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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

Active Publication Date: 2014-12-17
JAPAN OIL GAS & METALS NAT CORP +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] However, in the case of the method described in Patent Document 3, there is a problem that while light paraffins are supplied to the wax fraction hydrocracking reactor, The original hydrocracking of the wax fraction will not be carried out, and the efficiency of hydrocracking of the wax fraction will decrease

Method used

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  • Method for producing hydrocarbon oil
  • Method for producing hydrocarbon oil
  • Method for producing hydrocarbon oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084]

[0085] Containing 3.0% by mass of USY zeolite (silica / alumina molar ratio: 37) in powder form with an average particle diameter of 0.4 μm, powdered alumina boria (mass ratio of alumina / boria oxide: 5.6) A composition of 57.0% by mass and 40.0% by mass of powdered alumina is extruded into a cylindrical shape with a diameter of about 1.5mm and a length of about 3mm by a common method, and the obtained molded body is baked at 500°C in air for 1 hour, Get the carrier. After the support was impregnated with an aqueous solution of dichlorotetraammine platinum (II) in an amount of 0.8% by mass based on the mass of the support, the platinum atoms were dried at 120° C. for 3 hours, and then calcined at 500° C. 1 hour, and roasted in air to obtain a hydrocracking catalyst.

[0086]

[0087] Synthetic oil (FT synthetic oil) produced by the FT synthesis reaction was fractionated in a rectification column with a cut point of 360° C., and the obtained residual oil was used as ...

Embodiment 2

[0105] Using the same reactor, hydrocracking catalyst and FT wax fraction as in Example 1, by the same steps as in Example 1, operating conditions recorded in Table 2, the utilization of high cracking rate (78%) / low cracking rate ( 20%) for hydrocracking of unit operations. In the initial high cracking rate hydrocracking run, the corrected reaction temperature for a cracking rate of 78% at the start of the run was 314°C. In addition, the corrected reaction temperature for making the cracking rate 20% at the start of the operation of the hydrocracking operation at the first low cracking rate is 309°C. The yield of middle distillates was 75% over the whole period.

[0106] The time from the start of the operation until the calibration reaction temperature reached 350° C. which was set as the upper limit was 40,000 hours. The results are shown in Table 2.

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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

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/00C10G2/00
CPCB01J37/0009B01J29/126C10G2300/301C10G49/26C10G2300/1022B01J2229/20B01J2229/42C10G47/36C10G47/02
Inventor 岩间真理绘田坂和彦田中祐一
Owner JAPAN OIL GAS & METALS NAT CORP
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