3.3 times than that of far infrared drying and 16.5 times than that of hot air drying. For 1 kg of silicon powder, the power consumption of microwave drying was 8 kW·h, while the far-infrared drying was 26.7 kW·h, and the hot air drying was 133.4 kW·h, respectively. Therefore, effects of microwave power, drying temperature and drying time on the dehydration rate of silicon powder were investigated and optimized by response surface method, demonstrating that the microwave drying dehydration rate of 30 g silicon powder could reach 97.65%, and the power consumption could be reduced to 6.7 kW·h/kg under the conditions of microwave power of 1000 W, drying temperature of 89°C and drying time of 12 min. The present study shows that microwave drying of silicon powder is an energy-saving and efficient process with good industrial application prospects.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141194174","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
Effect of ten different physical parameters on solar still productivity: Theoretical modeling 十种不同物理参数对太阳能蒸发器生产率的影响:理论建模
IF 2.1 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2024-05-20 DOI: 10.1002/ep.14416
Adil A. M. Omara, Omer Elfarouk E. Mohamed, Abubaker A. M. Mohammedali, Mustafa Ahmed Khogley Ahmed
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