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Process for hydroconversion of petroleum feedstocks via a slurry technology allowing the recovery of metals from the catalyst and from the feedstock using a coking step

a petroleum feedstock and hydroconversion technology, which is applied in the direction of catalyst activation/preparation, metal/metal-oxide/metal-hydroxide catalyst, physical/chemical process catalyst, etc., can solve the problem of metals being recovered much more complex than those of refining catalysts supported by supporting forces, and achieve good metal recovery levels, minimize residual fraction, and improve the effect of hydroconversion known processes

Inactive Publication Date: 2013-03-28
INTREVEP SA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a process for obtaining a solid effluent containing coke by coking a residual fraction and / or a vacuum residue. This step helps to concentrate the metals in the effluent and reduce the amount of residue, which is then treated by combustion. The process also maximizes the yield of liquid effluents for further treatment.

Problems solved by technology

The specific nature of the slurry processes being to have a finely dispersed catalyst not supported on a mineral phase makes the recovery of the metals much more complex than that of the supported refining catalysts used conventionally.
The challenge for the industrial development of the processes for hydroconversion by slurry technology is the need to recover and recycle the metals originating from the catalysts.

Method used

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  • Process for hydroconversion of petroleum feedstocks via a slurry technology allowing the recovery of metals from the catalyst and from the feedstock using a coking step
  • Process for hydroconversion of petroleum feedstocks via a slurry technology allowing the recovery of metals from the catalyst and from the feedstock using a coking step
  • Process for hydroconversion of petroleum feedstocks via a slurry technology allowing the recovery of metals from the catalyst and from the feedstock using a coking step

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Embodiment Construction

[0025]The invention relates to a process for hydroconversion of heavy petroleum feedstocks in slurry allowing the recovery and recycling of the metals in the unconverted residual fraction, in particular those used as catalysts.

[0026]More particularly, the invention relates to a process for hydroconversion of heavy petroleum feedstocks containing metals comprising:

[0027]a) a step of hydroconversion of the feedstock in at least one reactor containing a slurry catalyst containing at least one metal, and optionally containing a solid additive,

[0028]b) a step of separation of the hydroconversion effluent without decompression into a so-called light fraction containing the compounds boiling at a maximum temperature of 500° C. and a residual fraction,

[0029]b′) optionally a fractionation step comprising a separation under vacuum of said residual fraction as obtained in step b), and a vacuum residue with a high concentration of metals is obtained,

[0030]c) a step of coking of said residual fr...

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Abstract

A process for hydroconversion of heavy petroleum feedstocks comprising a hydroconversion step of the feedstock in at least one reactor containing a slurry catalyst and allowing the recovery of metals in the unconverted residual fraction, in particular those used as catalysts, The process comprises a hydroconversion step, a gas / liquid separation step, a coking step, a combustion step, a metals extraction step and a step of preparing catalytic solutions which are recycled to the hydroconversion step.

Description

[0001]The invention relates to a process for hydroconversion of heavy petroleum feedstocks to lighter products, which can be upcycled as fuels and / or raw materials for the petrochemicals industry. More particularly, the invention relates to a process for hydroconversion of heavy petroleum feedstocks comprising a step of hydroconversion of the feedstock in at least one reactor containing a slurry catalyst and allowing the recovery of metals from the unconverted residual fraction, in particular those used as catalysts, in order to re-use them in catalytic solutions and recycle them upstream of the slurry conversion process. The process comprises a hydroconversion step, a gas / liquid separation step, a coking step, a combustion step, a metals extraction step and a step of preparing catalytic solution(s) which is / are recycled to the hydroconversion step.[0002]Heavy petroleum feedstocks can be converted to liquid products by means of thermal treatments or hydrogenation treatments, also ca...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10B57/02C10G47/02C10G45/04C10G65/02B01J35/00
CPCB01J23/883C10G2300/708C10G9/005C10G49/12C10G67/02C10B57/02C10G45/04C10G47/02C10G65/02C10G2300/1074C10G2300/1077C10G2300/202C10G2300/205C10G2300/206C10G2300/301C10G2300/701B01J37/20
Inventor HERAUD, JEAN PHILIPPEMOREL, FREDERICQUIGNARD, ALAIN
Owner INTREVEP SA
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