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Highly active slurry catalyst composition

a slurry catalyst, high-active technology, applied in the direction of catalyst activation/preparation, organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, etc., can solve the problem that the patent does not demonstrate the criticality of oil viscosity, and the significance of maintaining, etc., to achieve the effect of high-viscosity carbonaceous

Inactive Publication Date: 2006-03-16
CHEVROU USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015] This new highly active slurry catalyst composition may be stored in an active and concentrated state. The catalyst composition can be directly introduced into any of the known heavy oil or residuum upgrading processes under the existing conditions of that process. The catalyst can upgrade the very high viscosity carbonaceous and / or highly paraffinic feedstocks with or without dilution of the feedstock.

Problems solved by technology

These patents do not, however, demonstrate the criticality of the oil viscosity in the formation of a highly active catalyst composition, nor the significance of maintaining water in the liquid phase in a crucial reaction step.

Method used

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  • Highly active slurry catalyst composition

Examples

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Effect test

example 1

Catalyst Preparation

[0027] 540 gram MoO3 is mixed with 79 gram of NH3 and 2381 gram of H2O to form a solution of total 3000 gram. The solution is then reacted with 10.71 SCF of H2S by passing a gas mixture of 20% H2S in H2 into the solution under strong mixing. The reactor temperature is 150° F. and the total pressure is 400 psig, and the reaction time is 4 hours. After reaction, 460 gram NiSO4 solution which contains 36 gram of Ni is added to the above obtained slurry. The obtained slurry mixture is then mixed with 8000 gram of vacuum gas oil at 100° F. The viscosity of the VGO is 5 cSt @ 212° F. The resulting mixture is then pumped into a continuously flow tanked reactor (perfectly mixed flow reactor) with H2. The H2 gas rate is 300 SCF / B. The reactor pressure is 400 psig and reactor temperature is 400° F., the total reaction time is 1 hour. The reaction products are mixed with more H2 at a gas rate of 1500 SCF / B and then go to a hot high pressure separator, which is also maintai...

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Abstract

The instant invention is directed to the preparation of a slurry catalyst composition. The slurry catalyst composition is prepared in a series of steps, involving mixing a Group VIB metal oxide and aqueous ammonia to form an aqueous mixture and sulfiding the mixture to form a slurry. The slurry is then promoted with a Group VIII metal. Subsequent steps involve mixing the slurry with a hydrocarbon oil, and combining the resulting mixture with hydrogen gas (under conditions which maintain the water in a liquid phase) to produce the active slurry catalyst.

Description

FIELD OF THE INVENTION [0001] The present invention relates to the preparation of slurry catalyst compositions useful in the processing of heavy oils. These oils are characterized by low hydrogen to carbon ratios and high carbon residues, asphaltenes, nitrogen, sulfur and metal contents. BACKGROUND OF THE INVENTION [0002] Slurry catalyst compositions and means for their preparation are known in the refining arts. Some examples are discussed below. [0003] U.S. Pat. No. 4,710,486 discloses a process for the preparation of a dispersed Group VIB metal sulfide hydrocarbon oil hydroprocessing catalyst. Process steps include reacting aqueous ammonia and a Group VIB metal compound, such as molybdenum oxide or tungsten oxide, to form a water soluble oxygen-containing compound such as ammonium molybdate or tungstate. [0004] U.S. Pat. No. 4,970,190 discloses a process for the preparation of a dispersed Group VIB metal sulfide catalyst for use in hydrocarbon oil hydroprocessing. This catalyst i...

Claims

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Application Information

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IPC IPC(8): B01J35/12B01J31/00B01J27/02
CPCB01J27/049Y10T428/2982B01J37/20C07F11/005C07F15/045C10G45/04C10G45/08C10G45/16C10G47/26C10G49/02C10G49/04C10G49/12C10G2300/1033C10G2300/207C10G2300/703Y10S502/517C10G2300/1003C10G2300/1022C10G2300/1074B01J27/0515B01J27/02C10G47/02B01J31/00B01J35/27
Inventor CHEN, KAIDONGREYNOLDS, BRUCE E.
Owner CHEVROU USA INC
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