The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 09, 2017

Filed:

Aug. 05, 2014
Applicant:

Kellogg Brown & Root Llc, Houston, TX (US);

Inventors:

Shashi Prakash Singh, Missouri City, TX (US);

Akhil Jain Nahar, Delhi, IN;

Stephen Allen Noe, Tomball, TX (US);

Assignee:

Kellogg Brown+Root LLC, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01C 1/04 (2006.01); B01J 19/00 (2006.01); C01B 3/02 (2006.01); C01B 3/12 (2006.01); C01B 3/38 (2006.01);
U.S. Cl.
CPC ...
C01C 1/0458 (2013.01); B01J 19/00 (2013.01); C01B 3/025 (2013.01); C01B 3/12 (2013.01); C01B 3/38 (2013.01); C01C 1/04 (2013.01); C01C 1/0405 (2013.01); C01B 2203/0233 (2013.01); C01B 2203/0283 (2013.01); C01B 2203/043 (2013.01); C01B 2203/047 (2013.01); C01B 2203/0445 (2013.01); C01B 2203/0475 (2013.01); C01B 2203/068 (2013.01); C01B 2203/141 (2013.01); C01B 2203/142 (2013.01); C01B 2203/143 (2013.01); C01B 2203/146 (2013.01); Y02P 20/132 (2015.11); Y02P 20/52 (2015.11);
Abstract

Methods and systems for making ammonia are provided. The method can include heating a first compressed syngas to produce a heated first syngas. The heated first syngas and a second compressed syngas can be combined to produce a combined syngas. The combined syngas can be reacted within a first ammonia converter and a second ammonia converter to produce an ammonia product. Heat from the ammonia product can be transferred to a first heat transfer medium to produce a first cooled product and a second heat transfer medium. Heat from the first cooled product can be transferred to a third heat transfer medium to produce a second cooled product. Heat from the second cooled product can be transferred to the combined syngas to produce a third cooled product. The third cooled product can be separated to produce a purified ammonia product and a recycle gas.


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