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A method for sweating and preparing wax products with high normal hydrocarbon content and narrow carbon number distribution

A technology of normal hydrocarbon content and content, applied in the refining of petroleum wax, etc., can solve the problem of inability to produce wax products with high normal hydrocarbon content and narrow carbon number distribution, and achieve the effect of enhancing the separation effect.

Active Publication Date: 2017-10-27
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 cannot produce wax products with high normal hydrocarbon content and narrow carbon number distribution

Method used

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  • A method for sweating and preparing wax products with high normal hydrocarbon content and narrow carbon number distribution
  • A method for sweating and preparing wax products with high normal hydrocarbon content and narrow carbon number distribution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment includes: (1) preparation work, (2) charging, (3) cooling - high temperature constant temperature - cooling - low temperature constant temperature crystallization, (4) heating - constant temperature sweating, (5) crude product collection, (6) product Refining and molding, packaging 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 120°) with the buffer tank and the compressor. A buffer tank is installed on the lower part of the sweat dish and a vacuum pump is connected.

[0059] The lower part of the sweating dish plate is cushioned with water.

[0060] Connect the jacket of the sweating dish with a movable coil and a circulation system with programmed cooling / heating function, using water as the heat transfer medium.

[0061] Start the heating function of the circulation system to raise the temperature of the circu...

Embodiment 2

[0083] This embodiment includes: (1) preparation, (2) charging, (3) cooling - high temperature constant temperature - cooling - low temperature constant temperature crystallization, (4) heating - constant temperature sweating, (5) crude product collection and metal particle recovery, (6) Product refining and molding, packaging and other processes.

[0084] (1) Preparation

[0085] Sieve out 20 mesh to 40 mesh lead particles and zinc particles, and mix them evenly at a weight ratio of 1:1.

[0086] Connect the sealing system on the upper part of the sweating dish (the angle between the sweating dish plate and the baffle plate is 150°) with the buffer tank and the compressor. A buffer tank is installed on the lower part of the sweat dish and a vacuum pump is connected.

[0087] Put water on the lower part of the sweating dish; spread double-layer medium-speed filter paper on the bottom of the sweating dish;

[0088] Connect the jacketed sweating dish with a movable coil and a...

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Abstract

The invention discloses a method for sweating and preparing wax products with high normal hydrocarbon content and narrow carbon number distribution. The method adopts a sweating device, and a high-temperature constant temperature stage is added at an appropriate temperature in the cooling process. After the crystallization process is completed, the surface of the wax layer is evenly covered with mixed solid particles, and the forced airflow passes through the wax layer during the sweating process to carry out liquid components. point. The method of the invention has the advantages of low device investment, simple production process, low operating cost, and no solvent pollution; the product has the characteristics of high normal hydrocarbon content and narrow carbon number distribution, and can be used as a wax medium for a thermostat or a phase change wax product.

Description

technical field [0001] The invention belongs to the technical field of special wax production, in particular to a method for sweating and preparing wax products with high normal hydrocarbon content. 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, paraffin and microcrystalline wax. Petroleum wax is generally produced through the steps of dewaxing, deoiling, refining and molding. Liquid paraffin is liquid at room temperature, usually the melting point of paraffin is 52°C to 74°C, and the drop melting point of microcrystalline wax is 65°C to 92°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 wax with an oil content of les...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G73/42
Inventor 孙剑锋张志银姚春雷刘纾言王士新
Owner CHINA PETROLEUM & CHEM CORP