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Phase-change paraffin preparation method

A technology of phase change wax and raw material gas, which is applied in the field of medicine and chemical industry, can solve the problems of excess low-end wax products, scarcity of high-end wax products, hidden dangers of production safety, etc., and achieve the effects of reducing pollution, reducing blind production, and low temperature

Inactive Publication Date: 2016-04-20
SHANXI LUAN COAL BASED SYNTHETIC OIL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is a surplus of low-end wax products at home and abroad in the phase change wax industry, while high-end wax products are scarce, and the traditional phase change wax preparation methods are all prepared from petroleum fractionation components, which often have complex processes and high costs. There are safety hazards in production

Method used

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  • Phase-change paraffin preparation method

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Effect test

Embodiment 1

[0018] A method for preparing phase-change wax, comprising the following steps: synthetic feed gas (a mixture of H2 and CO, with a hydrogen-to-carbon ratio of 1.5:1-2.0:1) produced by coal gasification, at 220°C and 3.0MPa Under the conditions, the raw material gas enters the slurry bed reactor, and under the action of the iron-based catalyst (IGC-IAR, developed by the Institute of Coal Chemistry, Chinese Academy of Sciences), a Fischer-Tropsch synthesis reaction occurs to obtain Fischer-Tropsch synthesis products (including light distillate oil, heavy distillate oil , heavy wax and other oxygen-containing compounds); at 8.0MPa and 280°C, the Fischer-Tropsch synthesis product is hydrogenated (the required catalyst is ICR-154 produced by Chevron Corporation) to obtain a wider fraction The mixture is Fischer-Tropsch synthetic wax; Fischer-Tropsch synthetic wax, under the conditions of 0.5MPa and 230°C, undergo molecular short distillation and rectification to obtain refined wax p...

Embodiment 2

[0020] A kind of phase change wax preparation method, comprises the steps: the synthetic raw material gas (H 2 and CO, the ratio of hydrogen to carbon is 1.5:1-2.0:1), at 220°C and 3.0MPa, the feed gas enters the slurry bed reactor, and the iron-based catalyst (IGC-IAR, developed by the Institute of Coal Chemistry, Chinese Academy of Sciences) The Fischer-Tropsch synthesis reaction occurs under the action of Fischer-Tropsch synthesis to obtain Fischer-Tropsch synthesis products (including light distillate oil, heavy distillate oil, heavy wax and other oxygen-containing compounds); Hydrogenation reaction (the required catalyst is FF26 produced by Fushun Petrochemical Research Institute) to obtain a mixture with a wider fraction, namely Fischer-Tropsch synthetic wax; Fischer-Tropsch synthetic wax, under the condition of 0.5MPa and 280°C, carry out molecular short distillation Distillation to obtain refined wax products with different phase change enthalpy values; adding NNO, the...

Embodiment 3

[0022] A kind of phase change wax preparation method, comprises the steps: the synthetic raw material gas (H 2 and CO, the hydrogen-to-carbon ratio is 1.5:1-2.0:1), at 220°C and 3.0MPa, the feed gas enters the slurry bed reactor, under the action of the iron-based catalyst (IGCIAR, developed by the Institute of Coal Chemistry, Chinese Academy of Sciences) The Fischer-Tropsch synthesis reaction occurs under the condition of Fischer-Tropsch synthesis to obtain Fischer-Tropsch synthesis products (including light distillate oil, heavy distillate oil, heavy wax and other oxygenated compounds); Reaction (required catalyzer is the KF-848 that Akesu company produces), obtains the mixture that cut is wider, i.e. Fischer-Tropsch synthetic wax; Fischer-Tropsch synthetic wax, at 0.5MPa, under 260 ℃ of conditions, carry out molecular short distillation, Refined wax products with different phase change enthalpy values ​​are obtained; NNO is added at an additive ratio of 10 ppm / kg to obtain ...

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Abstract

The invention relates to a phase-change paraffin preparation method, and belongs to the technical field of pharmaceutical and chemical engineering. The phase-change paraffin preparation method is simple in technology; by means of the method, demand-based customized production can be achieved, waste can be reduced, cost can be lowered, and economic benefits can be effectively increased. According to the technical scheme, the phase-change paraffin preparation method includes the following steps that coal is subjected to gasification production to obtain synthesis feed gas, the feed gas is subjected to a Fischer-Tropsch synthesis reaction to obtain Fischer-Tropsch synthesis products, the Fischer-Tropsch synthesis products are subjected to a hydrogenation reaction to obtain a wide-fraction mixture, namely, Fischer-Tropsch synthesis paraffin, the Fischer-Tropsch synthesis paraffin is subjected to molecular short steaming and rectification to obtain refined paraffin products with different phase change enthalpy values, and NNO is added to obtain stable phase-change paraffin.

Description

technical field [0001] The invention relates to a preparation method of phase change wax, which belongs to the technical field of medicine and chemical industry. Background technique [0002] Phase change energy storage materials refer to materials that can absorb or release heat within a certain temperature range, so as to achieve energy storage and controllable release. Traditional phase change materials store and release energy through solid-liquid phase transition. When the material is in liquid state, it must be sealed and packaged in a container. Not only is it easy to leak, it increases the thermal resistance between the heat transfer medium and the phase change material, and the phase change energy storage material contains organic bases, inorganic acids, water and other components. Certainly corrosive. [0003] The special wax for phase change energy storage materials is a special wax with a phase change temperature of 20-80°C. Phase change wax is an excellent org...

Claims

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Application Information

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IPC IPC(8): C09K5/06C10G73/42
CPCC09K5/063C10G73/42
Inventor 刘俊义肖伟崔丽梅裴慧霞赵月占张国富杨见华韩世良
Owner SHANXI LUAN COAL BASED SYNTHETIC OIL
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