Method for sweating and preparing soap wax and low-melting-point paraffin

A technology with low melting point and melting point, applied in wax physical treatment, petroleum wax recovery, etc., to achieve the effect of low investment in production equipment, low investment in equipment, and accelerated separation speed

Active Publication Date: 2017-12-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of the invention has the advantages of low investment in production equipment, simple production process, low operating cost, and no solvent pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment includes: A: emulsification and B: sweating.

[0043] A: Emulsification

[0044] This part includes three steps (A1) preparation of oil phase materials, (A2) preparation of water phase materials, and (A3) preparation of emulsions.

[0045] (A1) Preparation of oil phase material: Take Daqing crude oil Changsi line wax paste (melting point 41.5℃, oil content 13.2%) 70.0Kg, heat to 66℃ to melt, add 2.5Kg of sorbitol monooleate, 0.7Kg Sorbitan monolaurate, 0.4Kg lauryl betaine and 2.5Kg palmitoleic acid, stir well.

[0046] (A2) Preparation of water phase material: prepare NaHCO with a concentration of 3.5% 3 Solution, take 23.9Kg and heat to 70°C.

[0047] (A3) Preparation of emulsion: stir the oil phase material prepared in (A1) process at 350 rpm, and add the water phase material prepared in (A2) process to the oil phase material, and continue to stir for 30 minutes to form an oil packet Water emulsion.

[0048] B: sweating

[0049] This part includes four steps: (...

Embodiment 2

[0061] This embodiment includes: A: emulsification and B: sweating.

[0062] A: Emulsification

[0063] This part includes three steps (A1) preparation of oil phase materials, (A2) preparation of water phase materials, and (A3) preparation of emulsions.

[0064] (A1) Preparation of oil phase material: Take 72.0Kg of Daqing crude oil Changsixian wax paste (same as Example 1), heat it to 70°C to melt, add 2.3Kg of sorbitan monostearate and 0.5Kg of polyoxygen Ethylene fatty acid ester, 0.2Kg of triacetamide oleate and 2.0Kg of linoleic acid, stir well.

[0065] (A2) Preparation of water phase material: prepare KHCO with a concentration of 3.1% 3 Solution, take 23.0Kg and heat to 74°C.

[0066] (A3) Emulsion preparation: stir the oil phase material prepared in (A1) process at a speed of 500 rpm, and add the water phase material prepared in (A2) process to the oil phase material, and continue to stir for 20 minutes to form an oil packet Water emulsion.

[0067] B: sweating

[0068] The same...

Embodiment 3

[0071] This embodiment includes: A: emulsification and B: sweating.

[0072] A: Emulsification

[0073] This part includes three steps (A1) preparation of oil phase materials, (A2) preparation of water phase materials, and (A3) preparation of emulsions.

[0074] (A1) Preparation of oil phase material: Take Daqing crude oil minus second-line wax paste (melting point 50.6°C, oil content 21.4%) 82.0Kg, heat to 78°C to melt, add 1.4Kg sorbitol monooleate, 0.4Kg Sorbitan monolaurate, 0.2Kg sodium alkylbenzene sulfonate and 1.0Kg erucic acid, stir well.

[0075] (A2) Preparation of water phase material: prepare K with a concentration of 1.3% 2 CO 3 Solution, take 15.0Kg and heat to 82℃;

[0076] (A3) Preparation of emulsion: Stir the oil phase material prepared in (A1) process at 900 rpm, and add the water phase material prepared in (A2) process to the oil phase material, and continue to stir for 10 minutes to form an oil packet Water emulsion.

[0077] B: sweating

[0078] This part includes...

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Abstract

The invention discloses a method for sweating and preparing soap wax and low-melting-point paraffin. According to the method disclosed by the invention, an oil-soluble emulsifier and oil-soluble acid are dissolved in a sweating raw material to serve as an oil phase material on the basis of an ordinary sweating process, an inorganic salt solution serves as an aqueous phase material and is sweated after emulsification, a tiny space is formed after bubbles and salt solution produced by reaction between the oil-soluble acid and the inorganic salt are discharged, and a channel for discharging oil is formed so as to promote rapid discharge of the oil. Meanwhile, the wax and oil can be forcibly separated by enabling airflow to carry out the liquid oil through a wax layer in the sweating process, so that the yield of the target product is improved, and the production cycle is shortened. The method disclosed by the invention has the advantages of low production equipment investment, simple preparation process, low operating cost, no solvent pollution and the like.

Description

Technical field [0001] The invention belongs to the technical field of petroleum wax production, and particularly relates to a method for sweating and preparing soap wax and low-melting paraffin wax. Background technique [0002] Petroleum wax is a general term for various wax products made from waxy distillates after crude oil has been refined and processed, including liquid paraffin, soap wax, paraffin wax and microcrystalline wax. Soap waxes and paraffins are produced by dewaxing, deoiling, refining and molding of the lubricating oil fraction in crude oil. They generally contain normal paraffins, a small amount of isoparaffins and naphthenes. Usually the melting point of soap wax is at Between 40°C and 52°C, the melting point of paraffin wax is between 50°C and 74°C. [0003] Dewaxing is a process of preparing wax paste with an oil content of about 10-30% from lubricating oil fractions. The dewaxing process mainly includes pressing dewaxing and solvent dewaxing. Deoiling is a ...

Claims

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Application Information

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IPC IPC(8): C10G73/36C10G73/40
CPCC10G73/36C10G73/40
Inventor 孙剑锋李莉张志银陈保莲韩劲松刘纾言
Owner CHINA PETROLEUM & CHEM CORP
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