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A method of sweating and producing soap wax and paraffin

A technology for paraffin wax and soap wax, which is applied in the direction of petroleum wax recovery, etc., achieves the effects of accelerating separation speed, low operating cost and simple production process

Active Publication Date: 2017-11-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recovery of low boiling point liquid during constant temperature and sweating process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment includes: (1) preparatory work, (2) charging, (3) cooling and crystallization, (4) heating and sweating, (5) crude product collection, (6) product refining and other processes.

[0041] (1) Preparation

[0042] Connect the sealing system on the upper part of the sweating dish (the angle between the sweating dish plate and the baffle plate is 120°) with the buffer tank and the compressor. The lower part of the sweating dish plate is cushioned with water.

[0043] Connect the jacket of the sweating dish and the movable coil to the circulation system, fix the coil on the sweating dish; use water as the medium; start the heating function of the circulation system to raise the temperature of the circulating water to 45°C.

[0044] (2) Loading

[0045] Use Changsixian wax paste (melting point 41.5°C, oil content 13.2%) as raw material, heat to 45°C to melt and add to the sweating dish; install the sealing system on the upper part of the sweating dish and con...

Embodiment 2

[0056] This embodiment includes: (1) preparatory work, (2) charging, (3) cooling-constant temperature crystallization, (4) heating and sweating, (5) crude product collection, (6) product refining and other processes.

[0057] (1) Preparation

[0058] Connect the sealing system on the upper part of the sweating dish (the angle between the sweating dish plate and the baffle plate is the same as in Example 1) to the buffer tank and the compressor; The system is well connected, with liquid paraffin as the absorption medium.

[0059] The lower part of the sweating dish plate is cushioned with water. Connect the jacket of the sweating dish and the movable coil to the circulation system, fix the coil on the sweating dish; use water as the medium; start the heating function of the circulation system to raise the temperature of the circulating water to 45°C.

[0060] (2) Loading

[0061] Use Changsixian wax paste (same as Example 1) as raw material, heat to 45°C and melt, then add 0...

Embodiment 3

[0074] This embodiment includes: (1) preparatory work, (2) charging, (3) cooling-constant temperature crystallization, (4) heating and sweating, (5) crude product collection, (6) product refining and other processes.

[0075] (1) Preparation

[0076] Install a buffer tank and connect a vacuum pump at the lower part of the sweating dish (the angle between the sweating dish plate and the baffle is 150°). The lower part of the sweating dish plate is cushioned with water.

[0077] Connect the jacket of the sweating dish and the movable coil to the circulation system, and fix the coil on the sweating dish; use water as the medium; start the heating function of the circulation system to raise the temperature of the circulating water to 55°C.

[0078] (2) Loading

[0079] Use minus second-line wax paste (melting point 50.6°C, oil content 21.4%) as raw material, heat to 55°C and melt and add to the sweating dish; install the sealing system on the upper part of the sweating dish and ...

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Abstract

The invention discloses a sweating and soap wax and paraffin producing method. In the method, a sweating apparatus is employed, and on the basis of a common sweating and deoiling process, a low-boiling-point liquid is added to a raw material, and wax and oil are forcedly separated by carrying liquid-phase oil through a wax layer through air flow during a temperature-increased sweating process, thereby improving separation effect and accelerating separation, so that yield of target products is increased and production period is reduced, and also paraffin being about 70 DEG C in melting point can be produced. The method is low in investment, is simple in production process, is low in operation cost and is free of solvent pollution.

Description

technical field [0001] The invention belongs to the technical field of petroleum wax production, in particular to a method for sweating and producing soap wax and paraffin wax. Background technique [0002] Petroleum wax is a general term for various wax products obtained from waxy distillates after refining crude oil, including liquid paraffin, soap wax, paraffin wax and microcrystalline wax. Soap wax and paraffin wax are produced by the steps of dewaxing, deoiling, refining and molding of lubricating oil fractions in crude oil, and generally contain C 20 ~C 30 The normal alkanes, a small amount of isoparaffins and naphthenes and other components usually have a melting point of 40°C to 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G73/36
CPCC10G73/36
Inventor 孙剑锋韩劲松赵威赵咏鹤吴颖
Owner CHINA PETROLEUM & CHEM CORP