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Deodorizing and passivating cleaning agent for oil refining devices

A technology for oil refining equipment and cleaning agents, which can be used in deodorization, detergent compositions, non-surface active detergent compositions, etc., and can solve the problems of ineffective removal of compounds

Active Publication Date: 2012-08-15
王春玲 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the removal effect on small molecule mercaptans, ammonia water and other compounds that cause odor is not obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 1. Mix 180kg of low alkali value sodium hypochlorite, 60kg of ultra-fine sodium silicate and 60kg of HEDP to prepare a deodorant.

[0016] 2. Combine 400kg of low alkali value sodium hypochlorite and 100kg of THPS to prepare passivation agent.

[0017] 3. The above-mentioned 300kg deodorant, 500kg passivator and another 200kg THPS are compounded to prepare the double-effect cleaning agent for deodorization and passivation of the refining unit of the present invention.

[0018] Available chlorine in the low alkali value sodium hypochlorite is 10%, alkali concentration is 0.2%, potassium pyrosulfate is 2.5%, and alkaline corrosion inhibitor is 2.0%;

[0019] After roughly calculating the inner surface area of ​​the device to be cleaned, use 18kg / m 2 The amount of cleaning agent of the present invention is diluted with water. The diluted cleaning agent is added to the dosing tank, and the refining unit to be cleaned is connected to a temporary pipeline to form a circulat...

Embodiment 2

[0022] 1. Mix 195kg of low alkali value sodium hypochlorite, 65kg of ultra-fine sodium silicate and 65kg of HEDP to prepare a deodorant.

[0023] 2. Combine 520kg of low alkali value sodium hypochlorite and 130kg of THPS to prepare passivation agent.

[0024] 3. Compound the above-mentioned 325kg deodorant, 650kg passivator and 227.5kg THPS in addition to prepare the deodorizing passivation double-effect cleaning agent for oil refinery of the present invention.

[0025] Available chlorine in the low alkali value sodium hypochlorite is 8%, alkali concentration is 0.08%, potassium pyrosulfate is 2.5%, and alkaline corrosion inhibitor is 1.8%;

[0026] After roughly calculating the inner surface area of ​​the device to be cleaned, use 10kg / m 2 The amount of cleaning agent of the present invention is diluted with water. The diluted cleaning agent is added to the dosing tank, and the refining unit to be cleaned is connected to a temporary pipeline to form a circulation system. A...

Embodiment 3

[0029] 1. Mix 168kg of low alkali value sodium hypochlorite, 56kg of ultra-fine sodium silicate and 56kg of HEDP to prepare a deodorant.

[0030] 2. Combine 320kg of low alkali value sodium hypochlorite and 80kg of THPS to prepare passivation agent.

[0031] 3. Compound the above-mentioned 280kg deodorant, 400kg passivator and another 180kgTHPS to prepare the deodorizing passivation double-effect cleaning agent for oil refinery of the present invention.

[0032] Available chlorine in the low alkali value sodium hypochlorite is 12%, alkali concentration is 0.35%, potassium pyrosulfate is 3.5%, and alkaline corrosion inhibitor is 2.2%;

[0033] After roughly calculating the internal surface area of ​​the device to be cleaned, use 25kg / m 2 The amount of cleaning agent of the present invention is diluted with water. The diluted cleaning agent is added to the dosing tank, and the refining unit to be cleaned is connected to a temporary pipeline to form a circulation system. Accor...

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PUM

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Abstract

A deodorizing and passivating cleaning agent for oil refining devices belongs to the technical field of device cleaning agents and is characterized by including (in weight): 20 parts of passivator, 10-14 parts of deodorant, 7-9 parts of active components, wherein the deodorant is compounded by low-alkali sodium hypochlorite, ultrafine sodium silicate and glyoxal diamine, the active components aretetrakis hydroxymethyl phosphonium sulfate (THPS) compound, and the passivator is low-alkali sodium hypochlorite and THPS. Compared with the prior art, the deodorizing and passivating double-effect cleaning agent for the oil refining devices has two functions of deodorizing and passivating, and two effects of deodorizing and passivating can be realized by one-step cleaning process during use of the oil refining devices. Equipment can be cleaned at normal temperature and normal pressure during use, heating is omitted and safety and convenience are achieved.

Description

technical field [0001] The invention discloses a deodorizing and passivating double-effect cleaning agent for an oil refinery, belonging to the technical field of cleaning agents for equipment. Background technique [0002] When the refinery is refining high-sulfur crude oil, the sulfide in the crude oil will produce a large amount of ferrous sulfide under high temperature conditions, especially under the action of the catalyst. The ferrous sulfide is adsorbed on the equipment and pipelines of the refinery. When the equipment is opened, ferrous sulfide contacts with oxygen in the air to undergo a strong oxidation-reduction reaction and release a lot of heat. After the heat accumulates, it will cause spontaneous combustion, causing fire and explosion accidents. Currently commonly used ferrous sulfide passivation cleaning agents are mainly organic chelating type, acid type, alkaline, oxidizing agent (mainly potassium permanganate, hydrogen peroxide, sodium hypochlorite, chlori...

Claims

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Application Information

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IPC IPC(8): C11D7/36C23C22/03A61L9/013
Inventor 王春玲刘鲁暾
Owner 王春玲
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