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IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/S2588-9133(23)00050-9

引用次数: 0

IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/j.crcon.2023.05.001

引用次数: 0

Corrigendum to “Test and performance optimization of nozzle inclination angle and swirl combustor in a low-tar biomass gasifier: a biomass power generation system perspective” [Carbon Resour. Convers. (2022) 139–149] “低焦油生物质气化炉中喷嘴倾角和涡流燃烧器的测试和性能优化:生物质发电系统的视角”[碳资源]的勘误表。Convers。(2022) 139 - 149年)

IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/j.crcon.2023.02.006

Md Mashiur Rahman

引用次数: 0

Comparative study of microwave-assisted versus conventional heated reactions of biomass conversion into levulinic acid over hierarchical Mn3O4/ZSM-5 zeolite catalysts 在Mn3O4/ZSM-5沸石分级催化剂上微波辅助与常规加热生物质转化为乙酰丙酸的比较研究

IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/j.crcon.2023.02.005

Mazizah R.A. Helmi , Dyah Utami C. Rahayu , Arnia P. Pratama , Irena Khatrin , Anita N. Ramadhani , Yuni K. Krisnandi

{"title":"Comparative study of microwave-assisted versus conventional heated reactions of biomass conversion into levulinic acid over hierarchical Mn3O4/ZSM-5 zeolite catalysts","authors":"Mazizah R.A. Helmi , Dyah Utami C. Rahayu , Arnia P. Pratama , Irena Khatrin , Anita N. Ramadhani , Yuni K. Krisnandi","doi":"10.1016/j.crcon.2023.02.005","DOIUrl":"https://doi.org/10.1016/j.crcon.2023.02.005","url":null,"abstract":"<div>Conversion of delignified cellulose from rice husk biomass, and model compounds of cellobiose and glucose to levulinic acid (LA) over hierarchical Mn3O4/ZSM-5 catalyst was carried out using a household microwave method, and then compared to the established conventional thermos-reaction method. The hierarchical ZSM-5 was prepared using a double template method, aiming for micro and mesoporous systems developed in the structure. The as-prepared ZSM-5 were modified with Mn3O4 through incipient wetness impregnation with Mn2+ solution followed by calcination at 550 °C. The catalysts were characterized using various techniques such as powder XRD, SEM, BET, AAS, and FT-IR which indicated the hierarchical structure of MFI zeolite (Si/Al of 30–34) with Mn loading of 2.14 wt%. The conversion products were analyzed using HPLC, 1H NMR, and 13C NMR instruments. The microwave-assisted reaction using 600 W for 180 s using delignified cellulose, cellobiose, and glucose gave conversion of 37.27%, 46.35%, and 54.29%, respectively which is close to the conversion given by the conventional reaction carried out at 130 °C for 4 h (36.75%, 55.62%, and 60.9%, respectively). Interestingly, the LA yield from the microwave-assisted reaction (4.33%, 6.12%, and 9.57%) is higher than the yield from the conventional reaction, which only produced 5.2%, 4.88%, and 6.93% respectively. The microwave-assisted method is also shown to give less by-products compared to the thermochemical reaction. Therefore, it could be considered an alternative method for converting cellulose to LA.</div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"6 3","pages":"Pages 245-252"},"PeriodicalIF":6.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49704203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Polypropylene pyrolysis and steam reforming over Fe-based catalyst supported on activated carbon for the production of hydrogen-rich syngas 活性炭负载铁基催化剂上聚丙烯热解及蒸汽重整制富氢合成气研究

IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/j.crcon.2023.02.004

Shuxiao Wang , Yibo Sun , Rui Shan , Jing Gu , Taoli Huhe , Xiang Ling , Haoran Yuan , Yong Chen

{"title":"Polypropylene pyrolysis and steam reforming over Fe-based catalyst supported on activated carbon for the production of hydrogen-rich syngas","authors":"Shuxiao Wang , Yibo Sun , Rui Shan , Jing Gu , Taoli Huhe , Xiang Ling , Haoran Yuan , Yong Chen","doi":"10.1016/j.crcon.2023.02.004","DOIUrl":"10.1016/j.crcon.2023.02.004","url":null,"abstract":"<div>The purpose of this study is to explore a method for the high-yield production of hydrogen by pyrolysis and steam reforming of polymer plastics. The developed Fe-based catalyst supported on activated carbon was applied to reactions with polypropylene for hydrogen production. The effects of iron loading (%) in the catalyst, the total catalyst amount, and the water content in the reaction atmosphere on the performance of hydrogen and gas production were investigated. Under the optimal conditions, the hydrogen yield without water added reached 38.73 mmol/gPP, and this yield was significantly improved by adding water into the reaction atmosphere. By optimizing the amount of water added, the hydrogen yield reached 112.71 mmol/gPP. The surface morphology and structural components of the fresh and used catalysts were characterized, and the morphology and quantity of carbon deposition on the catalyst were analysed. The catalytic stability of the 15Fe/AC catalyst was determined by repeating the test 10 times under the optimal reaction conditions. As the reaction time increased, the selectivity of the catalyst for hydrogen decreased and that for hydrocarbons increased. Moreover, the experimental method used in this study had excellent hydrogen production capacity. Thus, this study provided a novel method for the high-efficiency production of hydrogen by pyrolysis and steam reforming of polymer plastics.</div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"6 3","pages":"Pages 173-182"},"PeriodicalIF":6.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41474505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 5

