Method for producing microcrystalline wax from Fischer-Tropsch synthesis crude wax

A technology of Fischer-Tropsch synthesis and microcrystalline wax, which is applied in the refining of petroleum wax, can solve the problems of increasing processing costs, harsh cracking process conditions, and reducing the value of wax products, achieving the effect of reducing processing costs and increasing added value

Active Publication Date: 2014-12-03
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when cracking Fischer-Tropsch synthetic crude wax into gasoline and diesel products, the cracking process conditions are relatively harsh; and according to investigations, the price of diesel per ton on the market is between 8600 and 8700 yuan, while the price of Fischer-Tropsch synthetic crude wax per ton is The price is between 8,000 and 9,000 yuan, so that the cracking process not only reduces the product value of the wax, but also increases the processing cost

Method used

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  • Method for producing microcrystalline wax from Fischer-Tropsch synthesis crude wax
  • Method for producing microcrystalline wax from Fischer-Tropsch synthesis crude wax
  • Method for producing microcrystalline wax from Fischer-Tropsch synthesis crude wax

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Effect test

Embodiment 1

[0036] according to figure 2 The process flow processes the raw material. Using FZC-100, FZC-102B, FZC-103, FZC-204 demetallization catalysts, under the conditions of temperature 240 °C and pressure 2.0 MPa, the Fischer-Tropsch synthesis crude wax was subjected to demetallization reaction treatment to obtain demetallization crude wax ;

[0037] For demetallized crude wax, the pressure is 2.0MPa, the temperature is 240°C, the hydrogen-to-wax ratio is 600v / v, and the volume space velocity is 2h -1 Under certain conditions, the hydrofinishing reactor is carried out to remove oxygen-containing compounds and olefins to obtain hydrofinishing products.

[0038] The hydrorefined product is subjected to hot high-pressure separation, cold high-pressure separation, hot low-pressure separation, and cold low-pressure separation in sequence to separate hydrogen, remove light oil, and obtain heavy component liquid wax; the temperature of hot high-fraction separation is 160°C, The pressur...

Embodiment 2

[0041] according to figure 2 The process flow processes the raw material. Using RG-10, RG-10A, RG-10B, RDM-2 demetallization catalysts, under the conditions of temperature 280 °C and pressure 4.0 MPa, the Fischer-Tropsch synthesis crude wax is subjected to demetallization reaction treatment to obtain demetallization crude wax ;

[0042] For demetallized crude wax, the pressure is 4.0MPa, the temperature is 280°C, the hydrogen-to-wax ratio is 1000v / v, and the volume space velocity is 6h -1 Under certain conditions, the hydrofinishing reactor is carried out to remove oxygen-containing compounds and olefins to obtain hydrofinishing products.

[0043] The hydrorefined product is subjected to hot high-pressure separation, cold high-pressure separation, hot low-pressure separation, and cold low-pressure separation in sequence to separate hydrogen, remove light oil, and obtain heavy component liquid wax; the temperature of hot high-fraction separation is 180°C, The pressure is 4....

Embodiment 3

[0046] according to figure 2 The process flow processes the raw material. Using FZC-100, FZC-102B, FZC-103, FZC-204 demetallization catalysts, under the conditions of temperature 400 ℃ and pressure 10.0MPa, the Fischer-Tropsch synthesis crude wax is subjected to demetallization reaction treatment to obtain demetallization crude wax ;

[0047] For demetallized crude wax, the pressure is 10.0MPa, the temperature is 400°C, the hydrogen-to-wax ratio is 1500v / v, and the volume space velocity is 10h -1 Under certain conditions, the hydrofinishing reactor is carried out to remove oxygen-containing compounds and olefins to obtain hydrofinishing products.

[0048] The hydrorefined product is subjected to thermal high-pressure separation, cold high-pressure separation, hot low-pressure separation, and cold low-pressure separation in sequence to separate hydrogen, remove light oil, and obtain heavy component liquid wax; the temperature of thermal high-fraction separation is 240°C, Th...

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Abstract

The invention discloses a method for producing microcrystalline wax from Fischer-Tropsch synthesis crude wax. The method comprises the following steps of S1, carrying out metal removal treatment on Fischer-Tropsch synthesis crude wax to obtain metal-removed crude wax; S2, carrying out hydrorefining treatment on the metal-removed crude wax to obtain a hydrorefined product; and S3, carrying out separation treatment on the hydrorefining product to obtain the microcrystalline wax. The microcrystalline wax is produced from the Fischer-Tropsch synthesis crude wax as a raw material, steps of removing sulfur, nitrogen, aromatics and other impurities are not needed, a metal catalyst entrained in the Fischer-Tropsch synthesis crude wax is directly removed and then the hydrorefining treatment is carried out, and the light-wax component in the hydrorefined product is separated out to obtain the microcrystalline wax with low content of oil and fewer sulfur, nitrogen, oxygen and metal impurities components. The method disclosed by the invention provides a novel processing process for the Fischer-Tropsch synthesis crude wax, the processing cost can be reduced and the additional value of the Fischer-Tropsch synthesis crude wax can be improved.

Description

technical field [0001] The invention relates to the field of deep processing of Fischer-Tropsch synthetic crude wax, in particular to a method for producing microcrystalline wax from Fischer-Tropsch synthetic crude wax. Background technique [0002] With the depletion of the world's limited oil resources and the increasing awareness of environmental protection, research and search for environmentally friendly alternatives to oil energy have become one of the directions of world technology development. Biomass, coal and natural gas conversion technology is one of the important ways to solve the shortage of petroleum resources in a diversified way, and it has become the consensus of experts and scholars. Coal and natural gas are converted into oil or other chemical products through the Fischer-Tropsch Synthesis reaction. On the one hand, it can solve the shortage of oil resources and meet the demand for energy from the rapid growth of the national economy; on the other hand, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G73/44
Inventor 刘汉卿马芳伟刘永
Owner CHNA ENERGY INVESTMENT CORP LTD
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