The conversion of carbon dioxide into feedstock for the chemical and process industry is the most efficient way to rapidly introduce renewable energy in this value chain. Carbon capture and utilization systems are getting the attention from researchers in the last years, also due to the introduction of carbon tax in many States. Through the hydrogenation of carbon dioxide methane, hydrocarbons, ethanol, formic acid, methanol, dimethyl ether and syngas can be produced. However, methanol dimethyl ether and syngas have the lower value of lost hydrogen during the reaction, equal to 0.33, 0.25 and 0, respectively. Then, these compounds are analyzed in this review. Carbon dioxide is an industrial waste, while hydrogen is generally obtained by the electrolysis of water using surplus renewable energies. Processes and reactors reported in literature regarding the production of methanol, dimethyl ether and syngas by hydrogenation of carbon dioxide are analyzed. For the capture of carbon dioxide adsorption, absorption, membranes, cryogenic systems can be developed. An important role will have ionic liquids, under study by many researchers. Future research efforts should focus on dry reforming processes, innovative carbon dioxide capture techniques and hydrogen availability at reduced cost, and wider dissemination of these scientific and technical concepts to enlarge social acceptance.

将二氧化碳转化为化学和加工行业的原料是在此价值链中快速引入可再生能源的最有效方法。近年来，由于许多州开始征收碳税，碳捕集与利用系统也引起了研究人员的关注。通过二氧化碳的加氢，可以生产出碳氢化合物，碳氢化合物，乙醇，甲酸，甲醇，二甲醚和合成气。但是，甲醇二甲醚和合成气在反应过程中损失的氢值较低，分别等于0.33、0.25和0。然后，在本综述中对这些化合物进行了分析。二氧化碳是一种工业废物，而氢气通常是通过使用多余的可再生能源电解水而获得的。分析了文献报道的关于通过二氧化碳加氢生产甲醇，二甲醚和合成气的方法和反应器。为了捕获二氧化碳，可以开发出吸附，吸收，膜，低温系统。许多研究人员正在研究离子液体的重要作用。未来的研究工作应集中在干法重整工艺，创新的二氧化碳捕集技术和降低成本的氢可利用性，以及更广泛地传播这些科学和技术概念以扩大社会接受度。许多研究人员正在研究中。未来的研究工作应集中在干法重整工艺，创新的二氧化碳捕集技术和降低成本的氢可利用性，以及更广泛地传播这些科学和技术概念以扩大社会接受度。许多研究人员正在研究中。未来的研究工作应集中在干法重整工艺，创新的二氧化碳捕集技术和降低成本的氢可利用性，以及更广泛地传播这些科学和技术概念以扩大社会接受度。