Analysis of new system combining CO2 cryogenic capture and liquefaction with N2/O2 separation

DING Jie; LI Shuhong; CHENG Deyuan; ZHANG Xiaosong

doi:10.3969/j.issn.0438-1157.2012.z2.030

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Analysis of new system combining CO₂ cryogenic capture and liquefaction with N₂/O₂ separation

更新时间：2025-12-10

- Analysis of new system combining CO₂ cryogenic capture and liquefaction with N₂/O₂ separation
- CIESC Journal Issue S2, Pages: 161-165(2012)
- 作者机构：
  
  1. 东南大学能源与环境学院,江苏,南京,210096
  2. 中建三局总承包公司,湖北,武汉,430000
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.z2.030
  CLC： Q028.1
- Online First：28 December 2012，
  
  Published：28 December 2012
- 稿件说明：
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DING Jie, LI Shuhong, CHENG Deyuan, et al. Analysis of new system combining CO₂ cryogenic capture and liquefaction with N₂/O₂ separation[J]. CIESC Journal, 2012, (S2): 161-165. DOI: 10.3969/j.issn.0438-1157.2012.z2.030.
DOI：

DING Jie, LI Shuhong, CHENG Deyuan, et al. Analysis of new system combining CO₂ cryogenic capture and liquefaction with N₂/O₂ separation[J]. CIESC Journal, 2012, (S2): 161-165. DOI: 10.3969/j.issn.0438-1157.2012.z2.030. DOI：

摘要

提出了一种CO2低温捕集液化与N2/O2分离的新型复合系统

并且对该系统的性能以及优势进行了分析。这一系统不仅将CO2低温捕集液化与N2/O2的分离结合起来

而且能达到降低能耗与减少投资的目的。采用理论分析和软件模拟相结合的方法

对该系统进行可行性分析。结果显示

这一新型系统不仅能量消耗低于传统醇胺吸收捕集CO2的系统

该新型复合系统捕集1 t CO2耗能3.29 GJ·t-1

而传统MDEA吸收法耗能4.11 GJ·t-1。而且在该系统中

CO2分离液化的同时

可以获得副产物N2与O2。本研究阐明了一种CO2低温捕集液化与N2/O2分离复合系统的新思想。

Abstract

A novel CO2 cryogenic capture and liquefaction system is introduced and studied theoretically in this paper.The performance and advantages of the combined system are discussed theoretically in this research.This new system combines the CO2 cryogenic capture and liquefaction system with the N2/O2 separation together.The aim is to reduce the energy consumption of CO2 separation.Theoretical analysis and software-simulation of the combined system are carried out together.The results show that the energy consumption of the proposed new system is lower than the traditional amine solution capture system.When one ton CO2 is separated and liquefied

the total primary energy consumption of this combined system is 3.29 GJ

while the traditional amine solution capture system is 4.11 GJ.In addition

the byproducts N2 and O2 can be obtained as well.The study of this paper presents a new thought for the CO2 cryogenic capture and liquefaction system.

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