Treating agent for mixing acid components in mixed gases

Abstract

The invention relates to a treating agent for acid components in mixed gases. The treating agent comprises a composition containing hydramine and amide or a water solution. The treating agent is used for removing and purifying the acid components in the mixed gases, can be applied to the gas treatment processes in the fields such as natural gas extraction, chemical fertilizer gas synthesis, petrochemical production and room-temperature gas recovery.

Description

technical field

[0001] The invention relates to a treatment agent for acidic components in mixed gas, including a composition or aqueous solution containing alcohol amine and amide, which is used for the removal and purification of acidic components in mixed gas, and can be applied to natural gas , Fertilizer synthesis gas, petrochemical production, greenhouse gas recovery and other gas treatment processes. Background technique

[0002] At present, the process gases of natural gas, chemical fertilizer synthesis gas, refineries, and greenhouse gas recovery usually contain acidic components such as carbon dioxide and hydrogen sulfide. There are many ways to remove acid gas components. The MDEA decarburization process is a decarbonization process based on N-methyldiethanolamine aqueous solution developed by BASF in the early 1970s. 2 craft. This process is different from other deCO2 processes in terms of investment, public works, material consumption, and cost. 2 Compared w...

Examples

Embodiment Construction

[0018] specific implementation plan

[0019] The present invention can be implemented according to the following typical process flow.

[0020] The raw material gas containing acidic gas components enters the absorption tower equipped with packing or trays from the lower part, the absorption treatment agent drips from the top of the tower, and absorbs countercurrently with the raw material gas, and the purified net gas is drawn out from the top of the absorption tower. The absorption treatment agent containing acidic components is discharged from the bottom of the absorption tower, heated by a heat exchanger, and then enters a separator to separate part of the acidic components, and the acidic gas components are sent for further treatment.

[0021] The absorption treatment agent flowing out of the separator is further removed from the acid gas components in the desorption tower. After being cooled and condensed, the acid-rich gas stream from the top of the tower is separated ...

technical field

[0001] The invention relates to a treatment agent for acidic components in mixed gas, including a composition or aqueous solution containing alcohol amine and amide, which is used for the removal and purification of acidic components in mixed gas, and can be applied to natural gas , Fertilizer synthesis gas, petrochemical production, greenhouse gas recovery and other gas treatment processes. Background technique

[0002] At present, the process gases of natural gas, chemical fertilizer synthesis gas, refineries, and greenhouse gas recovery usually contain acidic components such as carbon dioxide and hydrogen sulfide. There are many ways to remove acid gas components. The MDEA decarburization process is a decarbonization process based on N-methyldiethanolamine aqueous solution developed by BASF in the early 1970s. 2 craft. This process is different from other deCO2 processes in terms of investment, public works, material consumption, and cost. 2 Compared w...

Examples

Embodiment Construction

[0018] specific implementation plan

[0019] The present invention can be implemented according to the following typical process flow.

[0020] The raw material gas containing acidic gas components enters the absorption tower equipped with packing or trays from the lower part, the absorption treatment agent drips from the top of the tower, and absorbs countercurrently with the raw material gas, and the purified net gas is drawn out from the top of the absorption tower. The absorption treatment agent containing acidic components is discharged from the bottom of the absorption tower, heated by a heat exchanger, and then enters a separator to separate part of the acidic components, and the acidic gas components are sent for further treatment.

[0021] The absorption treatment agent flowing out of the separator is further removed from the acid gas components in the desorption tower. After being cooled and condensed, the acid-rich gas stream from the top of the tower is separated ...