Performance degradation mechanism of lithium compounds ceramic fuel cell with GDC as electrolyte 以GDC为电解质的锂化合物陶瓷燃料电池性能退化机理

IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/j.crcon.2023.03.004

Kai Wei , Rui Zhang , Gang Chen , Zhuo Chen , Ruixin Dai , Xiaohong Lv , Shujiang Geng

{"title":"Performance degradation mechanism of lithium compounds ceramic fuel cell with GDC as electrolyte","authors":"Kai Wei , Rui Zhang , Gang Chen , Zhuo Chen , Ruixin Dai , Xiaohong Lv , Shujiang Geng","doi":"10.1016/j.crcon.2023.03.004","DOIUrl":"10.1016/j.crcon.2023.03.004","url":null,"abstract":"<div>The performance degradation mechanism of ceramic fuel cell with NCAL (Ni0.8Co0.15Al0.05LiO2) as symmetrical electrode and GDC as electrolyte in H2 is investigated. It is found that under the condition of 550 °C and constant current density of 0.2 A·cm−2, the output voltage of the cell is about 1.005 V in the initial 10 h and remains relatively stable. After 10 h, the voltage of the cell began to decrease gradually, and by 50 h, the voltage had decreased to 0.522 V. The results testing electrochemical performance of the cell and characterizing the cell materials before and after test using SEM, TOF-SIMS and FTIR indicate that the distribution of Li2O/LiOH/Li2CO3 compounds generated from NCAL anode in the cell plays a vital role in significantly improving the ionic conductivity of electrolyte and gas tightness of the cell. The dynamic migration of molten salt destroyed the continuity of molten salt in the cell, which in turn adversely impacted the ionic conductivity of electrolyte, gas tightness of the cell, and electrochemical reactions on both sides of the cathode and anode. These finally lead to the degradation of the cell performance.</div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"6 3","pages":"Pages 238-244"},"PeriodicalIF":6.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44833949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1

Increased utilization and mass activity of PtRu on reduced graphene oxide by heat treatment of its aerogel followed by composite with nanomaterials 通过对还原氧化石墨烯气凝胶进行热处理，然后与纳米材料复合，提高了PtRu对还原氧化石墨烯的利用率和质量活性

IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/j.crcon.2023.02.007

Kenta Dejima , Hirokazu Ishitobi , He Gao , Mai Saito , Nobuyoshi Nakagawa

{"title":"Increased utilization and mass activity of PtRu on reduced graphene oxide by heat treatment of its aerogel followed by composite with nanomaterials","authors":"Kenta Dejima , Hirokazu Ishitobi , He Gao , Mai Saito , Nobuyoshi Nakagawa","doi":"10.1016/j.crcon.2023.02.007","DOIUrl":"10.1016/j.crcon.2023.02.007","url":null,"abstract":"<div>The method to increase PtRu utilization and its catalytic activity of PtRu nanoparticles supported on reduced graphene oxide (RGO) by avoiding its restacking was proposed with the aim of developing an active catalyst for a direct methanol fuel cell. The heat treatment at 200 °C of the GO aerogel (GOA) prepared by freeze drying of GO ice was introduced to weaken the attractive force of the hydrogen bonding between the GO sheets followed by the composite with the nanoparticles, i.e., ketjenblack (KB), TiO2 and Ti4O7, at different weight ratios. The catalyst supported on the heat-treated GOA (RGOA), PtRu/RGOA, improved the PtRu utilization to some extent and also increased the ECSA and mass activity compared to that of PtRu/RGO. RGOA had fewer oxygen functional groups, especially the epoxy groups. Due to the treatment and composite, the PtRu utilization was increased from 66.5% for PtRu/RGO to 128.6 % for PtRu/RGOA + Ti4O7 (4:1) and the mass activity was improved from 50.7 A/g-PtRu for PtRu/RGO to 130.5 A/g-PtRu for PtRu/RGOA + Ti4O7 (1:1). The Ti4O7 nanoparticles showed the best catalytic performance for the composite suggesting that the strong interaction between Ti4O7 and the Pt nanoparticles was effective due to its high electronic conductivity.</div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"6 3","pages":"Pages 205-214"},"PeriodicalIF":6.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44079273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Reactivity and performance of steam gasification during biomass batch feeding 生物质分批加料过程中蒸汽气化的反应性和性能

IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/j.crcon.2023.03.001

Yuna Ma, Zefeng Ge, Mingxun Zeng, Zhenting Zha, Yujie Tao, Huiyan Zhang

{"title":"Reactivity and performance of steam gasification during biomass batch feeding","authors":"Yuna Ma, Zefeng Ge, Mingxun Zeng, Zhenting Zha, Yujie Tao, Huiyan Zhang","doi":"10.1016/j.crcon.2023.03.001","DOIUrl":"10.1016/j.crcon.2023.03.001","url":null,"abstract":"<div>The steam gasification characteristics of poplar sawdust were investigated in a piston fed fixed-bed gasifier, reflecting the batch feeding process of fixed-bed gasifiers in industrial applications. The effects of operating conditions, including steam supply, the flow rate of inert gas, gasification temperature, and feeding rate, on gasification reactivity and performance were investigated online. The major gas product during pyrolysis was CO, followed by H2, CH4, and CO2, and the gasification was greatly facilitated by the injection of steam to generate H2. The gasification reactivity and performance were improved with increased steam supply and temperature. The maximum production rate of H2 by char gasification was tripled and doubled, respectively, with an increase in steam supply from 50 to 400 mL/min and a temperature rise from 800 to 900 °C, and the time required for complete gasification was also halved. Compared to pyrolysis, the volume fraction of H2 increased from 23% to 37%, and correspondingly, the H2/CO ratio increased from 0.42 to 0.95.</div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"6 3","pages":"Pages 229-237"},"PeriodicalIF":6.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44479067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1

Immigration, transformation, and emission control of sulfur and nitrogen during gasification of MSW: Fundamental and engineering review 城市生活垃圾气化过程中硫和氮的迁移、转化和排放控制：基础和工程综述

IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/j.crcon.2023.03.003

Shuchao Cheng , Xueyu Ding , Xinxin Dong , Mengjie Zhang , Xinqi Tian , Yang Liu , Yaji Huang , Baosheng Jin

{"title":"Immigration, transformation, and emission control of sulfur and nitrogen during gasification of MSW: Fundamental and engineering review","authors":"Shuchao Cheng , Xueyu Ding , Xinxin Dong , Mengjie Zhang , Xinqi Tian , Yang Liu , Yaji Huang , Baosheng Jin","doi":"10.1016/j.crcon.2023.03.003","DOIUrl":"10.1016/j.crcon.2023.03.003","url":null,"abstract":"<div>This paper proposes a comprehensive summary and analysis of an important issue during municipal solid waste (MSW) gasification-sulfur and nitrogen pollution. It provides an overview of the fundamentals of MSW and the basic aspects of nitrogen and sulfur elements. Their characteristics of immigration, transformation and distribution during gasification with control solutions in realized or potential engineering are also concluded. The analysis indicates that the complete scenario of the occurrence form of sulfur and nitrogen elements in MSW is difficult to obtain, owing to the diverse sources and complicated compositions. However, with the assistance of advanced characterization and quantification methods (XPS, XRD, TG-FTIR, et al.), the common sulfur- and nitrogen-containing compounds in both organic and inorganic states can be detected. Adjustment of gasification conditions can regulate the transformation of these elements for emission control. The multiple pollutants including H2S, SOx, COS, NH3, HCN and NOx cannot be eliminated by one-step treatment but a combination of adsorption and catalytic treatments may realize the control goal. This research aims to benefit meeting emission standards during MSW gasification and to provide a reference for other processes such as incineration, pyrolysis and other feedstocks like biomass and refuse derived fuel (RDF).</div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"6 3","pages":"Pages 184-204"},"PeriodicalIF":6.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49508040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Green preparation of self-supporting platinum nanoflower catalyst and its electrocatalytic oxidation performance of methanol 自持铂纳米花催化剂的绿色制备及其对甲醇的电催化氧化性能

IF 6 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2023-09-01 DOI: 10.1016/j.crcon.2023.01.002

Zhen Lu , Hongjie Kang , Ji Li , Jianpeng Shang , Kun Yang , Rui Liu , Zuopeng Li , Feng Feng , Yong Guo , Haidong Zhao

引用次数: 0