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Method for comprehensively utilizing acid sludge under water-free condition

An anhydrous condition, acid residue technology, applied in the direction of solid waste removal, etc., can solve problems such as secondary pollution, achieve the effect of improving asphalt quality and avoiding water pollution

Inactive Publication Date: 2011-08-17
XINJIANG MODERN PETROCHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this technical solution is that it needs to dilute the acid slag with water, and there is a problem of secondary pollution in the process of treatment

Method used

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  • Method for comprehensively utilizing acid sludge under water-free condition
  • Method for comprehensively utilizing acid sludge under water-free condition
  • Method for comprehensively utilizing acid sludge under water-free condition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0042] Store 50 grams of acid residue at 60°C for 4 to 6 days, remove the upper liquid, add 1000 grams of vacuum residue while stirring and heat to 180°C, then it starts to thicken, and at the same time due to SO 3 The volume of the gas expands, continue to stir, and after 10 minutes it begins to become thinner, SO 3 The amount of gas generated decreases, and after 15 minutes, the fluidity of the liquid recovers, and the volume recovers, which is regarded as the end of the reaction, and the product is a high-quality asphalt raw material. See acid slag blending experiment table.

example 2

[0044] Store 50 grams of acid residue naturally for 15 days, remove the upper liquid, add 1000 grams of vacuum residue while stirring and heat to 130 ° C, the acid residue begins to thicken after adding, and at the same time due to SO 3 The volume of the gas expands, continue to stir, and after 30 minutes it begins to become thinner, SO 3 The amount of gas generated is reduced, and after 45 minutes, the fluidity of the liquid is restored, and the volume is restored, which is regarded as the end of the reaction, and the product is a high-quality asphalt raw material. See acid slag blending experiment table.

example 3

[0046] Store 200 grams of acid residue naturally for 15 days, remove the upper liquid, and heat 1000 grams of vacuum residue to 150°C while stirring. After adding the acid residue, it begins to thicken. 3 The volume of the gas expands, continue to stir, and after 20 minutes it begins to become thinner, SO 3 The amount of gas generated is reduced, and after 30 minutes, the fluidity of the liquid is restored, and the volume is restored, which is regarded as the end of the reaction, and the product is a high-quality asphalt raw material. See the acid slag blending experiment table (Table 5) for the reaction process.

[0047] Table 5: Acid residue blending experiment table

[0048]

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Abstract

In the invention, through the reaction of reduced-pressure residual oil and acid sludge, the colloid, asphaltene and the like, which are flocculated by sulfuric acid, in the acid sludge are released from the acid sludge to be used as a raw material for asphalt. The products of the reactions of the oxygen-containing compounds, sulfur-containing compounds, nitrogen-containing compounds, olefins, aromatic hydrocarbons in the reduced-pressure residual oil and sulfuric acid also can be used as raw material for asphalt. Compared with the prior art, in the acid sludge processing process adopted in the invention, the acid sludge is not required to be diluted by water, so a water pollution problem is avoided; meanwhile, the reaction products are all converted into raw materials for asphalt at last, and resources is used effectively.

Description

technical field [0001] The invention relates to a method for comprehensive utilization of acid slag under anhydrous conditions, in particular to a method for treating acid slag as asphalt raw material. Background technique [0002] The production of lubricating oil base oil mainly adopts the production process of wax oil hydrorefining and sulfuric acid-alkali-clay refining (commonly known as "the old three"). Due to its high investment and high safety requirements, wax oil hydrofining is widely used by large petrochemical enterprises; small and medium-sized enterprises still continue to use the "old three" sulfuric acid refining method. The most troublesome thing about the "old three" is the disposal of the sticky black acid slag generated during the production process. [0003] Since the 1960s, people have been studying the methods of acid slag treatment and application, especially the pollution of the environment in the process of acid slag treatment. How to treat acid sl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00
Inventor 谢建新刘锦升
Owner XINJIANG MODERN PETROCHEM IND
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