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Comparative techno-economic analysis for steam methane reforming in a sorption-enhanced membrane reactor: Simultaneous H2 production and CO2 capture
Chemical Engineering Research and Design ( IF 3.7 ) Pub Date : 2021-05-23 , DOI: 10.1016/j.cherd.2021.05.013
Hyunjun Lee , Boreum Lee , Manhee Byun , Hankwon Lim

Hydrogen (H2) is currently receiving significant attention as a sustainable energy carrier. Steam methane reforming (SMR) accounts for approximately 50% of H2 production methods worldwide. However, SMR is concern because of the prodigious carbon dioxide (CO2) emissions that have resulted in a global climate emergency. CO2 emissions remain, although some efforts have been made in a membrane reactor (MR) coupled with membranes to improve the H2 yield. A sorption-enhanced membrane reactor (SEMR) has been proposed as a next-generation process for simultaneous H2 production and CO2 capture. In this study, the thermodynamic and economic evaluation of SEMR were implemented using a process simulation, an itemized cost estimation, a sensitivity analysis (SA), and an uncertainty analysis (UA). The thermodynamic analysis results revealed that unit H2 production costs of 4.53, 1.98, and 3.04 $ kgH2−1 were obtained at 773 K for a conventional packed-bed reactor (PBR), a MR, and a SEMR, respectively. The SA results identified PSA as the most critical economic parameter for a unit H2 production cost for a PBR, whereas natural gas is determined to be the most influential parameter for a MR and a SEMR. The UA results from a Monte-Carlo simulation provided a broad range of unit H2 production costs, with 4.26–5.44 $ kgH2−1 for a PBR, 1.61–2.94 $ kgH2−1 for a MR, and 2.83–4.19 $ kgH2−1 for an SEMR. This indicates that using a SEMR for next-generation H2 production and CO2 capture is beneficial.



中文翻译:

吸附增强膜反应器中蒸汽甲烷重整的比较技术经济分析:同时产生 H 2和捕获CO 2

氢(H 2)目前作为一种可持续能源载体受到了极大的关注。蒸汽甲烷重整 (SMR) 约占全球H 2生产方法的50% 。然而,由于导致全球气候紧急情况的大量二氧化碳 (CO 2 ) 排放,SMR 令人担忧。CO 2排放仍然存在,尽管已经在与膜结合的膜反应器(MR)中做出了一些努力以提高H 2产率。吸附增强膜反应器 (SEMR) 已被提议作为同时生产H 2和 CO 2的下一代工艺捕获。在这项研究中,SEMR 的热力学和经济评估是使用过程模拟、逐项成本估算、敏感性分析 (SA) 和不确定性分析 (UA) 来实施的。热力学分析结果显示,对于常规填充床反应器 (PBR)、MR 和 SEMR,在 773 K 下获得的单元 H 2生产成本分别为 4.53、1.98 和 3.04 $ kgH 2 -1。SA 结果将 PSA 确定为 PBR的单位 H 2生产成本的最关键经济参数,而天然气被确定为对 MR 和 SEMR 影响最大的参数。Monte-Carlo 模拟的 UA 结果提供了广泛的单元 H 2生产成本,具有4.26-5.44 $ KGH 2 -1的PBR,1.61-2.94 $ KGH 2 -1的MR和2.83-4.19 $ KGH 2 -1为SEMR。这表明使用SEMR 进行下一代H 2生产和CO 2捕获是有益的。

更新日期:2021-06-05
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