Conceptual design and analysis of a novel system based on ash agglomerating fluidized bed gasification for co-production of hydrogen and electricity

被引：15

作者：

Li, Guang ^{[1
,2
]}

Liu, Zheyu ^{[1
]}

Feng, Rongtao ^{[1
,2
]}

Jiao, Weihong ^{[1
,2
]}

Fang, Yitian ^{[1
]}

Wang, Zhiqing ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Hydrogen; Ash agglomerating fluidized bed; Energy efficiency; Exergy efficiency; Electricity; COMBINED COAL-GASIFICATION; EXERGY ANALYSIS; THERMODYNAMIC ANALYSIS; SIMULATION; ENERGY; INTEGRATION; GASIFIER; SYNGAS;

D O I：

10.1016/j.ijhydene.2017.12.049

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, a novel system with ash agglomerating fluidized bed gasification and CO2 capture to produce hydrogen and electricity is firstly designed in Aspen Plus. The newly proposed system is composed of eight subsystems, namely air separation unit, gasification unit, water gas shift unit, Rectisol unit, CO2 compression unit, Claus unit, pressure swing adsorption unit, gas and steam turbine unit. The thermodynamic performance and hydrogen to coal ratio of the new proposed system are investigated. The results demonstrate that the hydrogen to coal ratio, energy efficiency, net electricity power and exergy efficiency of the overall system for Yangcheng anthracite are 0.096 kg/kg, 46.52%, 1.71 MW and 43.92%, respectively. Additionally, the exergy destruction ratio and exergy efficiency of each subsystem are researched. More importantly, the influences of the oxygen to coal ratio, steam to coal ratio and coal types on the hydrogen to coal ratio, energy efficiency and exergy efficiency are also studied. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：1980 / 1988

页数：9

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