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.
Patent No.:
Date of Patent:
Oct. 09, 2018
Filed:
Dec. 14, 2015
Applicant:
Synthesis Energy Systems, Inc., Houston, TX (US);
Inventors:
John D. Winter, Houston, TX (US);
Haruyasu Michishita, Charlotte, NC (US);
Assignee:
SYNTHESIS ENERGY SYSTEMS, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B 13/00 (2006.01); F27D 17/00 (2006.01); C21B 13/02 (2006.01); F27B 1/10 (2006.01);
U.S. Cl.
CPC ...
C21B 13/0033 (2013.01); C21B 13/008 (2013.01); C21B 13/02 (2013.01); F27B 1/10 (2013.01); F27D 17/001 (2013.01); F27D 17/004 (2013.01); Y02P 10/122 (2015.11); Y02P 10/126 (2015.11); Y02P 10/143 (2015.11);
Abstract
Method, apparatus and system for improved energy efficiency in a direct reduction iron production process which uses a direct reduction shaft furnace and syngas as the reduction gas. The method and system of the invention use a part of the top gas emanating from the shaft furnace as transport gas for the gasifier, and control the volume of the top gas used as recycled top gas or fuel for the gas heater. The present invention achieves high energy efficiency, and reduces the need to use additional CHsource for the reduction gas.