Deoiling method for Fischer-Tropsch synthesis wax

A Fischer-Tropsch synthetic wax and deoiling technology, which is applied in the chemical industry, can solve the problems of unsatisfactory effects, no practical application, and no related technologies, etc., and achieve the effects of environmental protection, improved deoiling efficiency, and wide application range

Active Publication Date: 2017-04-05
YASHENTECH CORP
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  • Application Information

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Problems solved by technology

Therefore, methyl ethyl ketone is used as a solvent for Fischer-Tropsch wax deoiling, and the effect is not ideal
[0009] At present, the domestic deoiling process for the production of high melting point paraffin is limited to the laboratory research stage and has no practical application. The domestic solvent deoiling is still based on the traditional mixed solvent deoiling process of methyl ethyl ketone and toluene. There is no related technology for the deoiling of wax to produce high melting point paraffin

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  • Deoiling method for Fischer-Tropsch synthesis wax
  • Deoiling method for Fischer-Tropsch synthesis wax

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Embodiment Construction

[0020] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although, those of ordinary skill in the art can understand that, in each embodiment of the present invention, many technical details are proposed for the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions required by the claims of this application can be realized.

[0021] The first embodiment of the present invention relates to a method of deoiling Fischer-Tropsch synthetic wax. The process flow is as figure 1 with figure 2 As shown, it specifically includes the following steps:

[0022] Step 101, cutting the Fischer-Tropsch synthetic crude wax.

[0023] Specifically, the Fischer-Tropsch crude wax is d...

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Abstract

The present invention relates to the field of chemical industry, and discloses a deoiling method for Fischer-Tropsch synthesis wax. The deoiling method comprises the following steps: a methyl isobutyl ketone solvent is used as a single solvent to dilute oil-bearing Fischer-Tropsch synthesis wax; a solvent-containing crystalline liquid is obtained after a plurality of dilutions and cooling crystallizations; and the crystalline liquid is filtered through a filter to obtain a deoiled cerate, and the product wax is obtained after the deoiled cerate is evaporated and the solvent is recovered. In the embodiment of the present invention, when the method is applied to deoiling of the Fischer-Tropsch wax, the deoiling efficiency is high, the wax yield is relatively high and the filtration speed is fast.

Description

Technical field [0001] The invention relates to the field of chemical engineering, and in particular to a method for deoiling Fischer-Tropsch synthetic wax. Background technique [0002] At present, the domestic paraffin-based crude oil is mainly based on the Daqing and Nanyang oil fields. With the progress of exploitation, the reserves of paraffin-based crude oil are becoming less and less. At the same time, paraffin wax from crude oil has a relatively low melting point due to its own carbon number limitation, and it is difficult to obtain high melting point wax. Petroleum-based paraffin has been greatly restricted in some special industries. The wax produced by the Fischer-Tropsch synthesis process has a wide distribution of carbon numbers, with the highest carbon number often reaching more than 200. At the same time, its composition is relatively simple. The content of normal straight-chain alkanes can reach more than 90%, and the rest are basically branched-chain alkanes. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G73/36
Inventor 袁伟王讯文韩晖毛华平
Owner YASHENTECH CORP
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