Identifying Commercial Opportunities for the Reverse Water Gas Shift Reaction,Energy Technology

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Identifying Commercial Opportunities for the Reverse Water Gas Shift Reaction
Energy Technology ( IF 3.6 ) Pub Date : 2021-09-21 , DOI: 10.1002/ente.202100554
R. Matthew Bown ₁ , Miriam Joyce ₁ , Qi Zhang ₁ , Tomas Ramirez Reina ₁ , Melis S. Duyar ₁

Affiliation

The reverse water gas shift (RWGS) reaction is a promising technology for introducing carbon dioxide as feedstock to the broader chemical industry through syngas production. While this reaction has attracted significant attention recently for catalyst and process development, there is a need to quantify the net CO₂ consumption of RWGS schemes, while taking into account parameters such as thermodynamics, alongside technoeconomic constraints for feasible process development. Also of particular importance is the consideration of the cost and carbon footprint of hydrogen production. Herein, research needs to enable net carbon-consuming, economically feasible RWGS processes are identified. By considering the scenarios of hydrogen with varying carbon footprints (gray, blue, and green) as well as analyzing the sensitivity to process heating method, it is proposed that the biggest enabling development for RWGS commercial implementation as a CO₂ utilization technology will be the availability of low-cost and low-carbon sources of hydrogen. RWGS catalyst improvements alone will not be sufficient for economic feasibility but are necessary given the prospect of dropping hydrogen prices.

中文翻译：

确定反向水煤气变换反应的商业机会

反向水煤气变换 (RWGS) 反应是一种很有前景的技术，可通过合成气生产将二氧化碳作为原料引入更广泛的化学工业。虽然该反应最近在催化剂和工艺开发方面引起了极大关注，但仍有必要量化净 CO ₂RWGS 方案的消耗，同时考虑热力学等参数，以及可行工艺开发的技术经济约束。同样特别重要的是考虑制氢的成本和碳足迹。在此，确定了实现净碳消耗、经济上可行的 RWGS 工艺的研究需求。通过考虑具有不同碳足迹（灰色、蓝色和绿色）的氢情景以及分析对过程加热方法的敏感性，提出了作为 CO _{2 的}RWGS 商业实施的最大支持发展利用技术将获得低成本和低碳的氢源。仅靠 RWGS 催化剂改进不足以实现经济可行性，但考虑到氢价下降的前景，这是必要的。

更新日期：2021-11-04

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