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Method for producing soap wax and low melting point paraffin

A low melting point, paraffin technology, applied in the direction of petroleum wax recovery, can solve the problems of long production cycle and low product yield, and achieve the effects of low operating cost, low investment in equipment, and accelerated separation speed.

Active Publication Date: 2017-12-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods still have disadvantages such as low product yield and long production cycle.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment includes: A: emulsification and B: sweating.

[0045] A: emulsification

[0046] This part includes (A1) oil phase material preparation, (A2) water phase material preparation, (A3) emulsion preparation three steps.

[0047] (A1) Oil phase material preparation

[0048] Take Daqing crude oil Changsixian wax paste (melting point 41.5°C, oil content 13.2%) 85.0Kg, heat to 80°C and melt, add sorbitan monooleate 1.6Kg, sorbitan monolaurate 0.8Kg and Polyoxyethylene fatty acid ester 0.6 Kg, stir evenly.

[0049] (A2) Preparation of aqueous phase materials

[0050] Put 0.06Kg of CO at 25.0-25.2 atmospheric pressure (gauge pressure) 2 Dissolve in 11.94Kg of water and heat to 85°C.

[0051] (A3) Emulsion preparation

[0052] Pressurize the oil phase material to 25.0-25.2 atmospheres (gauge pressure), and stir at a speed of 500r / min; add the water phase material to the oil phase material, and continue stirring for 30 minutes to form a water-in-oil emulsion. ...

Embodiment 2

[0068] This embodiment includes: A: emulsification and B: sweating.

[0069] A: emulsification

[0070] This part includes (A1) oil phase material preparation, (A2) water phase material preparation, (A3) emulsion preparation three steps.

[0071] (A1) Oil phase material preparation

[0072] Take 80.0Kg of Daqing crude oil Changsixian wax paste (the properties are the same as in Example 1), heat to 80°C and melt, add 2.5Kg of sorbitan monostearate, 0.6Kg of polyoxyethylene fatty acid ester, lauryl Betaine 0.4Kg, stir evenly.

[0073] (A2) Preparation of aqueous phase materials

[0074] With 27.5% H 2 o 2 solution, solid NaOH and H2 O formulated with H 2 o 2 1.0%, NaOH 6.0 mg / Kg aqueous solution, take 16.5Kg, pressurize to 25.0-25.2 atmospheres (gauge pressure) under nitrogen condition, and heat to 85°C.

[0075] (A3) Emulsion preparation

[0076] Pressurize the oil-phase material to 25.0-25.2 atmospheres (gauge pressure) under nitrogen, and stir at a speed of 800 r / mi...

Embodiment 3

[0081] This embodiment includes: A: emulsification and B: sweating.

[0082] A: emulsification

[0083] This part includes (A1) oil phase material preparation, (A2) water phase material preparation, (A3) emulsion preparation three steps.

[0084] (A1) Oil phase material preparation

[0085] Take 82.5Kg of Daqing crude oil minus second-line wax paste (melting point 50.6°C, oil content 21.4%), heat to 85°C and melt, add 1.5Kg of sorbitan monostearate, 0.7Kg of diethylene glycol monolaurate, Triacetamide oleate 0.3Kg, stir evenly.

[0086] (A2) Preparation of aqueous phase materials

[0087] Put 0.2Kg of CO under 28.0-28.2 atmospheric pressure (gauge pressure) 2 Dissolve in 14.8Kg of water and heat to 90°C.

[0088] (A3) Emulsion preparation

[0089] Pressurize the oil phase material to 28.0-28.2 atmospheres (gauge pressure), and stir at a speed of 400 r / min; add the water phase material to the oil phase material, and continue stirring for 25 minutes to form a water-in-oil ...

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PUM

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Abstract

The invention discloses a method for producing soap wax and low melting point paraffin. On the basis of ordinary sweating and deoiling process, airflows pass through a wax layer and carry away a liquid component in the sweating process so that a solid component and the liquid component are forcibly separated and preferably, the raw material and a water solution containing a substance decomposable into gas are emulsified so that a desired product yield is improved and a production period is shortened. The method has the advantages of low equipment investment, simple production process, low operation cost, safety, energy saving and no solvent pollution.

Description

technical field [0001] The invention belongs to the technical field of petroleum wax production, in particular to a preparation method of soap wax and low-melting paraffin wax. Background technique [0002] Petroleum wax is a general term for various wax products obtained from waxy distillates after crude oil is refined and processed, including liquid paraffin, soap wax, paraffin wax and microcrystalline wax. Soap wax and paraffin are produced by dewaxing, deoiling, refining and molding of lubricating oil fractions in crude oil, and generally contain C 20 ~C 50 Generally, the melting point of soap wax is between 40°C and 52°C, and the melting point of paraffin wax is between 50°C and 74°C. [0003] Dewaxing is a process in which lubricating oil fractions are used as raw materials to prepare wax paste with an oil content of about 10-30%. The dewaxing process mainly includes press dewaxing and solvent dewaxing. Deoiling is the process of preparing crude paraffin with an oil...

Claims

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Application Information

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IPC IPC(8): C10G73/36
CPCC10G73/36
Inventor 孙剑锋杨秀娜张晓晖毕文卓张志银王鑫
Owner CHINA PETROLEUM & CHEM CORP
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