Catalytic co-pyrolysis of solid wastes (low-density polyethylene and lignocellulosic biomass) over microwave assisted biochar for bio-oil upgrading and hydrogen production
Rongge Zou , Chenxi Wang , Moriko Qian , Erguang Huo , Xiao Kong , Yunpu Wang , Leilei Dai , Lu Wang , Xuesong Zhang , Wendy C. Mateo , Roger Ruan , Hanwu Lei
{"title":"Catalytic co-pyrolysis of solid wastes (low-density polyethylene and lignocellulosic biomass) over microwave assisted biochar for bio-oil upgrading and hydrogen production","authors":"Rongge Zou , Chenxi Wang , Moriko Qian , Erguang Huo , Xiao Kong , Yunpu Wang , Leilei Dai , Lu Wang , Xuesong Zhang , Wendy C. Mateo , Roger Ruan , Hanwu Lei","doi":"10.1016/j.jclepro.2022.133971","DOIUrl":null,"url":null,"abstract":"<div><p><span><span>Metal catalysts are unavoidable within the process of catalytic </span>pyrolysis<span><span>, a part of hydrogen production<span>; as a result, the reuse and disposal of these materials are problems that need to be solved. Biochar, with its extensive sources, large specific area, and developed pores, has the potential to be developed in this catalytic area. In this study, we used microwave-assisted corn stover biochar as a catalyst in the co-pyrolysis of Douglas Fir (DF) and low-density polyethylene (LDPE) in order to investigate its catalytic effects. The results showed that the biochar significantly increased the </span></span>selectivity of hydrogen (H</span></span><sub>2</sub><span><span>) in the syngas, and the highest selectivity that could be achieved was 72 vol% at 650 °C, with a biochar (BC)/feedstock ratio of 4. Furthermore, the application of biochar decreased the wax yield and contributed to the good selectivity of aromatics. The biochar developed in this study was also proven to show good </span>reusability, as even after 10 times of reuses, the biochar still achieved a yield of H</span><sub>2</sub> over 50 vol%.</p></div>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":null,"pages":null},"PeriodicalIF":11.3000,"publicationDate":"2022-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"22","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Catalysis ","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0959652622035430","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 22
Abstract
Metal catalysts are unavoidable within the process of catalytic pyrolysis, a part of hydrogen production; as a result, the reuse and disposal of these materials are problems that need to be solved. Biochar, with its extensive sources, large specific area, and developed pores, has the potential to be developed in this catalytic area. In this study, we used microwave-assisted corn stover biochar as a catalyst in the co-pyrolysis of Douglas Fir (DF) and low-density polyethylene (LDPE) in order to investigate its catalytic effects. The results showed that the biochar significantly increased the selectivity of hydrogen (H2) in the syngas, and the highest selectivity that could be achieved was 72 vol% at 650 °C, with a biochar (BC)/feedstock ratio of 4. Furthermore, the application of biochar decreased the wax yield and contributed to the good selectivity of aromatics. The biochar developed in this study was also proven to show good reusability, as even after 10 times of reuses, the biochar still achieved a yield of H2 over 50 vol%.
期刊介绍:
ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels.
The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.