What are the influences on primary reforming reactions

(1) Pressure

From the equation of the reaction, it is clear that the hydrocarbon steam reforming reaction is - a reversible reaction with increasing volume. From the reaction equilibrium considerations, the increase in pressure is an unfavorable factor for the reaction, however, the actual operating situation is exactly the opposite of the above conclusion, pressurized conversion than atmospheric conversion has obvious advantages: ① pressurized conversion can save compression power consumption.

① Pressurized conversion can save compression power consumption.

② Pressurization increases the concentration of reaction gas, which is conducive to improving the reaction speed, reducing the amount of catalyst, reducing the size of the equipment, and pressurization is beneficial to the conversion and decarbonization of the later processes.

③ Pressurization is beneficial to the recycling of production waste heat.

(2) Temperature

Hydrocarbon steam conversion is a heat-absorbing reaction, so whether it is from the reaction equilibrium or from the point of view of increasing the speed, increase the temperature is always conducive to the conversion reaction. However, a high conversion temperature reduces the service life of the furnace tube and increases the fuel consumption. consumption will increase.

(3)Water-carbon ratio

Water-carbon ratio is not only the hydrocarbon steam conversion should be balanced and the reaction speed of the important factors affecting, but also inhibit the conversion of the catalyst carbonization of the important conditions. Water-carbon ratio increases, that is, the amount of steam increases, the furnace pipe resistance will rise, fuel consumption will increase.