CO2 hydrogenation to high-value products via heterogeneous catalysis

Abstract

Recently, carbon dioxide capture and conversion, along with hydrogen from renewable resources, provide an alternative approach to synthesis of useful fuels and chemicals. People are increasingly interested in developing innovative carbon dioxide hydrogenation catalysts, and the pace of progress in this area is accelerating. Accordingly, this perspective presents current state of the art and outlook in synthesis of light olefins, dimethyl ether, liquid fuels, and alcohols through two leading hydrogenation mechanisms: methanol reaction and Fischer-Tropsch based carbon dioxide hydrogenation. The future research directions for developing new heterogeneous catalysts with transformational technologies, including 3D printing and artificial intelligence, are provided.

Transforming carbon dioxide into jet fuel using an organic combustion-synthesized Fe-Mn-K catalyst

“…Furthermore, hydrocarbon synthesis via the hydrogenation of CO 2 usually favours the formation of short-chain, rather than desirable long-chain, hydrocarbons. Hence most of the research in this area have focused on the selective hydrogenation of CO 2 to CH 4 , the oxygenates, CH 3 OH, HCOOH, and light olefins (C 2 -C 4 olefins) [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] , There have been limited studies on producing liquid hydrocarbons of molecularity C 5+ [42][43][44] .…”

Relay catalysis in the direct conversion of carbon dioxide to high-value chemicals

“…, 其 中热催化法易于得到多种目标产物且时空产率较 高 [3,10,11] . 一般地, 通过直接或者间接CO 2 加氢过程, 既可以 获得含氧化合物(如甲酸、甲醇、乙醇等), 也可获得 碳氢化合物(如甲烷、汽油、柴油、低碳烷烃(液化石 油气(liquefied petroleum gas, LPG))、低碳烯烃、芳烃 等) [12,13] .…”

“…性组分分别催化CO活化与C−C偶联反应, 并通过分子 筛择形C−C偶联, 实现目标碳氢化合物的高选择性合 成 [13,18] . 该接力催化方法利用热力学有利的MTH反应, [6,10,19,20] . 本文主 [15] , 而受动力学限制及抑制积碳的需要, MTO反 应温度一般高于400℃ [21] .…”

Computational insights into selective CO2 hydrogenation to CH3OH catalysed by ZnO based nanocages

“…20 Keeping all these in mind, several homogeneous and heterogeneous catalysts have been investigated for efficient CO 2 hydrogenation to CH 3 OH. 8,9,12,[15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] Besides, most of the industrial catalysts are metals supported by oxide-based nanoparticles. 20,32 Industrial CH 3 OH is also obtained from the syngas mixture (CO, CO 2 and H 2 ) over the Cu/ZnO/Al 2 O 3 catalyst at a temperature of 473-573 K and a pressure of 5-10 MPa.…”