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:
May. 04, 1999
Filed:
Nov. 27, 1996
Hiroyuki Fujimura, Tokyo, JP;
Yoshio Hirayama, Zushi, JP;
Shosaku Fujinami, Tokyo, JP;
Shuichi Nagato, Yokohama, JP;
Tetsuhisa Hirose, Tokyo, JP;
Takahiro Oshita, Yokohama, JP;
Masaaki Irie, Tokyo, JP;
Kazuo Takano, Tokyo, JP;
Toshio Fukuda, Yokohama, JP;
Ebara Corporation, Tokyo, JP;
Ube Industries, Ltd., Ube, JP;
Abstract
A method and apparatus for treating wastes by gasification recovers metals or ash content in the wastes in such a state that they can be recycled, and gases containing carbon monoxide (CO) and hydrogen (H.sub.2) for use as synthesis gas of ammonia (NH.sub.3). The wastes are gasified in a fluidized-bed reactor at a relatively low temperature, and gaseous material and char produced in the fluidized-bed reactor are introduced into the high-temperature combustor. The synthesis gas is produced in the high-temperature combustor at a relatively high temperature, CO and H.sub.2 O in the synthesis gas is converted into CO.sub.2 and H.sub.2, and then H.sub.2 is recovered by removing CO.sub.2.