Santos Magno F, Bresciani Antonio E, Ferreira Newton L, Bassani Gabriel S, Alves Rita M B
Department of Chemical Engineering, Universidade de São Paulo, Avenida Professor Lineu Prestes, 580, Butantã, 05508-000, São Paulo, SP, Brazil.
Repsol Sinopec Brazil, Praia de Botafogo, 300, Botafogo, 22250-040, Rio de Janeiro - RJ, Brazil.
J Environ Manage. 2023 Nov 1;345:118822. doi: 10.1016/j.jenvman.2023.118822. Epub 2023 Aug 17.
The reverse water gas shift (RWGS) reaction converts carbon dioxide (CO) and hydrogen (H) to syngas, which is used to produce various high-added-value chemicals. This process has attracted great interest from researchers as a way of mitigating the potential environmental impacts of this greenhouse gas, with emphasis on global warming. This work aims to model and simulate an industrial catalytic reactor using kinetic data for the RWGS reaction. The simulation was carried out in Aspen Plus® v10. The thermodynamic analysis showed that the appropriate conditions for the reaction are feed molar ratio (H/CO) of 0.8:1, 750 °C, and 20 bar. The RWGS process proceeds in a multi-tubular fixed bed reactor with 36.26% CO conversion and 96.41% CO selectivity, at residence times in the order of 2.7 s. These results are at near-equilibrium CO conversion with higher CO selectivity.
逆水煤气变换（RWGS）反应将二氧化碳（CO₂）和氢气（H₂）转化为合成气，合成气用于生产各种高附加值化学品。作为减轻这种温室气体潜在环境影响（尤其是全球变暖影响）的一种方式，该过程已引起研究人员的极大兴趣。这项工作旨在利用RWGS反应的动力学数据对工业催化反应器进行建模和模拟。模拟在Aspen Plus® v10中进行。热力学分析表明，该反应的合适条件为进料摩尔比（H₂/CO₂）0.8:1、750°C和20巴。RWGS过程在多管固定床反应器中进行，CO转化率为36.26%，CO选择性为96.41%，停留时间约为2.7秒。这些结果接近平衡CO转化率，且具有较高的CO选择性。
