Desulfurization absorption liquid capable of saving energy and reducing consumption

Abstract

The invention belongs to the field of gas purification, and specifically relates to a desulfurization absorption liquid capable of saving energy and reducing consumption. The desulfurization absorption liquid is composed of alcohol amine, an activator, and deionized water; wherein the concentration of alcohol amine is 15 to 35 %(wt), and the concentration of the activator is 5 to 15 %(wt). Compared with the conventional alcohol amine solvent, the provided absorption liquid has the characteristics of strong absorbing and regenerating performance, large capacity for absorbing acidic gas, small circulation amount, and low energy consumption, can save the energy, and thus increases the economic benefits.

Description

technical field

[0001] The invention belongs to the field of gas purification, and in particular relates to a desulfurization absorbing liquid capable of saving energy and reducing consumption. Background technique

[0002] The alkanolamine method has been used to remove H from the feed gas of natural gas, petroleum and its processing industry. 2 The mainstream method of S. In recent decades, the amine process has continued to develop and has made great progress, forming a variety of alternative amine desulfurization and decarburization solutions, such as monoethanolamine, diethanolamine, triethanolamine, methyl monoethanolamine and methyldiethanolamine, etc. . The solvent regeneration process adopts the conventional steam stripping regeneration method, and the heat source of the reboiler at the bottom of the regeneration tower adopts low-pressure steam. This scheme is a commonly used process scheme, with mature technology, low investment and simple operation. At present,...

Examples

Embodiment

[0013] Implementation examples: such as figure 1 shown. Test conditions: solution absorbs H 2 After S, control the temperature at 105°C, mechanically stir at 150rpm, and measure the H in the solution after a certain period of time. 2 S content, total acid gas content. Analytical method used in the test: liquid phase H 2 The iodometric method is used for S, and the gas generation method is used for liquid-phase acid gas.

technical field

[0001] The invention belongs to the field of gas purification, and in particular relates to a desulfurization absorbing liquid capable of saving energy and reducing consumption. Background technique

[0002] The alkanolamine method has been used to remove H from the feed gas of natural gas, petroleum and its processing industry. 2 The mainstream method of S. In recent decades, the amine process has continued to develop and has made great progress, forming a variety of alternative amine desulfurization and decarburization solutions, such as monoethanolamine, diethanolamine, triethanolamine, methyl monoethanolamine and methyldiethanolamine, etc. . The solvent regeneration process adopts the conventional steam stripping regeneration method, and the heat source of the reboiler at the bottom of the regeneration tower adopts low-pressure steam. This scheme is a commonly used process scheme, with mature technology, low investment and simple operation. At present,...

Examples

Embodiment

[0013] Implementation examples: such as figure 1 shown. Test conditions: solution absorbs H 2 After S, control the temperature at 105°C, mechanically stir at 150rpm, and measure the H in the solution after a certain period of time. 2 S content, total acid gas content. Analytical method used in the test: liquid phase H 2 The iodometric method is used for S, and the gas generation method is used for liquid-phase acid gas.

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