A Gross-Margin Model for Defining Technoeconomic Benchmarks in the Electroreduction of CO2
A Gross-Margin Model for Defining Technoeconomic Benchmarks in the Electroreduction of CO2
复制标题
DOI：
10.1002/cssc.201600394
复制
发表时间：
2016-08-09
期刊：
影响因子：
8.4
通讯作者：
Kenis, Paul J. A.
中科院分区：
文献类型：
--
作者：
Verma, Sumit;Kim, Byoungsu;Kenis, Paul J. A.
我们引入了一个毛利模型来评估通过电还原二氧化碳生产不同的C-1-C-2化学品，如一氧化碳、甲酸、甲醇、甲烷、乙醇和乙烯的技术经济可行性。得出了包括最大工作电池电位(V-max)、最小工作电流密度(j(Min))、法拉第效率(FE)和催化剂耐久性(t(Catdur))在内的关键性能基准。不同化学品的V-max值表明，CO和HCOOH是最经济可行的产品。选择性要求表明，将经济上不太可行的化学品(CH3OH、CH4、C2H5OH、C2H4)与更可行的化学品(CO、HCOOH)联合生产可以是抵消个别产品的V-max要求的一种策略。还推导了j(Min)和t(Catdur)等其他性能要求，并对替代工艺设计和操作条件的可行性进行了评估。
We introduce a gross-margin model to evaluate the technoeconomic feasibility of producing different C-1-C-2 chemicals such as carbon monoxide, formic acid, methanol, methane, ethanol, and ethylene through the electroreduction of CO2. Key performance benchmarks including the maximum operating cell potential (V-max), minimum operating current density (j(min)), Faradaic efficiency (FE), and catalyst durability (t(catdur)) are derived. The V-max values obtained for the different chemicals indicate that CO and HCOOH are the most economically viable products. Selectivity requirements suggest that the coproduction of an economically less feasible chemical (CH3OH, CH4, C2H5OH, C2H4) with a more feasible chemical (CO, HCOOH) can be a strategy to offset the V-max requirements for individual products. Other performance requirements such as j(min) and t(catdur) are also derived, and the feasibility of alternative process designs and operating conditions are evaluated.