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Method for improving solidifying point of Fischer-Tropsch wax

A technology of freezing point and Fischer-Tropsch wax, which is applied in the direction of petroleum wax recovery, etc., can solve the problems of low melting point and low melting point that cannot be applied to special industries or industries with high requirements, and achieve high melting point and hardness, low melt viscosity and good stability Effect

Inactive Publication Date: 2014-08-13
SHANXI LUAN MINING GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to production process restrictions and foreign technical barriers, the current domestic high melting point specialty wax market is basically monopolized by multinational companies such as Shell and Sasol.
The current domestic waxes are mainly prepared from petroleum through evaporative distillation, and generally have a low melting point, so they cannot be used in some special industries or industries with high requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Select a typical light oil product prepared by indirect coal liquefaction as raw material, whose properties are shown in Table 1, and prepare 97# melting point wax that meets international standards. The process conditions adopted are: the feed pump continuously feeds the raw material into the evaporator at 100L / h, heats it to 300°C through the heat conduction oil, and makes the oil components and other low boiling point substances heated and evaporated when the reaction pressure is 1000Pa (absolute pressure). After the coal-based synthetic oil from which oil components and other low boiling point substances have been removed enters the distiller, under high temperature and high vacuum, the coal-based synthetic oil product is heated and evaporated, and is condensed and captured in the condenser to obtain the target product. The conditions are: reaction pressure: 1Pa (absolute pressure), reaction temperature: 300°C, the main performance indicators of the obtained 97# melt...

Embodiment 2

[0033] Select a typical light oil product prepared by indirect coal liquefaction as raw material, its properties are shown in Table 3, and prepare 80# special high melting point refined wax. The process conditions adopted are: the feed pump continuously feeds the raw material into the evaporator at 100L / h, heats it to 300°C through the heat conduction oil, and makes the oil components and other low boiling point substances heated and evaporated when the reaction pressure is 1000Pa (absolute pressure). After the coal-based synthetic oil from which oil components and other low boiling point substances have been removed enters the distiller, under high temperature and high vacuum, the coal-based synthetic oil product is heated and evaporated, and is condensed and captured in the condenser to obtain the target product. The conditions are: reaction pressure: 1Pa (absolute pressure), reaction temperature: 300°C, the main performance indicators of the obtained 97# melting point wax ar...

Embodiment 3

[0040] Select a typical light oil product prepared by indirect coal liquefaction as raw material, its properties are shown in Table 5, and prepare 105# special high melting point refined wax. The process conditions adopted are: the feed pump continuously feeds the raw material into the evaporator at 100L / h, heats it to 300°C through the heat conduction oil, and makes the oil components and other low boiling point substances heated and evaporated when the reaction pressure is 1000Pa (absolute pressure). After the coal-based synthetic oil from which oil components and other low boiling point substances have been removed enters the distiller, under high temperature and high vacuum, the coal-based synthetic oil product is heated and evaporated, and is condensed and captured in the condenser to obtain the target product. The conditions are: reaction pressure: 1Pa (absolute pressure), reaction temperature: 300°C, the main performance indicators of the obtained 97# melting point wax a...

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Abstract

The invention relates to a method for preparing high-melting-point refined wax capable of being applied to plastics, rubber processing, wood processing, food processing and other industries and particularly relates to a method for improving the solidifying point of Fischer-Tropsch wax. According to the method for preparing high-melting-point refined wax with excellent performances, distillation refining is carried out on light-weight oil serving as a raw material by means of continuous high-vacuum distillation, wherein the light-weight oil is produced by indirect coal liquefaction; According to the technical scheme, the method comprises two steps, namely, firstly, feeding the raw material in an evaporator by a feed pump so as to heat and evaporate the oil components and other low-boiling-point substances under the conditions of high temperature and high vacuum degree; secondly, feeding the coal-based synthetic oil without oil components and other low-boiling-point substances into a distiller, heating and evaporating the coal-based synthetic oil products by using heat-conduction oil under extremely high vacuum condition, condensing and capturing in a condenser to obtain the target product. The method disclosed by the invention can be widely used in the field of chemical industry.

Description

technical field [0001] The invention relates to a method for preparing high-melting-point refined wax that can be applied to industries such as plastics, rubber processing, wood processing, and food processing, in particular to a method for increasing the freezing point of Fischer-Tropsch wax. Background technique [0002] High melting point special waxes are widely used in plastics, rubber processing, wood processing, food processing and other industries. However, due to production process restrictions and foreign technical barriers, the current domestic high-melting point special wax market is basically monopolized by multinational companies such as Shell and Sasol. The current domestic waxes are mainly prepared from petroleum through evaporative distillation, and generally have a low melting point, so they cannot be used in some special industries or industries with high requirements. Therefore, the production of high melting point refined wax is an inevitable requiremen...

Claims

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Application Information

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IPC IPC(8): C10G73/02
Inventor 刘俊义葛振宇张力张春风黄开华栗少卿肖伟李亮
Owner SHANXI LUAN MINING GRP
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