Composite solution for sulphur dioxide absorption in membrane separation

A compound solution and sulfur dioxide technology, applied in the field of flue gas desulfurization, liquid-gas separation, to achieve the effect of easy purchase, small foaming and high desulfurization rate
CN103341301AInactive Publication Date: 2013-10-09NANJING UNIV OF INFORMATION SCI & TECH
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF INFORMATION SCI & TECH
Publication Date
2013-10-09
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the field of liquid-gas separation, in particular relates to the field of smoke desulfuration, and more in particular relates to a composite solution for absorbing sulphur dioxide in mixed gas. The invention aims at providing a sulphur dioxide absorbent capable of being used for absorption for a membrane contactor. The smoke composite-type desulfurizer disclosed by the invention is composed of the aqueous solution of lactic acid salt and amino acid salt, wherein the mixing molar ratio of the lactic acid salt to the amino acid salt is 1: (0.5 to 2.2). The composite-type desulfurizer disclosed by the invention is good in chemical stability, low in foaminess and low in viscosity, and raw materials are abundant in source, easy to buy and low in price. A desulfuration process using the composite-type desulfurizer disclosed by the invention is high in mass transfer coefficient, undisturbed in gas-liquid flow, low in mass transfer resistance, high in desulfuration rate, convenient to operate, high in operation flexibility, free from secondary pollution, and capable of stably running in the membrane contactor.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of liquid-gas separation, in particular to the field of flue gas desulfurization, and more specifically to a composite solution for absorbing sulfur dioxide in membrane separation.

[0002] Background technique

[0003] SO in the flue gas of coal-fired power plants and metallurgical industries 2 It is one of the main pollutants in the atmosphere and the source of acid rain. With the increasing requirements of environmental protection on the emission of air pollutants, in the flue gas desulfurization purification, how to reasonably select the desulfurization process to achieve SO 2 Emissions in line with the national emission standards is a key issue for the healthy development of flue gas desulfurization in coal-fired power plants and metallurgical industries. Therefore, various high-performance SO 2 The development of absorbents is one of the research topics in this field. In recent years, composite absorbents ha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More