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Liquefied gas desulfurizing agent

A technology of desulfurization agent and liquefied gas, which is applied in chemical instruments and methods, processing of gas mixtures, and treatment of hydrocarbon oils. It has good synergistic effect, eliminates potential safety hazards, and has no effect of secondary pollution

Inactive Publication Date: 2015-04-22
CHONGQING DIZHIJING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this technology has following problems: 1) can produce a large amount of alkali slag, and alkali slag has serious stench smell, can cause environmental problem; Harmful substances exceed the standard); 3) It takes a lot of manpower and material resources to deal with alkali slag, and there is secondary pollution. Discharging sulfur into the atmosphere in the form of oxides will cause air pollution; 4) There are hidden dangers in operation, When mixing lye, caustic soda and lye are easy to hurt people, and when unloading lye residue, it is easy to cause leakage of liquefied petroleum gas

Method used

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  • Liquefied gas desulfurizing agent

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Embodiment 1. Preparation of liquefied gas desulfurizer

[0041] Liquefied gas desulfurizer, composed of the following components in weight percentage: ZnO: 35-50%, MnO 2 : 35~50%, CaO: 5~15% (ZnO comes from zinc carbonate, MnO 2 It is derived from manganese carbonate, CaO is derived from calcium carbonate), and the balance is carrier, which is composed of 40-65% aluminum hydroxide and 35-60% silicon oxide.

[0042] The preparation method of the above-mentioned liquefied gas desulfurizer is operated according to the following steps:

[0043] 1) Mixing material: Add zinc carbonate, manganese carbonate, calcium carbonate, aluminum hydroxide and silicon oxide into the mixer according to the above weight ratio, and mix.

[0044] 2) Molding: Add the mixture obtained in step 1 into a molding machine for molding, curing for 24 hours, and drying.

[0045] 3) Shaping: Add the dried mixture in step 2 to the shaping machine for shaping.

[0046] 4) Activation: calcining the re...

Embodiment 2

[0047] Embodiment 2, preparation of liquefied gas desulfurizer

[0048] Liquefied gas desulfurizer, composed of the following components in weight percentage: ZnO: 35-50%, MnO 2 : 35~50%, CaO: 5~15% (ZnO is derived from active zinc oxide, MnO 2 It is derived from active manganese oxide, CaO is derived from calcium hydroxide), and the balance is a carrier, which is composed of 40-65% aluminum bohydrate and 35-60% silicon oxide.

[0049] The preparation method of the above-mentioned liquefied gas desulfurizer is operated according to the following steps:

[0050] 1) Mixing material: Add active zinc oxide, active manganese oxide, calcium hydroxide, aluminum hydroxide and silicon oxide into the mixer according to the above weight ratio, and mix.

[0051] 2) Molding: Add the mixture obtained in step 1 into a molding machine for molding, curing for 24 hours, and drying.

[0052] 3) Shaping: Add the dried mixture in step 2 to the shaping machine for shaping.

[0053] 4) Activatio...

Embodiment 3

[0054] Embodiment 3, preparation of liquefied gas desulfurizer

[0055] Liquefied gas desulfurizer, composed of the following components in weight percentage: ZnO: 35-50%, MnO 2: 35-50%, CaO: 10-20% (ZnO is derived from basic zinc carbonate, MnO 2 It is derived from manganese acetate, CaO is derived from calcium acetate), and the balance is carrier, which is composed of 40-65% of aluminum oxide and 35-60% of silicon oxide.

[0056] The preparation method of the above-mentioned liquefied gas desulfurizer is operated according to the following steps:

[0057] 1) Mixing material: Add basic zinc carbonate, manganese acetate, calcium acetate, aluminum oxide and silicon oxide into the mixer according to the above weight ratio, and mix.

[0058] 2) Molding: Add the mixture obtained in step 1 into a molding machine for molding, curing for 24 hours, and drying.

[0059] 3) Shaping: Add the dried mixture in step 2 to the shaping machine for shaping.

[0060] 4) Activation: calcining...

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Abstract

The invention relates to a liquefied gas desulfurizing agent and belongs to the technical field of liquefied gas refining. The liquefied gas desulfurizing agent comprises the following components in percent by weight: 35-50% of ZnO, 35-50% of MnO2, 5-15% of CaO and the balance being a carrier, wherein the carrier comprises the components in percent by weight: 40-65% of aluminum oxide and 35-60% of silicon oxide. The liquefied gas desulfurizing agent has the advantages that the desulfurization rate is high, the removal rate for hydrogen sulfide reaches more than or equal to 99%, the sulfur capacity is more than or equal to 25%, and the removal rate of disulfide converted by an organic-sulfur conversion catalyst is more than or equal to 50%; the compatible and synergistic effects with the organic-sulfur conversion catalyst are good, and the protective effect is stable.

Description

technical field [0001] The invention relates to the technical field of liquefied gas refining in petroleum processing, in particular to a liquefied gas desulfurizer used in a liquefied gas fixed bed non-alkali desulfurization and deodorization system. Background technique [0002] Liquefied petroleum gas is one of the products in the petroleum processing process, and it is also an important raw material for further processing into other products. Refined raw material liquefied petroleum gas is mainly liquefied gas after desulfurization by alcohol amine method. The main components of liquefied gas from the desulfurization unit by alcohol amine method are C3 and C4 components, containing a small amount of hydrogen sulfide and organic sulfur (mainly mercaptan , carbonyl sulfide, carbon disulfide). [0003] At present, the liquefied gas mercaptan conversion catalysts mainly include sulfonated cobalt phthalocyanine and polyphthalocyanine cobalt catalysts, but these two catalysts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/90B01D53/48B01D53/52B01D53/62C10G70/00
Inventor 王喜平顾法明黄代红王永立杜易龙曾荣丽
Owner CHONGQING DIZHIJING TECH
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