Method for producing hydrocarbon oil

A production method and technology of hydrocarbon oil, which is applied in the field of hydrocarbon oil production, can solve the problems of reduced efficiency of hydrocracking of wax fractions, failure to implement hydrocracking, etc., and achieve the effect of inhibiting deterioration over time and prolonging continuous use time
CN103339231BActive Publication Date: 2014-12-17JAPAN OIL GAS & METALS NAT CORP +5
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JAPAN OIL GAS & METALS NAT CORP
Publication Date
2014-12-17

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Abstract

The present invention provides a method for producing a hydrocarbon oil, including performing a hydrocracking by continuously feeding, to a hydrocracking reactor containing a hydrocracking catalyst, a wax to be processed including: a raw wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360°C; and an uncracked wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360°C, which uncracked wax is separated from a hydrocracking product discharged from the reactor, to thereby yield a hydrocarbon oil hydrocarbons with a boiling point of 360°C or lower, wherein the following periods are alternately provided: a period for performing hydrocracking of the wax to be processed under a condition where a cracking rate defined by the following formula (1) is X 1 (%) satisfying the following formula (2); and a period for performing hydrocracking of the wax to be processed under a condition where the cracking rate is X 2 (%) satisfying the following formula (3), and
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Description

technical field

[0001] The present invention relates to a process for the manufacture of hydrocarbon oils. Background technique

[0002] In recent years, due to an increase in environmental awareness, liquid fuels with a low content of substances that impose a burden on the environment, such as sulfur components and aromatic hydrocarbons, have been sought. From this point of view, as a technology capable of producing fuel oil bases substantially free of sulfur components and aromatic hydrocarbons, and rich in aliphatic hydrocarbons, especially kerosene-gas oil bases, the use of carbon monoxide gas and hydrogen as A method of Fischer-Tropsch synthesis reaction (hereinafter, sometimes referred to as "FT synthesis reaction") of raw materials has been studied (for example, refer to Patent Document 1).

[0003] Synthetic oil (crude oil) obtained by the FT synthesis reaction (hereinafter, sometimes referred to as "FT synthetic oil") is a mixture mainly composed of aliphatic hydro...

Claims

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