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Recovery and utilization method of sulfur steam in desulfurization workshop of refinery

A technology of sulfur steam and oil refinery, which is applied in the field of sulfur steam recovery and utilization in desulfurization workshops of oil refineries, can solve problems such as non-compliance with the principles of chemical product project establishment, negative effects of global warming, equipment corrosion, etc., to save equipment and storage. The effect of freight, low cost, and production cost reduction

Active Publication Date: 2018-09-04
洛阳九成新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, during the production process of the two, the equipment is severely corroded, causing certain pollution to the environment, which has a negative effect on global warming, and does not meet the principles of high-efficiency and energy-saving chemical products.

Method used

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  • Recovery and utilization method of sulfur steam in desulfurization workshop of refinery

Examples

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Effect test

Embodiment 1

[0023] Example 1: A method for the recovery and utilization of sulfur steam in the desulfurization workshop of an oil refinery. Firstly, the acid gas from the refinery system is sent to the Claus device for sulfur recovery, and after treatment at 1100-1200°C, the waste heat boiler obtains 300 For mixed gas of ℃-500℃, the time for acid gas to pass through the Claus device is very short, about 0.01-0.5s. Among them, acid gas is a composite gas, including hydrogen sulfide, sulfur dioxide, chlorine, hydrogen chloride gas, carbon dioxide, nitrogen monoxide, etc. The ratio of hydrogen sulfide, sulfur dioxide, chlorine, hydrogen chloride and carbon dioxide to nitrogen monoxide is 77.63: 11.76:2.36:1.19:4.22: 2.84.

[0024] The mixed gas is cooled by a cooler and trapped to obtain liquid sulfur at 160-165°C. The cooling temperature of the cooler is selected at 160-165°C; then the liquid sulfur is directly sent to the heating furnace, and the heating furnace is heated to Sulfur steam is ...

Embodiment 2

[0030] Example 2: A method for the recovery and utilization of sulfur steam in the desulfurization workshop of an oil refinery. First, the acid gas from the refinery system is sent to the Claus device for sulfur recovery, and after treatment at 1200-1300°C, the waste heat boiler obtains 300 ℃-500 ℃ mixed gas, of which acid gas is a composite gas, including hydrogen sulfide, sulfur dioxide, chlorine, hydrogen chloride gas, carbon dioxide, nitrogen monoxide, etc. The mixed gas is cooled by a cooler and trapped by a trap to obtain liquid sulfur at 165-170°C; then the liquid sulfur is directly sent to the heating furnace, and the heating furnace is heated to 600-700°C to form sulfur vapor, which is then extracted from the oil refinery The methane in the system is also heated to 600-700°C by the heating furnace.

[0031] The sulfur vapor heated to 600-700℃ in the heating furnace is divided into two ways: one sulfur vapor is directly injected into the insoluble sulfur reactor, quenched...

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Abstract

The invention discloses a recycling utilization method of oil refinery sulfur removal plant sulfur vapor, and belongs to the field of fine chemical industry. The recycling utilization method of oil refinery sulfur removal plant sulfur vapor comprises the steps of firstly sending acid gas from an oil refining system into a claus device for sulfur recycling, conducting treatment at 1100-1300 DEG C and conducting heat extraction in a heat recovery steam generator to obtain mixed gas at 300-500 DEG C, and cooling the mixed gas through a cooler and catching the mixed gas through a catcher to obtain liquid sulfur at 160-170 DEG C; then directly sending liquid sulfur into a heating furnace, dividing sulfur vapor which is heated to be at 500-700 DEG C in the heating furnace into two paths, in one path, the sulfur vapor is used for preparing insoluble sulfur with high a heat resistant function, in the other path, sulfur vapor is mixed with methane or mixed gas of mixed gas of methane and ethane, and the mixture is then sent into a sulfur dioxide reactor to prepare carbon disulfide and hydrogen sulfide. According to the recycling utilization method of the oil refinery sulfur removal plant sulfur vapor, comprehensive utilization of energy resources is adopted, thus the production cost of producing the same kind of insoluble sulfur, carbon disulfide, hydrogen sulfide and derivative thiourea of the sulfur vapor is lowered by 33%-37%, the total amount of item investment is reduced by 31%-34%, energy is saved and environment is protected.

Description

Technical field [0001] The invention belongs to the field of fine chemicals, and specifically relates to a method for recycling sulfur steam in a desulfurization workshop of an oil refinery. Background technique [0002] Carbon disulfide is widely used as an intermediate for chemical materials, as well as a solvent and extractant. Insoluble sulfur, also known as: polymerized sulfur, English abbreviation: IS. Used in the manufacture of automobile tires and rubber roller products, such as carpets, hoses, tapes, rubber shoes, etc. America's Flex monopolizes about 63% of the global market share. The price is about 20,000 yuan per ton, and the global insoluble sulfur needs about 1.1 million tons. The market prospects are good. The project belongs to the category of national high-tech industry. [0003] In the prior art, the production process of using sulfur and charcoal to produce carbon disulfide has serious pollution and all the hydrogen sulfide gas produced is discharged into t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B17/12C01B32/75C01B17/16C07C335/02
CPCC01B17/12C01B17/161C07C335/02Y02P20/10Y02P20/129
Inventor 赵水斌赵亮亮赵颖颖
Owner 洛阳九成新材料技术有限公司
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