Natural gas purification by heat pump assisted MEA absorption process
Natural gas purification by heat pump assisted MEA absorption process
复制标题
热泵辅助MEA吸收工艺净化天然气
DOI：
10.1016/j.apenergy.2017.07.052
复制
发表时间：
2017-10
期刊：
影响因子：
11.2
通讯作者：
Y. Kitamura
中科院分区：
文献类型：
--
作者：
C. Song（宋春风）;Q. Liu;N. Ji;S. Deng;J.Zhao;Y. Kitamura
天然气净化是天然气注入管道输送网格之前的一个关键的预处理过程。一般情况下，天然气中的酸性杂质(如二氧化碳和硫化氢)可通过单乙醇胺(MEA)吸收脱除。然而，过度的能源消耗仍然是当前吸收过程的挑战。本文提出了一种新的热泵辅助吸收过程。为了回收解吸阶段的冷凝余热，对蒸气馏出液流进行压缩以提高(火用)率，然后与底流耦合。同时，利用膨胀机回收馏分油的废压力。模拟结果表明，该吸收过程的净能耗可降低到7.2 MW，相当于传统吸收过程的17.5%。热泵辅助吸收过程的除杂能耗(以CO2为参比)可降至1.78 MJ/kg CO2。
Natural gas purification is a critical pretreatment process before it can be injected into the pipeline delivery grid. Generally, Acid impurities (i.e. CO2and H2S) in natural gas can be removed by MEA (monoethanolamine) absorption process. However, excessive energy consumption is still the challenge for the current absorption processes. In this work, a novel heat-pump assisted absorption process is proposed. To recover the waste condensation heat in desorption stage, the vapor distillate stream is compressed to elevate the exergy rate, and then coupled with the bottom stream. Meanwhile, the waste pressure of distillate is recovered by an expander. The simulation results indicated that the net energy input of the proposed absorption process could be saved to 7.2 MW, which equaled to 17.5% of the conventional process. The energy consumption of impurity removal (set CO2as reference) for the heat-pump assisted absorption process can be reduced to 1.78 MJ/kg CO2.
登录
查看更多内容
影响因子：
11.2
作者：
Se-young Oh;M. Binns;Habin Cho;Jin-Kuk Kim
通讯作者：
Se-young Oh;M. Binns;Habin Cho;Jin-Kuk Kim
影响因子：
11.2
作者：
Youngjoo Seo;Seongmin Park;Hyery Kang;Yun-Ho Ahn;Dongwook Lim;Se-Joon Kim;Jaehyoun Lee;J. Lee
通讯作者：
Youngjoo Seo;Seongmin Park;Hyery Kang;Yun-Ho Ahn;Dongwook Lim;Se-Joon Kim;Jaehyoun Lee;J. Lee
DOI：
10.1016/j.jcou.2013.12.001
发表时间：
2014-03
期刊：
Journal of CO 2 Utilization
影响因子：
--
作者：
Yadollah Tavan;Alireza Tavan
通讯作者：
Yadollah Tavan;Alireza Tavan
影响因子：
8.6
作者：
S. Dinda;V. Goud;A. Patwardhan;N. Pradhan
通讯作者：
S. Dinda;V. Goud;A. Patwardhan;N. Pradhan
鼓泡塔中氨溶液吸收CO2的传质与能耗
影响因子：
11.2
作者：
Chu, Fengming;Yang, Lijun;Yang, Yongping
通讯作者：
Yang, Yongping