Technology for producing naphtha or motor gasoline through flexible hydrogenation of Fischer-Tropsch synthesis oil

A technology for Fischer-Tropsch synthetic oil and motor gasoline, which is applied in the field of oil hydrogenation process, can solve the problems of sacrificing market competitiveness, etc., and achieve the effects of energy saving, lower fuel consumption, and lower temperature.

Inactive Publication Date: 2015-02-11
王生友
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0008] From an economic point of view, compared with the conversion of coal to olefins through methanol, the use of coal to produce olefins through naphtha has gone through the industrial chain of coal→synthesis gas→oil products→hydrofining→naphtha→steam cracking→olefins The long-term sacrifice of its market competitiveness

Method used

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  • Technology for producing naphtha or motor gasoline through flexible hydrogenation of Fischer-Tropsch synthesis oil
  • Technology for producing naphtha or motor gasoline through flexible hydrogenation of Fischer-Tropsch synthesis oil

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Embodiment Construction

[0037] exist figure 1In the process, heavy distillate oil and wax (1) from Fischer-Tropsch synthesis are first mixed with low-temperature oil-washed naphtha (2), then mixed with mixed hydrogen, and passed through the reaction feed / reaction effluent heat exchanger of the refining unit ( 3) Preheating, and then heated to the reaction temperature required by hydrofinishing through the heating furnace (4) and enters the hydrofinishing reactor (5), where reactions such as hydrogenation saturation of olefins and hydrodeoxygenation of oxygenates occur on the reactor bed , the inlet temperature of the lower bed is controlled by cold hydrogen between the beds. The reaction effluent is initially cooled by the heat exchanger (3) and then enters the hot high-pressure separator (6) of the refining unit. The hot high-pressure separator (6) liquid phase enters the hot low-pressure separator (9), the gas phase enters the cold high-pressure separator (7) after being cooled by the air cooler, ...

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Abstract

A technology for producing motor diesel oil and steam cracking naphtha through hydrofining / cracking of Fischer-Tropsch synthesis oil is ripe and industrialized. According to a technology disclosed by the invention, oil-washing naphtha coming from a Fischer-Tropsch synthesis oil apparatus is singly subjected to mild hydrogenation, a complete hydrogenation refining and cracking technology for heavy distillate oil and wax is reserved, when high-quality diesel oil is produced, easily-blendable vehicle gasoline is produced, on-site sale is facilitated, and various difficulties when naphtha is transported and sold to steam cracking apparatuses are avoided. By adjusting the mild hydrogenation operation conditions, complete hydrogenation on naphtha can be realized, thereby satisfying material requirements for steam cracking.

Description

Technical field [0001] The present invention is a kind of hydrogenation process for oil products. Specifically, it is based on different fractions of Fischer-Tropsch synthetic oil through different hydrogenation depths. While producing high-quality diesel oil for vehicles, it only needs to change operating conditions to produce petroleum gas for steam cracking. Naphtha or Motor Gasoline method. Background technique [0002] At present, there are two main types of coal-to-liquids processes: direct liquefaction and indirect liquefaction. In terms of technology maturity, investment, energy consumption, energy conversion efficiency and product quality, indirect liquefaction is more competitive than direct liquefaction. [0003] The general process of indirect coal liquefaction is that pulverized coal (or coal water slurry) is gasified under high pressure and high temperature under the condition of water vapor and pure oxygen to generate crude synthesis gas (ie CO+H 2 ), and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G69/00
CPCC10G69/00C10G2400/04
Inventor 王生友
Owner 王生友
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