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Recycling utilization method of oil refinery sulfur removal plant sulfur vapor

A technology of sulfur steam and oil refinery, which is applied in the field of recycling and utilization of sulfur steam in the desulfurization workshop of the oil refinery, can solve the problems of non-conformity with the project approval principles of chemical products, negative effects of global warming, environmental pollution, etc., and achieve saving of equipment and storage Freight, low cost, high benefit effect

Active Publication Date: 2017-06-13
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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  • Recycling utilization method of oil refinery sulfur removal plant sulfur vapor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: A method for recycling sulfur steam in the desulfurization workshop of an oil refinery. First, the acid gas from the oil refining system is sent to the Claus unit for sulfur recovery. ℃-500℃ mixed gas, the time for the acid gas to pass through the Claus device is very short, roughly 0.01-0.5s. The acid gas is a compound gas, including hydrogen sulfide, sulfur dioxide, chlorine, hydrogen chloride gas, carbon dioxide, nitrogen monoxide, etc., wherein the ratio of hydrogen sulfide, sulfur dioxide, chlorine gas, hydrogen chloride, carbon dioxide, and nitrogen monoxide gas is: 77.63: 11.76:2.36:1.19:4.22:2.84.

[0024] The mixed gas is cooled by the cooler and captured by the trap 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 vapor is formed at 500-600°C, and then the mixed gas of methane and ethane fr...

Embodiment 2

[0030] Example 2: A method for recycling sulfur steam in the desulfurization workshop of an oil refinery. First, the acid gas from the oil refining system is sent to the Claus unit for sulfur recovery. ℃-500℃ mixed gas, in which the acid gas is a compound gas, including hydrogen sulfide, sulfur dioxide, chlorine gas, hydrogen chloride gas, carbon dioxide, nitric oxide, etc. The mixed gas is cooled by a cooler and captured by a trap to obtain liquid sulfur at 165-170°C; then the liquid sulfur is directly sent to the heating furnace, and the furnace is heated to 600-700°C to form sulfur vapor, and then the sulfur vapor from the oil refining The methane in the system is also heated to 600-700°C by the heating furnace.

[0031] The sulfur vapor heated to 600-700°C in the heating furnace is divided into two paths: one path of sulfur vapor is directly sprayed into the insoluble sulfur reactor, quenched in a carbon disulfide solution containing a composite stabilizer, and crushed to ...

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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 in particular 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 intermediates of chemical materials, as well as solvents and extractants. Insoluble sulfur, also known as: polymeric sulfur, English abbreviation: IS. Used in the manufacture of automobile tires, used in rubber roller products, such as carpets, rubber hoses, tapes, rubber shoes, etc. American Flex monopolizes about 63% of the global market share. The price per ton is about 20,000 yuan, and the global demand for insoluble sulfur is about 1.1 million tons. The market prospect is 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 is seriously polluted, and all the hydrogen sulfide gas produced...

Claims

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Application Information

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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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