Air separation and flue gas compression and purification units for oxy-coal combustion systems

被引：184

作者：

Darde, Arthur ^{[1
]}

Prabhakar, Rajeev

Tranier, Jean-Pierre ^{[2
]}

Perrin, Nicolas ^{[3
]}

机构：

[1] Air Liquide Engn, F-94503 Champigny Sur Marne, France

[2] Air Liquide SA Ctr Rech Claude Delorme, F-78354 Jouy En Josas, France

[3] Air Liquide SA, F-75007 Paris, France

来源：

GREENHOUSE GAS CONTROL TECHNOLOGIES 9 | 2009年 / 1卷 / 01期

关键词：

oxy-combustion; coal; cryogenic air separation unit; CO2; capture; clean coal;

D O I：

10.1016/j.egypro.2009.01.070

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Air Liquide (AL) has been actively involved in the development of oxy-coal technologies for CO2 capture from power plants for the past 5 years. Large systems for oxygen production and flue gas purification are required for this technology. Air Liquide has been a leader in building large Air Separation Units (ASUs) and more developments have been performed to customize the air separation process for coal-fired power plants. Air Liquide is also actively involved in developing processes for purification of flue gas from oxy-coal combustion systems for enhanced oil recovery applications as well as sequestration in saline aquifers. Through optimization of the cryogenic air separation process for oxy-coal combustion, a 20% reduction in the separation energy requirement of the ASU has been achieved. Several CO2 capture schemes have been developed to study the energy requirement to achieve CO2 product streams meeting different specifications. Utilization of waste heat from both the ASU and CO2 capture unit for heating boiler feed water has been shown to significantly improve the energy efficiency of the overall process. (C) 2008 Elsevier Ltd. All rights reserved reserved.

引用

页码：527 / 534

页数：8