Hydrogen production and hydrogenation conversion process
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In the hydrogenation conversion process for producing hydrogen from naphtha and dry gas, with the participation of conversion catalysts and under certain temperature and pressure conditions, organic sulfur compounds (thiols, thioethers, disulfides, thiophenes, sulfur oxides, carbon disulfide) react with H2 to form inorganic sulfur (H2S). All of these reactions are exothermic; therefore, could this lead to a significant increase in temperature within the catalyst bed?
Generally, the hydrogenation of sulfides releases limited heat, and there are also requirements regarding the sulfur content in the feedstock. The temperature rise during hydrogenation mainly stems from the hydrogenation reaction of unsaturated hydrocarbons in the feedstock; especially in refinery gas, fluctuations in the content of unsaturated hydrocarbons can cause overheating.