Читать книгу Engineering Solutions for CO2 Conversion - Группа авторов - Страница 58

1 (a) CO2 + 3H2 → CH3OH + H2O

2 (b) CO + 2H2 → CH3OH

3 (c) CO + H2O → CO2 + H2

Furthermore, products obtained from the Fischer–Tropsch reaction and methanol can also be recombined with syngas, CO, or H₂ to obtain different products highly valued in the chemical industry. Some examples for different products are, for instance, ethanol to gasoline reaction by means of zeolites [116, 117]; hydroformylation reaction of olefins with syngas to aldehydes, and alcohols with cobalt and rhodium catalysts [118]; carbonylation reactions [119], where CO from the electrolysis can be employed; and methanol plus syngas or carbon monoxide, for the synthesis of value‐added chemicals [117].

The important role of electrolysis as a bridge between renewable energies, energy storage technology, and value‐added products (chemicals, fuels, etc.) is therefore obvious. The combination in the same step of both technologies, CO₂ co‐electrolysis to produce syngas and the production of hydrocarbons by Fischer–Tropsch process, will give rise to a more efficient, compact, and environmental friendly technology. The eCOCO₂ project [120] (sponsored by the EU commission via the H2020 program) based on CO₂ conversion focuses on the development of co‐ionic electrochemical cells, which enable both: the electrolysis of water and the hydrocarbon synthesis in the same step. The CO₂ converter consists of electrochemical cell constructed with a co‐ionic electrolyte that allows the injection of protons to the reaction cell, and the simultaneous extraction of oxygen ions. In addition, a multifunctional catalyst will be integrated in the electrochemical cell for the hydrocarbon generation. The final objective of this project is the production of more than 250 g of jet fuel per day.