Hydrocarbon synthesis reaction apparatus, hydrocarbon synthesis reaction system, and hydrocarbon synthesis reaction method

Abstract

Discloses is a hydrocarbon synthesis reaction apparatus which comprises a reaction vessel and a synthetic gas supply passage through which a synthetic gas is supplied to the reaction vessel, and which can synthesize a hydrocarbon upon the contact of the synthetic gas with a catalyst slurry in the reaction vessel. The apparatus additionally comprises a standby supply passage and a fluid-heating means, wherein the standby supply passage can supply an inert gas or a hydrogen gas to the reaction vessel through the synthetic gas supply passage when the standby supply passage is connected to the synthetic gas supply passage and the supply of the synthetic gas from the synthetic gas supply means to the synthetic gas supply passage is stopped, and the fluid-heating means can heat either one of a fluid that passes through a flow path that is located in the synthetic gas supply passage and is closer to the reaction vessel than a connection with the standby supply passage or a fluid that passes through the standby supply passage.

Description

technical field [0001] The invention relates to a hydrocarbon synthesis reaction device, a hydrocarbon synthesis reaction system and a hydrocarbon synthesis reaction method. [0002] This application claims priority based on Japanese Patent Application No. 2009-200346 for which it applied in Japan on August 31, 2009, and uses the content here. Background technique [0003] In recent years, GTL (Gas To Liquids: liquid fuel synthesis) technology has been developed as one of methods for synthesizing liquid fuels from natural gas. In GTL technology, natural gas is reformed to produce carbon monoxide gas (CO) and hydrogen (H 2 ) as the main component of synthesis gas, using the synthesis gas as a raw material gas and using a Fischer-Tropsch synthesis reaction (hereinafter referred to as "FT synthesis reaction") to synthesize hydrocarbons using a catalyst, and then hydrogenating and refining the hydrocarbons to produce petroleum gas. Naphtha (gasoline), kerosene, light oil, wax ...

AI Technical Summary

Problems solved by technology

[0007] First, since the FT synthesis reaction continues due to the synthesis gas remaining in the reaction vessel, the reaction heat accompanying the exothermic reaction cannot be effectively removed due to the deterioration of the fluidity of the catalyst slurry, and a hot spot is temporarily formed in the catalyst slurry, which may Part of the catalyst deteriorates due to excessive temperature rise

At this time, after restarting the operation of restarting the supply of the synthesis gas from the synthesis gas supply mechanism, there is a problem that the yield of hydrocarbon synthesis by the FT synthesis reaction is lower than before the operation of stopping the supply of the synthesis gas is stopped.

[0008] In addition, catalyst particles may clog the synthesis gas supply path

At this time, after the operation is restarted, the synthesis gas from the synthesis gas supply mechanism cannot be smoothly supplied into the reaction vessel, and in the worst case, there is a problem that the synthesis gas cannot be supplied at all.

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