With the expansion of industry, the emission of greenhouse gases is increasing, and its impact on climate is becoming more and more serious. CO 2 is the main culprit of the greenhouse effect, and how to effectively solve the climate problem caused by CO 2 has attracted more and more attention. In recent years, there have been continuous attempts to reduce CO 2 emissions from the source, but no obvious results have been achieved. In fact, CO 2 is not only a greenhouse gas, but also a potential carbon resource. Therefore, how to capture and effectively use CO 2 is also the research direction that many scholars have been exploring recently. In this paper, the current situations of CO 2 capture technologies are reviewed from the aspects of chemical absorption, solid-phase porous materials adsorption, membrane separation, cryogenic separation, hydrate method and microbiological method in the first part. Then, the CO 2 utilization technologies are systematically introduced from the aspect of physical utilization, chemical utilization, biological utilization and mineralization utilization. Furthermore, several representative frontier technologies of CO 2 resource utilization are reported. On this basis, the advantages and disadvantages of different methods are summarized to provide some ideas and references for alleviating the CO 2 issue. • Various traditional and novel CO 2 capture and utilization technologies are summarized. • The challenges and future prospects of CO 2 capture and utilization technologies are analyzed. • The application of CO 2 capture technologies in basic industry and pilot plants is reviewed. • The frontier reports of CO 2 resource utilization in different research directions are reviewed. 

Research progress on CO2 capture and utilization technology

A review on anion-pillared metal–organic frameworks (APMOFs) and their composites with the balance of adsorption capacity and separation selectivity for efficient gas separation

A Review on Anion-Pillared Metal Organic Framework (Apmof) and its Composites with the Balance of Adsorption Capacity and Separation Selectivity for Efficient Gas Separation

Evaluation of supported multi-functionalized amino acid ionic liquid-based sorbents for low temperature CO2 capture

The addition of more amino groups to ionic liquids is promising to enhance supported ionic liquid performance for low-temperature CO2 capture. In our previous studies, 1-ethyl-3-methylimidazolium lysine ([EMIM][Lys]) impregnated on mesoporous silica SBA-15 and commercial PMMA polymer supports showed moderately acceptable CO2 capture capacities. To improve sorbents performance, an amino acid ionic liquid (AAIL) (i.e., –1-aminoethyl-3-methylimidazolium lysine ([AEMIM][Lys]) with one additional amino group attached to the imidazole ring) was synthesized and immobilized into SBA-15 and PMMA with different loadings. The main purpose is to develop efficient AAIL-based sorbents with high CO2 capture capacities and to study the effect of an additional amino group on CO2 adsorption uptakes. 50 wt% [AEMIM][Lys]-immobilized on PMMA exhibited the best CO2 capture capacities of 1.5 mmol/g-sorb and 0.82 mol/mol-AAIL at adsorption-desorption conditions of 30 °C and 100 °C respectively, and under flue gas (CO2 composition of 15 %), when compared with previous results (1.06 mmol/g-sorb and 0.54 mol/mol-AAIL for 50 wt% [EMIM][Lys] supported on PMMA) under the same condition. This higher capacity demonstrated the efficiency of an additional amino group, though slightly far from the theoretical values (2.75 mmol/g-sorb and 1.5 mol/mol-AAIL). Cyclic performances were also conducted to assess the sorbents long-term stabilities.

Zhoulan Huang

Papers

Evaluation of supported multi-functionalized amino acid ionic liquid-based sorbents for low temperature CO2 capture

Study on the efficiency of multiple amino groups in ionic liquids on their sorbents performance for low-temperature CO2 capture