HYDROCONVERSION MULTI-METALLIC CATALYST AND METHOD FOR MAKING THEREOF

Title:

HYDROCONVERSION MULTI-METALLIC CATALYST AND METHOD FOR MAKING THEREOF

Document Type and Number:

WIPO Patent Application WO/2012/064467

Kind Code:

A3

Abstract:

In a process for forming a bulk hydroprocessing catalyst by sulfiding a catalyst precursor made in a co-precipitation reaction, up to 60% of the metal precursor feeds do not react to form catalyst precursor and end up in the supernatant. In the present disclosure, the metals can be recovered via any of chemical precipitation, ion exchange, electro-coagulation, adding a precipitant to generate additional catalyst precursor, and combinations thereof to generate an effluent stream containing less than 50 mole % of metal ions in at least one of the metal residuals, and for at least one of the metal residuals is recovered as a metal precursor feed, which can be recycled for use in the co-precipitation reaction. The process results in minimal metals in the waste water stream. In one embodiment, an effluent stream to waste treatment contains less than 50 ppm metal ions.

Inventors:

KUPERMAN ALEXANDER E (US)
MAESEN THEODORUS (US)
DYKSTRA DENNIS (US)
WANG PING (US)
UCKUNG SOY (US)

Application Number:

PCT/US2011/056645

Publication Date:

July 19, 2012

Filing Date:

October 18, 2011

Export Citation:

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Assignee:

CHEVRON USA INC (US)
KUPERMAN ALEXANDER E (US)
MAESEN THEODORUS (US)
DYKSTRA DENNIS (US)
WANG PING (US)
UCKUNG SOY (US)

International Classes:

B01J37/03; B01J23/888; B01J31/18; B01J37/20; B01J37/30

Domestic Patent References:

WO2010126689A2

2010-11-04

Foreign References:

US20090107891A1	2009-04-30
US7807599B2	2010-10-05
US20050101480A1	2005-05-12
US20030178344A1	2003-09-25

Other References: