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:
Jun. 25, 1996
Filed:
Nov. 08, 1995
Albert Calderon, Bowling Green, OH (US);
Other;
Abstract
A method for the co-production of fuel and iron from coal and from iron ore respectively, which is comprised of heating the coal in the absence of oxygen to make a raw coal gas and a residual coke, and of increasing the content of free hydrogen in the coal gas through the cracking against a desulfurizing hot reagent, of the hydrocarbons contained in the gas in order to yield a hydrogen rich, desulfurized, hot reducing synthetic gas. This synthetic gas which is highly reactive, is fed through a bed of iron ore in order to directly reduce the ore to metallized iron. The off-gas exiting from the bed of ore is divided into three parts:-a first part is mixed with the raw coal gas, and is recycled for further use; a second part is used to provide the thermal energy required for the heating of the coal to make the raw gas and the coke; and a third part which is purged to maintain the process in balance, is utilized for other thermal needs. The coke when made from metallurgical coal can be used as fuel for making iron in a blast furnace; the coke when made from non-metallurgical coal is gasified to make an additional gas which can be used as a fuel for generating electricity. Other carbonaceous materials may be added to the coal.