Chemistry of inorganic compounds – Nitrogen or compound thereof – Ammonia or ammonium hydroxide
Reexamination Certificate
2008-05-13
2008-05-13
Langel, Wayne A. (Department: 1793)
Chemistry of inorganic compounds
Nitrogen or compound thereof
Ammonia or ammonium hydroxide
C422S148000, C423S655000, C423S659000, C518S712000, C549S248000, C562S607000
Reexamination Certificate
active
07371361
ABSTRACT:
An ammonia converter system and method are disclosed. The reactor can alter the conversion of ammonia by controlling the reaction temperature of the exothermic reaction along the length of the reactor to parallel the equilibrium curve for the desired product. The reactor100can comprise a shell101and internal catalyst tubes109. The feed gas stream enters the reactor, flows through the shell101, and is heated by indirect heat exchange with the catalyst tubes109. The catalyst tubes109comprise reactive zones122having catalyst and reaction limited zones124that can comprise inert devices that function to both separate the reactive zones, increase heat transfer area, and reduce the temperature of the reaction mixture as the effluent passes through the catalyst tube109.
REFERENCES:
patent: 1707417 (1929-04-01), Richardson
patent: 1833188 (1931-11-01), Larson
patent: 1932247 (1933-10-01), Kniskern
patent: 2042922 (1936-06-01), Beardsley
patent: 3147084 (1964-09-01), Franzen
patent: 3518284 (1970-06-01), Gordon
patent: 4122040 (1978-10-01), McCarroll et al.
patent: 4250057 (1981-02-01), Foster et al.
patent: 4568530 (1986-02-01), Mandelik et al.
patent: 4568531 (1986-02-01), van Dijk et al.
patent: 4568532 (1986-02-01), Benner et al.
patent: 4696799 (1987-09-01), Noe
patent: 4822521 (1989-04-01), Fuderer
patent: 5000926 (1991-03-01), Murayama et al.
patent: 5167933 (1992-12-01), Norsk
patent: 5712313 (1998-01-01), Kramer et al.
patent: 5869011 (1999-02-01), Lee
patent: 6015537 (2000-01-01), Gam
patent: 6171570 (2001-01-01), Czuppon
patent: 6955797 (2005-10-01), Speth
patent: 7255845 (2007-08-01), Tonkovich et al.
patent: 20301514 (2003-07-01), None
Mann David P.
Pisut Anant
Singh Shashi P.
Kellogg Brown & Root LLC
Langel Wayne A.
LandOfFree
Maximum reaction rate converter system for exothermic reactions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Maximum reaction rate converter system for exothermic reactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Maximum reaction rate converter system for exothermic reactions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2754506