East China University of Technology develops new technology for high-temperature carbon dioxide capture

Helping petrochemical green manufacturing to achieve carbon neutrality

Recently, researchers from East China University of Science and Technology and the University of Sheffield in the United Kingdom have combined the calcium cycle (CaL) and reverse water gas shift reaction (RWGS) by synthesizing composite materials with dual functions of adsorption/catalysis.
At the same temperature in the same reaction tower, the simulated industrial cracking flue gas is subjected to high-temperature capture and in-situ conversion of carbon dioxide
.

Authoritative experts in the industry said that this high-efficiency, energy-saving, and low-cost CaL/RWGS integrated process technology provides a basis for innovation and development to accelerate the promotion of green petrochemical manufacturing
.

It is understood that this integrated technology has excellent high-temperature carbon dioxide capture performance, and the carbon dioxide adsorption capacity of the material is as high as 9.
0 mol/kg, which solves the engineering bottleneck problem of easy sintering of calcium oxide in the CaL process, and obtains long-term cycle operation stability; The bimetallic catalytic strategy of redox heterojunction makes the in-situ conversion rate of carbon dioxide close to 90% and the selectivity of carbon monoxide in the product gas close to 100%, avoiding the engineering complexity of subsequent separation
.

This integrated technology makes full use of the calorific value of high-temperature flue gas, hardly requires additional reaction energy input, and greatly reduces the huge energy consumption of conventional carbon dioxide capture, cooling, and reaction heating
.

Carbon capture and efficient use is an effective solution to the global warming crisis
.