Components of alkali solution regeneration exhaust gas

The main components of the exhaust gas resulting from the regeneration of the catalyst alkaline solution in the liquefied gas refining system of catalytic units generally include the following: 1. Hydrocarbons: During the regeneration of the alkaline solution, the catalyst absorbs and converts substances containing hydrocarbons; therefore, a certain amount of hydrocarbons such as methane and ethane are present in the exhaust gas. 2. Ammonia: Alkali solution regeneration is a desulfurization process that involves the absorption and conversion of hydrogen sulfide, during which ammonia gas is generated. 3. Sulfides: The exhaust gases may contain certain sulfides, such as hydrogen sulfide and carbon disulfide. 4. Water vapor: A large amount of water vapor is generated during the alkali solution regeneration process. It should be noted that the specific composition of the exhaust gases is influenced by factors such as the parameters of the alkali solution regeneration process, the choice of catalyst, and the composition of the feed gas; therefore, the composition of the exhaust gases may vary under different process conditions. .