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:
Oct. 18, 2011

Filed:

Mar. 31, 2009
Applicants:

Ermanno Filippi, Castagnola, CH;

Francesco Baratto, Como, IT;

Inventors:

Ermanno Filippi, Castagnola, CH;

Francesco Baratto, Como, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A process for producing substitute natural gas (SNG) comprising the steps of reacting a fresh syngas () into a methanation section () comprising adiabatic reactors (-) connected in series, with heat removal and reacted gas-recirculation, wherein the fresh syngas is fed in parallel to said adiabatic reactors. In a preferred embodiment the reacted gas is recirculated to the first reactor () and further dilution of the fresh gas at the inlet of the first and second reactor is achieved by steam addition.


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