How to control reactions of syngas

As is known, syngas containing a mixture of carbon monoxide and hydrogen is used to synthesize various products such as methanol, artificial methane, and gasoline. In this research, a complete thermodynamic analysis was performed in a wide range of temperatures and pressures to predict the most probable direction of the synthesis reactions. It was shown that in the case of methanol synthesis at normal pressure, an increase in the reaction temperature above 400 K leads to the positive value of the Gibbs potential, as a result of which this reaction is blocked. An increase in pressure to at least 3 MPa is necessary to implement the methanol synthesis reaction. Under this pressure, the methanol synthesis can be carried out in the temperature range from 480 to 530 K. In addition, to enhance the alcohol yield, this process requires the use of a special catalyst. Artificial n-octane is mainly formed at 3 MPa in the temperature range from 530 to 600 K along with the use of a catalyst to improve the reaction selectivity. Selective methane synthesis may occur at a syngas pressure of 3 MPa but at high reaction temperatures, between 900 and 1200 K. To reduce the upper temperature of this process and increase the yield of the final product without significantly changing the reaction rate, a special catalyst is used. The reactions of syngas cease at normal pressure when the temperature increases above 900 K. At a syngas pressure of 3 MPa the synthesis reactions should cease if the temperature rises above 1200K,