Desulfurization synergistic additive

A synergistic additive and component technology, applied in other chemical processes, separation methods, dispersed particle separation, etc., can solve the problems of different droplet sizes, blockage of spray devices, and reduced absorption efficiency, so as to achieve enhanced solubility and avoid Effects of glitches and enhanced absorption

Active Publication Date: 2022-04-12
北京中德华信能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this traditional limestone-gypsum wet desulfurization technology, the calcium sulfite and calcium sulfate formed after the calcium-based desulfurizer absorbs sulfur dioxide are very easy to form scaling and blockage in the desulfurization tower and pipeline due to their low solubility. Phenomenon
And in the actual operation process, due to the clogging and fouling of the spray device, the droplet size is different and the absorption efficiency is reduced.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The desulfurization synergist additive in this embodiment is in the form of white crystal powder, and the weight ratio of each component is 30 parts of sodium formate, 25 parts of glutaric acid, 15 parts of succinic acid, 10 parts of sodium acetate and 20 parts of adipic acid. Under normal temperature and pressure and in a dry state, weigh the crystal powders of sodium formate, glutaric acid, succinic acid, sodium acetate and adipic acid respectively according to the weight and number ratios of the above components, and then weigh the crystal powders of each component It can be mixed evenly, and can also be compressed into a solid sheet, which is convenient for use and transportation.

Embodiment 2

[0016] The weight ratio of each component of the desulfurization synergistic additive of the present embodiment is 35 parts of sodium formate, 15 parts of glutaric acid, 10 parts of succinic acid, 5 parts of sodium acetate, 15 parts of adipic acid, and 10 parts of polycarboxylate sodium salt , 10 parts of hydroxyethylidene diphosphonic acid. At normal temperature and pressure and in a dry state, weigh sodium formate, glutaric acid, succinic acid, sodium acetate, adipic acid, polycarboxylate sodium salt, and hydroxyethylidene diphosphonic acid according to the weight and number ratios of the above components. The crystal powder of each component can be mixed evenly, and it can also be compressed into a flake solid, which is light yellow after compression.

Embodiment 3

[0018] The weight ratio of each component of the desulfurization synergist additive in this embodiment is 20 parts of sodium formate, 20 parts of glutaric acid, 12 parts of succinic acid, 8 parts of sodium acetate, 15 parts of adipic acid, 15 parts of polycarboxylate sodium salt, 5 parts of hydroxyethylidene diphosphonic acid, 5 parts of amorphous iron oxyhydroxide. At normal temperature and pressure and in a dry state, weigh sodium formate, glutaric acid, succinic acid, sodium acetate, adipic acid, polycarboxylate sodium salt, and hydroxyethylidene diphosphonic acid according to the weight and number ratios of the above components. , crystal powder of amorphous iron oxyhydroxide, and then mix the crystal powder of each component evenly.

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Abstract

The invention discloses a desulfurization synergistic additive which comprises the following components in parts by weight: 20-35 parts of sodium formate, 15-30 parts of glutaric acid, 10-20 parts of succinic acid, 5-15 parts of sodium acetate, 15-25 parts of adipic acid, 0-20 parts of sodium polycarboxylate, 0-15 parts of 1-hydroxyethylidene-1, 1-diphosphonic acid and 0-5 parts of amorphous iron oxyhydroxide, and the powder of the components is uniformly mixed at normal temperature and normal pressure in a dry state. According to the desulfurization synergistic additive, the solubility of limestone in a liquid phase is improved, the solubility of the limestone is enhanced, the SO2 gas-liquid mass transfer efficiency in the desulfurization reaction process is effectively improved, SO2 absorption is enhanced, the desulfurization reaction speed of the limestone is effectively improved, and the treatment capacity and desulfurization efficiency of a desulfurization system are effectively improved; the cost performance is more prominent, and the long-time safe and stable operation of the desulfurization system is enhanced.

Description

technical field [0001] The invention relates to flue gas desulfurization technology, in particular to a desulfurization synergistic additive for flue gas treatment in fields such as oil fields, natural gas generating enterprises, thermal power plants and petrochemicals. Background technique [0002] Generally, desulfurization and purification treatment is required in the tail gas treatment process of natural gas, oilfield associated gas, synthesis gas and various sulfur-containing tail gases, that is, SO 2 The treatment methods currently used for gas treatment can be divided into three categories: wet, semi-dry, and dry desulfurization processes. Among them, the wet desulfurization technology is relatively mature, with high efficiency and strong adaptability. Limestone (CaCO 3 ), lime (CaO) or sodium carbonate (Na 2 CO 3 ) and other slurries are used as detergents, and the flue gas is washed in the reaction tower to remove SO in the flue gas 2 . However, in this tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50B01D50/20C09K3/00
Inventor 任红胤王子军
Owner 北京中德华信能源科技有限公司
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