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

Coal fly ash (FA) supported Ni catalysts (Ni-FA) were synthesized via solid-state impregnation method and systematically characterized by XRD, N2-physisorption, H2-TPR/TPD, H2-pulse chemisorption, XPS, TPO, TGA, Raman, and TEM. The effect of different parameters including (i) types of FA, (ii) Ni loading (2.5–15 wt.%), and (iii) reforming temperature (530–730 °C), on the catalytic performance of yNi-FAx catalysts in glycerol steam reforming was investigated. The best performance in terms of activity (glycerol conversion to gas products = 98 %, H2 yield = 78.8 %) and stability (40 h, with low rate of coke formation and sintering 2.44 mgcoke· g catalyst − 1 ·h−1) was achieved for 7.5 % Ni-FA4 catalyst at 630 °C. This was attributed to a higher dispersion of Ni° active sites and stronger interaction with the support, due to the higher surface area of FA4 and the presence of nepheline (providing vacancy sites for anchoring Ni particles) and thermostable mullite.

Development of residue coal fly ash supported nickel catalyst for H2 production via glycerol steam reforming

Bimetallic metal organic framework-templated synthesis of a Cu-ZnO/Al2O3 catalyst with superior methanol selectivity for CO2 hydrogenation

A review on the valorization of CO2. Focusing on the thermodynamics and catalyst design studies of the direct synthesis of dimethyl ether

A comparative study on the performance of M (Rh, Ru, Ni)-promoted metallurgical waste driven catalysts for H2 production by glycerol steam reforming

The 21st century is currently marked globally by an enormous growth in anthropogenic carbon dioxide (CO2) emissions. Among numerous portfolios to address the serious problems caused by this major greenhouse gas, CO2 capture and utilization remain one of the most interesting solutions. In this regard, the staggering CO2 effluents present in the atmosphere could become an abundant chemical feedstock if they were converted into valuable products. Catalytic hydrogenation of CO2 into value-added chemicals and alternative fuels is one of the appealing green strategies to valorize this carbon-containing feedstock, while also contributing to alleviate the global CO2 emissions. This state-of-the-art review highlights a wide range of heterogeneous catalysts and innovative processes for direct CO2 hydrogenation into CO, methanol (MeOH), and dimethyl ether (DME). To overcome catalyst deactivation and improve catalytic performance, we discuss active phases in detail and emphasize the preparation methods, catalytic supports, metal-based catalysts, and synergistic effects. Another essential hurdle is low CO2 conversion related to the thermodynamical stability of CO2, which restricts its use as a reagent on an industrial scale. The state-of-the-art sorption-enhanced process reveals that, by choosing an appropriate water sorbent, it is feasible to overcome the thermodynamic limitation. Therefore, the later part of this review focusses on recent modelling and experimental applications of this integrated process in CO2 hydrogenation for the synthesis of CO, MeOH, and DME.

Efficient approaches to overcome challenges in material development for conventional and intensified CO2 catalytic hydrogenation to CO, methanol, and DME

This study focuses on a thorough investigation of the effect of synthesis parameters (nickel content and preparation method) and operating temperature on the physiochemical properties and catalytic performance of Ni promoted Fe/Mg-bearing metallurgical waste catalyst (Ni-UGSO) for hydrogen production by glycerol steam reforming. The best results were achieved by incorporating 5 wt.% Ni by solid-state impregnation method (SSI-5%Ni-UGSO), leading to almost complete glycerol conversion to gaseous products. Higher H2 yield (80.7 %) and very low coke formation (0.59 mgcoke  h−1(m2/gcat)−1) are the advantages of working at 580 °C by favouring the water-gas-shift (WGS) reaction, whereas increasing temperature to 730 °C allows to almost suppress coke formation (0.18 mgcoke  h−1(m2/gcat)−1) mainly by limiting the Boudouard reaction, with the drawback of a lower hydrogen yield (59.4 %). This notable catalytic behavior was ascribed to the synergic cooperation between Ni and Fe/Mg containing species inside UGSO, through the formation of Ni-FexOy and Ni-MgO active sites.

Ni-Fe catalyst derived from mixed oxides Fe/Mg-bearing metallurgical waste for hydrogen production by steam reforming of biodiesel by-product: Investigation of catalyst synthesis parameters and temperature dependency of the reaction network

Alex Desgagnés

Papers

Efficient approaches to overcome challenges in material development for conventional and intensified CO2 catalytic hydrogenation to CO, methanol, and DME

A comparative study on the performance of M (Rh, Ru, Ni)-promoted metallurgical waste driven catalysts for H2 production by glycerol steam reforming

Ni-Fe catalyst derived from mixed oxides Fe/Mg-bearing metallurgical waste for hydrogen production by steam reforming of biodiesel by-product: Investigation of catalyst synthesis parameters and temperature dependency of the reaction network

Kinetic study of glycerol steam reforming catalyzed by a Ni-promoted metallurgical residue

Development of highly efficient Cu-based catalyst derived from a metallurgical waste for the reverse water-gas shift reaction