Houda M. Haidar, James W. Butler, Anh-Duong Dieu Vo, Peter Gogolek, Kimberley McAuley
{"title":"Modeling of a Heat-Integrated Biomass Downdraft Gasifier with Construction and Demolition Waste as Feedstock","authors":"Houda M. Haidar, James W. Butler, Anh-Duong Dieu Vo, Peter Gogolek, Kimberley McAuley","doi":"10.1021/acs.iecr.5c01138","DOIUrl":null,"url":null,"abstract":"A mathematical model for heat-integrated downdraft gasification of pine wood is extended to account for construction and demolition (C&D) waste as feedstock. Model equations account for a high proportion of inerts in C&D waste compared to pine wood. Statistical subset selection is used to select 11 out of 39 parameters for estimation using 13 experimental runs. Model validation shows improved predictions compared to pine-wood parameters. Simulations reveal that a lower volumetric feed rate of C&D is required to generate the same energy as pine wood, due to its higher density. Using C&D results in lower H<sub>2</sub>/CO ratios and more tar in producer gas. An appropriate solid removal rate is crucial for higher-quality producer gas. Reducing the moisture of C&D from 8.1 to 5.0 wt % increases CO and H<sub>2</sub> mole fractions by 4.3 and 3.6%, respectively. Experimental and simulation results confirm that C&D is a promising feedstock for gasification and subsequent electricity generation.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"13 1","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial & Engineering Chemistry Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1021/acs.iecr.5c01138","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
A mathematical model for heat-integrated downdraft gasification of pine wood is extended to account for construction and demolition (C&D) waste as feedstock. Model equations account for a high proportion of inerts in C&D waste compared to pine wood. Statistical subset selection is used to select 11 out of 39 parameters for estimation using 13 experimental runs. Model validation shows improved predictions compared to pine-wood parameters. Simulations reveal that a lower volumetric feed rate of C&D is required to generate the same energy as pine wood, due to its higher density. Using C&D results in lower H2/CO ratios and more tar in producer gas. An appropriate solid removal rate is crucial for higher-quality producer gas. Reducing the moisture of C&D from 8.1 to 5.0 wt % increases CO and H2 mole fractions by 4.3 and 3.6%, respectively. Experimental and simulation results confirm that C&D is a promising feedstock for gasification and subsequent electricity generation.
期刊介绍:
ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.