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Title: Fluidized-bed gasification combined continuous sorption-enhanced steam reforming system to continuous hydrogen production from waste plastic
Author: Dou, Binlin1; Wang, Kaiqiang1; Jiang, Bo1; Song, Yongchen1; Zhang, Chuan1; Chen, Haisheng2; Xu, Yujie2
Source: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Issued Date: 2016-02-19
Volume: 41, Issue:6, Pages:3803-3810
Keyword: Fluidized-bed gasification (FBG) ; Sorption-enhanced steam reforming (SERP) ; Hydrogen production ; Waste plastic (WP)
DOI: 10.1016/j.ijhydene.2015.12.197
DOC Type: Article
English Abstract: This paper proposes a novel system for continuous hydrogen production from waste plastic (WP) by fluidized-bed gasification (FBG) combined sorption-enhanced steam reforming process (SERP). The system was operated in successive processes of several sections: (a) gasifying a WP into a raw gas comprising CO, H-2, CH4, total hydrocarbons (THC), and small amount of HCl contaminant, etc.; (b) passing the raw gas to hydrogen production through two moving-bed reactors by continuous SERP process over Ni-based catalyst mixed CaO sorbent for in-situ CO2 capture and HCl removal; (c) simultaneously regenerating CaCO3 formed and catalyst with carbons deposited in other moving-bed reactor at the regeneration condition selected; and (d) carrying the particles of catalyst and sorbent to continuous steam reforming and their regeneration between two moving bed reactors by riser. Gradually expanding chamber design of FBG reactor suitable for different particles flow to prolong the residence times of gas and solid phases makes high carbon conversion and the maximum value is up to 83.6% at 880 degrees C during FBG stage. The combination of FBG and SERP has produced a stream of high-purity hydrogen at some certain conditions, and about 88.4 vol % of hydrogen (H2O- and N-2-free basis) was obtained at 818 degrees C of FBG temperature with 706-583 degrees C of SERP temperature. Reduced Ni-based catalyst efficiently converted raw gas from FBG and steam to H-2, and CaO sorbent in the moving-bed reactor are capable of reducing the HCl and CO2 to low levels at all the temperatures tested. Copyright (C) 2016, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
WOS Headings: Science & Technology ; Physical Sciences ; Technology
WOS Subject: Chemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS Subject Extended: Chemistry ; Electrochemistry ; Energy & Fuels
WOS Keyword Plus: HIGH-TEMPERATURE ; GLYCEROL ; PYROLYSIS ; BIOMASS ; REACTOR ; FUEL ; CATALYSTS ; REMOVAL ; GAS
Indexed Type: SCI
Funder: Natural Science Foundation of China(91434129 ; International Science and Technology Cooperation Program of China(2014DFA60600) ; Fundamental Research Funds for the Central Universities(DUT15JJ(G)02) ; 51476022 ; 51276032 ; 51522605)
Language: 英语
WOS ID: WOS:000371654800007
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112438
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Dalian Univ Technol, Key Lab Ocean Energy Utilizat & Energy Conservat, Minist Educ, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
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