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Hydrogenation purifying combined process for Fischer-Tropsch synthetic substance

A Fischer-Tropsch synthesis and hydro-upgrading technology, applied in hydrotreating process, petroleum industry, processing hydrocarbon oil, etc., can solve the problems of poor product quality, stability and adverse effects of operation cycle, etc.

Active Publication Date: 2008-06-18
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the Fischer-Tropsch synthetic oil contains a relatively high content of olefins and oxygen, it is directly in contact with the isomerization cracking catalyst, which has an adverse effect on its stability and operation cycle, and the product quality is poor

Method used

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  • Hydrogenation purifying combined process for Fischer-Tropsch synthetic substance

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Embodiment

[0043] The high-temperature condensate, low-temperature condensate and synthetic wax obtained by natural separation of Fischer-Tropsch synthesis, among which the high-temperature condensate and low-temperature condensate enter the hydrofinishing reactor filled with RGF-1 protection catalyst on the upper part, and the hydrofinishing catalyst RTF- 1 Under the action of olefin saturation and hydrodeoxygenation, the reaction conditions are: hydrogen partial pressure 6.4MPa, reaction temperature 300°C, volume space velocity 3.0h -1 , the volume ratio of hydrogen to oil is 300v / v; the refined reaction product is cut into naphtha fraction, diesel fraction and heavy oil fraction through the fractionating tower; the heavy oil fraction enters the hydrocracking reaction together with the synthetic wax from the Fischer-Tropsch synthesis reactor Reactor under the action of catalyst RCF-2, the reaction conditions are: hydrogen partial pressure 6.4MPa, reaction temperature 375 ℃, volume space...

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Abstract

A kind of combined technology method to hydrogenate and improve quality of the product from Fishcher-Tropsch synthesis process, condensate and synthetic wax can be gained by natural isolation of the product from Fishcher-Tropsch synthesis process, and the condensate will contact with hydrogen and hydrofining catalyst, then the tail oil produced by the isolation of the hydrofining reactant liquor will contact with the synthetic wax, hydrogen, and hydrocracking and isocracking catalyst, the middle oil fraction product can be gained after the isolation of the hydrocracking reactant liquor at last. The yield of the diesel oil is more than 80% by the method, the cetane number will be more than 80, and sulfur, nitrogen and aromatic hydrocarbon can barely found in the product.

Description

technical field [0001] This invention pertains to a process for treating hydrocarbon oils using multiple hydrotreating processes, more particularly to a process for treating Fischer-Tropsch compounds using a hydrotreating process and a cracking process in the presence of hydrogen. technical background [0002] At present, the main source of fuel used by various means of transportation in the world is petroleum, and various derivatives of petroleum provide a strong driving force for economic and social development. However, petroleum, as a non-renewable energy source, is facing the crisis of depletion day by day, and the quality of crude oil is getting worse and worse, and the content of non-ideal components such as polycyclic aromatic hydrocarbons, sulfur, nitrogen, etc. Before becoming a fuel commodity, it needs to go through an increasingly complex processing process to remove components that affect the environment, resulting in a substantial increase in production and pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/12
Inventor 熊震霖李毅李大东胡志海门卓武卫剑聂红石亚华
Owner CHINA PETROLEUM & CHEM CORP
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