化工进展2023，Vol.42Issue(12)：6507-6517,11.DOI:10.16085/j.issn.1000-6613.2023-0180
天然气藏中酸气H2S与CO2协同转化研究进展
Research progress on synergistic conversion of acid gas H2S and CO2 in natural gas
摘要
Abstract
In order to ensure national energy security and reduce our dependence on foreign oil and gas resources,it is necessary to enhance the exploration of domestic natural gas and other resources.During the exploitation and purification of natural gas,acid gas H2S and CO2 are often produced.Existing acid gas treatment technologies mainly recover the sulfur in H2S through the Claus process,which leaves CO2 untreated and results in the waste of hydrogen and serious carbon emissions.If H2S and CO2 can be synergistically converted,it is expected to reduce carbon emissions and obtain high-value chemicals such as hydrogen,syngas and sulfur simultaneously.Based on the experimental and theoretical researches of more than 30 years in related fields worldwide,this paper reviews the development history of synergistic conversion of H2S and CO2,and summarizes the relevant research progress from the perspectives of thermal reaction(direct thermal reaction,process flow and economic evaluation,catalytic thermal decomposition),photocatalysis,electrocatalysis and plasma catalysis.Detailed information on catalysts,reaction conditions and distribution of reaction products is presented,and the advantages and disadvantages of various technologies are compared.The development trend of the synergistic conversion of H2S and CO2 is prospected and the use of green electricity for small-scale application of electrocatalysis technology in the near future is suggested.At the same time,it is feasible to reduce the carbon emission of thermal catalytic technology through solar heat storage and improve the photocatalytic efficiency through concentration of solar energy.In addition,it is necessary to consider the characteristics of acid gas reservoirs in future studies,including the influence of different H2S/CO2 ratios and impurities such as H2O on the reaction process.关键词
催化/硫化氢/二氧化碳/化学反应/活性Key words
catalysis/hydrogen sulfide/carbon dioxide/chemical reaction/reactivity分类
能源科技引用本文复制引用
于姗,张洪华,付梦瑶,段元刚,段超,黄靖元,唐春,黄泽皑,周莹..天然气藏中酸气H2S与CO2协同转化研究进展[J].化工进展,2023,42(12):6507-6517,11.基金项目
国家自然科学基金(22002123,22211530070,22178291,22109132) （22002123,22211530070,22178291,22109132）
四川省科技厅项目(2022YFSY0052,2022NSFSC1264,23NSFSC0217). （2022YFSY0052,2022NSFSC1264,23NSFSC0217）
