Purification process

Details Purification process Purification process

2005-05-03

2005-05-03

Griffin, Walter D. (Department: 1764)

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

C585S820000, C585S825000, C585S826000, C585S830000, C208S20800M, C208S213000, C208S25400R, C208S252000, C208S299000

Reexamination Certificate

active

06888039

ABSTRACT:
A process of reducing the sulfur content of gasoline product comprising at least three concurrent steps: a) passing input fluid comprising pollutant through at least one adsorber to produce a polluted adsorber and a purified fluid stream which leaves the adsorber, stopping the flow into said adsorber to leave residual fluid therein, and separating said residual fluid therein said adsorber to leave the polluted adsorber of reduced residual fluid content, b) heating a polluted adsorber with a heated regeneration gas to produce a hot adsorber and cooler regeneration gas, c) contacting a heated adsorber with a regeneration gas (of a lower temperature than that of said adsorber) to produce a cooler adsorber and a warmer regeneration gas, which gas is further heated to produce said heated regeneration gas which is pass to step b), said process comprising at least 3 adsorber, at least one of which being subjected to step a) at least one different adsorber to step b) and at least one further different adsorber being subjected to step c) and after completion of one step the adsorber produced is subjected to the next step in the cyclic sequence a)-b)-c)-a).

REFERENCES:
patent: 3188293 (1965-06-01), Bacon et al.
patent: 3405507 (1968-10-01), Spencer et al.
patent: 3479797 (1969-11-01), Miller, Jr.
patent: 3620969 (1971-11-01), Turnock et al.
patent: 3712027 (1973-01-01), Hasz
patent: 3733775 (1973-05-01), Barrere, Jr.
patent: 3760029 (1973-09-01), McCoy
patent: 3767563 (1973-10-01), Woodle
patent: 3816975 (1974-06-01), Collins
patent: 3954983 (1976-05-01), Albrecht et al.
patent: 4098684 (1978-07-01), Innes
patent: 4179361 (1979-12-01), Michlmayr
patent: 4188285 (1980-02-01), Michlmayr
patent: 4318802 (1982-03-01), Van Grinsven et al.
patent: 4336130 (1982-06-01), Miller et al.
patent: 4383916 (1983-05-01), Gutberlet et al.
patent: 4398927 (1983-08-01), Asher et al.
patent: 4404118 (1983-09-01), Herskovits
patent: 4419224 (1983-12-01), Miller et al.
patent: 4522793 (1985-06-01), Larson et al.
patent: 4774067 (1988-09-01), Voirin et al.
patent: 4775462 (1988-10-01), Imai et al.
patent: 4775484 (1988-10-01), Schmidt et al.
patent: 4830733 (1989-05-01), Nagji et al.
patent: 4830734 (1989-05-01), Nagji et al.
patent: 4831206 (1989-05-01), Zarchy
patent: 4831207 (1989-05-01), O'Keefe et al.
patent: 4835338 (1989-05-01), Liu
patent: 5012037 (1991-04-01), Doshi et al.
patent: 5094755 (1992-03-01), Knaebel
patent: 5114689 (1992-05-01), Nagji et al.
patent: 5157201 (1992-10-01), Norris
patent: 5447701 (1995-09-01), Inoue et al.
patent: 5730860 (1998-03-01), Irvine
patent: 5843300 (1998-12-01), Zinnen et al.
patent: 5891323 (1999-04-01), Willis
patent: 5914292 (1999-06-01), Khare et al.
patent: 5935422 (1999-08-01), Zinnen
patent: 1 284 210 (1962-07-01), None
Irvine et al., “Converting carbon residue to power and hydrogen needs”, Hydrocarbon Technology 47-50 (1994).

Affiliated with

Also associated with

Rating

Purification process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Purification process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Purification process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3395131