FCC-CFE CAT FINE EXTRACTION: METHOD AND SYSTEM FOR EXTRACTING CATALYST FINES FROM SLURRY OIL CAT FINE BOTTOMS (SOCFBs) INTO AN AQUEOUS LAYER

a technology of cat fines and cat bottoms, which is applied in the field of fcccfe cat fine extraction : method and system for extracting catalyst fines from slurry oil cat fine bottoms, which can solve the problems of fccu catalyst deterioration, ash content, and fccu attrition,

Inactive Publication Date: 2009-05-14
WEBER LARRY J
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems presented by catalyst attrition from fluid catalytic cracking units (FCCU) have plagued the refining industry since the advent of fluid catalytic cracking in the first half of the 20th century.
Over time, FCCU catalyst deteriorates in size.
The existence of catalyst fines in the slurry tank presents a variety of problems to the refiner.
The immediate and obvious problem has to do with product contamination.
Even when the slurry oil product is utilized as a fuel source, a “price penalty” is effectively borne as ash content, in the form of the inorganic catalyst fines, increases.
As the accumulation of catalyst fines continues in the storage tank, a time comes when no amount of settling enhancement will permit the stored product to “meet specification” of carbon black manufacturers or even fuel products.
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  • FCC-CFE CAT FINE EXTRACTION: METHOD AND SYSTEM FOR EXTRACTING CATALYST FINES FROM SLURRY OIL CAT FINE BOTTOMS (SOCFBs) INTO AN AQUEOUS LAYER
  • FCC-CFE CAT FINE EXTRACTION: METHOD AND SYSTEM FOR EXTRACTING CATALYST FINES FROM SLURRY OIL CAT FINE BOTTOMS (SOCFBs) INTO AN AQUEOUS LAYER
  • FCC-CFE CAT FINE EXTRACTION: METHOD AND SYSTEM FOR EXTRACTING CATALYST FINES FROM SLURRY OIL CAT FINE BOTTOMS (SOCFBs) INTO AN AQUEOUS LAYER

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Embodiment Construction

[0018]While the invention is susceptible of embodiment in many different forms, there is described in detail preferred embodiments of the invention. It is to be understood that the present disclosure is to be considered only as an example of the principles of the invention. This disclosure is not intended to limit the broad aspect of the invention to the illustrated embodiments. The scope of protection should only be limited by the claims.

[0019]The present invention comprises a method for separating catalyst particles from Slurry Oil Cat' Fine Bottoms comprising the steps of preparing a heated and treated Slurry Oil Cat' Fines Diluent Mixture (SCDM) in a specialized processing vessel referred to as a Feed Preparation Vessel (FPV) and transferring the prepared feed to a Feed Processing Unit (FPU). A SCDM is prepared in the FPV. Water is added to the SCDM and mixed in a manner predetermined by bench modeling the specific SCDM / water solution to ascertain a treatment formulation, a trea...

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Abstract

A method for separating hydrocarbons from Slurry Oil Cat' Fine Bottoms (SOCFBs) comprising the steps of removing SOCFBs from a slurry oil storage tank and combining the SOCFBs with diluent and water in a Feed Preparation Vessel (FPV) and transferring the SOCFB and water emulsion to a Feed Processing Unit (FPU) in which the SCDM settles into a hydrocarbon layer, an emulsion layer and a water layer containing catalyst particles.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a system and method for the resolution of Slurry Oil Cat' Fine Bottoms (SOCFBs) into organic and inorganic components by the extraction of the catalyst fines from a prepared Slurry Oil / Catalyst Fines / Diluent Mixture (SCDM) into an aqueous layer. The invention is not restricted to SOCFB feed. The feed may be a diluted SOCFB feed, Cat Fine Cake resulting from centrifuge processing, a slurry oil run down stream, a SCDM or any hydrocarbon sludge.BACKGROUND OF THE INVENTIONSlurry Oil / Catalyst Fines Tank Bottoms Recovery & Processing[0002]The problems presented by catalyst attrition from fluid catalytic cracking units (FCCU) have plagued the refining industry since the advent of fluid catalytic cracking in the first half of the 20th century. Over time, FCCU catalyst deteriorates in size. The size deteriorated catalyst is commonly referred to as catalyst fines.[0003]In the FCCU process, cracked product stream vapor and some catal...

Claims

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Application Information

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IPC IPC(8): C10G21/02
CPCC10G31/08
Inventor WEBER, LARRY J.
Owner WEBER LARRY J
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