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A kind of method of producing high melting point wax by Fischer-Tropsch synthesis product

A technology of Fischer-Tropsch synthesis and high melting point, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrogenation process, etc. It can solve the problem of low color number of the product, and achieve the effect of simple process flow, large operation flexibility and easy operation

Active Publication Date: 2016-12-07
YANKUANG ENERGY R&D CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a Fischer-Tropsch wax product that produces a variety of high-melting point wax products in order to overcome the defects of the above-mentioned prior art, and solves the problem that the color number of the product is too low due to thermal coking of the material during the separation process. Process for producing high melting point waxes from synthetic products

Method used

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  • A kind of method of producing high melting point wax by Fischer-Tropsch synthesis product

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Effect test

Embodiment 1

[0036] A kind of method of producing high melting point wax by Fischer-Tropsch synthesis product, technological process is as figure 1As shown, the raw material stream 1 is a Fischer-Tropsch synthetic wax stream, and its properties are shown in Table 1. First, it enters the first distillation unit A. Under the conditions of 150 ° C and 2.5 Pa, the stream is divided into a wax oil fraction stream 2 and a heavy fraction stream 3. The distillate stream 3 enters the second distillation unit B. Under the conditions of 240°C and 2.2Pa, the stream is divided into a medium wax stream 4 and a high melting point wax stream 5; Co / Mo-Al 2 o 3 Catalyst, under the conditions of 300°C and 5MPa, high melting point wax 7 was obtained. The high melting point wax 7 is divided into two streams of the first stream 8 and the hydrogenated high melting point wax stream 9, the first stream 8 is used as No. 100-104 wax; the hydrogenated high melting point wax stream 9 enters the third distillation un...

Embodiment 2

[0040] A kind of method of producing high melting point wax by Fischer-Tropsch synthesis product, technological process is as figure 1 As shown, the raw material stream 1 is a Fischer-Tropsch synthetic wax stream, which first enters the first distillation unit A, and under the conditions of 180 ° C and 40 Pa, the stream is divided into a wax oil fraction stream 2 and a heavy fraction stream 3, and the heavy fraction stream 3 enters the second distillation unit A. Distillation unit B, under the conditions of 240 ° C and 10 Pa, divides the stream into medium wax stream 4 and high melting point wax stream 5; high melting point wax stream 5 enters hydrofining unit C, and the Co / Mo-Al 2 o 3 Catalyst, under the conditions of 320°C and 6MPa, high melting point wax 7 was obtained. The high melting point wax 7 is divided into two streams, the first stream 8 and the hydrogenated high melting point wax stream 9, the first stream 8 is used as No. 100-104 wax; the hydrogenated high meltin...

Embodiment 3

[0044] A kind of method of producing high melting point wax by Fischer-Tropsch synthesis product, technological process is as figure 1 As shown, the raw material stream 1 is a Fischer-Tropsch synthetic wax stream, which first enters the first distillation unit A, and under the conditions of 130 ° C and 2.5 Pa, the stream is divided into a wax oil fraction stream 2 and a heavy fraction stream 3, and the heavy fraction stream 3 enters the first distillation unit A. The second distillation unit B, under the conditions of 230 ° C and 1.5 Pa, divides the stream into medium wax stream 4 and high melting point wax stream 5; 2 o 3 Catalyst, under the conditions of 290°C and 5MPa, high melting point wax 7 was obtained. The high melting point wax 7 is divided into two streams, the first stream 8 and the hydrogenated high melting point wax stream 9, the first stream 8 is used as No. 100-104 wax; the hydrogenated high melting point wax stream 9 enters the third distillation unit D, at 28...

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Abstract

The invention relates to a method for producing high-melting-point wax through a fischer-tropsch synthesis product. A raw material flow enters a first distillation unit first and is distilled under certain temperature and pressure to be separated into a wax oil fraction flow and a heavy fraction flow; the heavy fraction flow enters a second distillation unit and is distilled under certain temperature and pressure to be separated into medium wax flow and a high-melting-point wax flow; the high-melting-point wax flow and a hydrogen flow enters a hydrogeneration refinement unit, and the high-melting-point wax after hydrogeneration is separated into a first material flow and a hydrogenerated high-melting-point wax flow; the hydrogenated high-melting-point wax flow enters a third distillation unit and is distilled under certain temperature and pressure to be separated into a first high-melting-point wax flow and a second high-melting-point wax flow. With the adoption of the method, various high-melting-point wax products are produced, and the problem that the color number of a product is excessively small due to heat coking in the separation process of materials is solved.

Description

technical field [0001] The invention relates to the field of Fischer-Tropsch synthesis wax separation and processing, in particular to a method for producing high melting point wax from Fischer-Tropsch synthesis products. Background technique [0002] Wax is a mixture of normal alkanes that is solid at room temperature. It is widely used in packaging industry, automobile protection and anticorrosion, explosives production, plate production, printing ink, rubber industry, hot melt adhesive, pharmaceutical industry, plant water retention in agriculture, fruit preservation, etc. Candles and daily chemical products and other fields. [0003] At present, most waxes on the market are produced from mineral oil. Lubricating oil fractions are separated from petroleum after atmospheric and vacuum distillation. The lubricating oil fractions are dewaxed and decondensed to improve quality while producing paraffin by-products. After refining and modification, different types and models o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02
Inventor 孙启文杨正伟张宗森
Owner YANKUANG ENERGY R&D CO LTD
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