Chemistry of inorganic compounds – Hydrogen or compound thereof – Elemental hydrogen
Reexamination Certificate
2007-10-31
2010-12-07
Langel, Wayne (Department: 1736)
Chemistry of inorganic compounds
Hydrogen or compound thereof
Elemental hydrogen
C423S659000, C518S712000, C549S247000, C549S262000, C558S308000, C558S319000, C562S512000, C562S524000, C562S607000
Reexamination Certificate
active
07846417
ABSTRACT:
An ammonia converter 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: 1909358 (1933-05-01), Jaeger
patent: 1932247 (1933-10-01), Kniskern
patent: 3807963 (1974-04-01), Smith
patent: 4138440 (1979-02-01), Chang et al.
patent: 4341737 (1982-07-01), Albano et al.
patent: 4597946 (1986-07-01), Ward
patent: 4778662 (1988-10-01), Pinto
patent: 4822521 (1989-04-01), Fuderer
patent: 4894205 (1990-01-01), Westerman et al.
patent: 4929798 (1990-05-01), de Lasa
patent: 5000926 (1991-03-01), Murayama et al.
patent: 5190731 (1993-03-01), Stahl
patent: 5250270 (1993-10-01), Noe
patent: 5520891 (1996-05-01), Lee
patent: 6171570 (2001-01-01), Czuppon
patent: 6214296 (2001-04-01), Lou et al.
patent: 7255845 (2007-08-01), Tonkovich et al.
patent: 7371361 (2008-05-01), Singh et al.
patent: 2007/0122322 (2007-05-01), Te Raa et al.
patent: 2009/0043114 (2009-02-01), Taheri et al.
Mann David P.
Pisut Anant
Singh Shashi P.
KBR IP Legal Dept.
Kellogg Brown & Root LLC
Langel Wayne
LandOfFree
Maximum reaction rate converter process for exothermic... 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 process for exothermic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Maximum reaction rate converter process for exothermic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4158334