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Fischer-Tropsch synthesis wax refinement method

A technology of Fischer-Tropsch synthesis wax and refining method, which is applied in the direction of petroleum wax refining, etc., and can solve the problems of polymerization and oxidation reaction, inability to effectively remove crude wax lipids, etc.

Inactive Publication Date: 2013-02-13
苏喜红
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the crude wax synthesized by Fischer-Tropsch contains a small amount of alcohols, ketones, fats and other oxygen-containing substances and olefin impurities, which are prone to polymerization and oxidation reactions. The usual hydrogenation method cannot effectively remove the lipids in the crude wax.

Method used

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Embodiment Construction

[0016] The method of the invention includes equipment such as a sweat tank, a raw material pump, a circulating water system, and the like. After the crude wax component from the Fischer-Tropsch synthesis system is hydrogenated and refined, the 370-420°C component, 400-450°C component, 420-480°C component and 450-500°C component are firstly transported by the raw material pump to the corresponding sweat tank. Cooling water is passed into the lower part of the sweat tank for cooling, and then heating is carried out after reaching the cooling temperatures of 30-50°C, 35-70°C, 40-80°C and 45-85°C respectively. The operating pressure of the above-mentioned sweat tank is 0.05-0.60Mpa. The lipids and part of the low-melting point wax contained in the wax layer melt and flow into the respective storage tanks by gravity. After the heating and constant temperature is over, the hot water circulation is used to flow the melt in the sweating tank into the finished product tank.

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Abstract

The invention relates to a Fischer-Tropsch synthesis wax refinement method, which comprises that: a crude wax component from a Fischer-Tropsch synthesis system is subjected to hydrogenation refinement, and then is conveyed to a sweating tank through a raw material pump, sweating is performed to remove lipid materials in the wax component, and the obtained material enters the next process device. According to the method, the sweating process is adopted to remove the lipid materials in the wax component, such that characteristics of simple process, low energy consumption and environment protection are provided; and candles produced by the raw material refined by the method have characteristics of smooth appearance, no toxicity, no odor and no smoke during burning, and no harm on human body.

Description

Technical field [0001] The invention belongs to the technical field of Fischer-Tropsch synthesis, and in particular relates to a method for refining Fischer-Tropsch synthesis wax. Background technique [0002] The raw materials for making existing candles are mainly paraffin wax extracted from petroleum and a mixture based on paraffin wax, and some auxiliary materials are added accordingly. Such as CN1478876A, CN1415720A, CN1665887A, etc. At present, oil resources are becoming increasingly tense and prices are rising, and the requirements for candle raw materials are becoming more and more green and environmentally friendly with low cost and low pollution. The crude wax of Fischer-Tropsch synthesis is a high-carbon saturated aliphatic hydrocarbon produced from the Fischer-Tropsch synthesis process. The wax does not contain aromatics, sulfur, nitrogen, etc., and is an ideal environmentally friendly candle raw material. However, the crude wax synthesized by Fischer-Tropsch c...

Claims

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Application Information

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IPC IPC(8): C10G73/42
Inventor 苏喜红
Owner 苏喜红
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