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 su

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] Example 1

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

[0045] A: Emulsification

[0046] This part includes three steps (A1) preparation of oil phase materials, (A2) preparation of water phase materials, and (A3) preparation of emulsions.

[0047] (A1) Preparation of oil phase materials

[0048] Take Daqing crude oil constant fourth line wax paste (melting point 41.5℃, oil content 13.2%) 85.0Kg, heat to 80℃ to melt, add 1.6Kg sorbitan monooleate, 0.8Kg sorbitan monolaurate and 0.6 Kg of polyoxyethylene fatty acid ester, stir evenly.

[0049] (A2) Preparation of water phase material

[0050] Under 25.0~25.2 atmospheres (gauge pressure), 0.06Kg of CO 2 Dissolve in 11.94Kg of water and heat to 85°C.

[0051] (A3) Preparation of emulsion

[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-...

Example Embodiment

[0067] Example 2

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

[0069] A: Emulsification

[0070] This part includes three steps (A1) preparation of oil phase materials, (A2) preparation of water phase materials, and (A3) preparation of emulsions.

[0071] (A1) Preparation of oil phase materials

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

[0073] (A2) Preparation of water phase material

[0074] With 27.5% H 2 O 2 Solution, solid NaOH and H 2 O preparation containing 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, and heat to 85°C.

[0075] (A3) Preparation of emulsion

[0076] Pressurize the oil phase material to 25.0-25.2 atmospheres (gauge pressure) under nitrogen and stir at a speed o...

Example Embodiment

[0080] Example 3

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

[0082] A: Emulsification

[0083] This part includes three steps (A1) preparation of oil phase materials, (A2) preparation of water phase materials, and (A3) preparation of emulsions.

[0084] (A1) Preparation of oil phase materials

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

[0086] (A2) Preparation of water phase material

[0087] Under 28.0~28.2 atmospheres (gauge pressure), 0.2Kg of CO 2 Dissolve in 14.8Kg of water and heat to 90°C.

[0088] (A3) Preparation of emulsion

[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 emulsi...

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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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