Circumvallate Flues Patents (Class 202/127)
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Patent number: 9334446Abstract: A thermal cracker device includes an outer furnace and a thermal cracking furnace accommodated in the outer furnace. The outer surface of the thermal cracking furnace and the inner surface of the outer furnace define a space. The outer surface of the thermal cracking furnace has a fin structure to define an air flow channel in the space.Type: GrantFiled: June 4, 2013Date of Patent: May 10, 2016Assignee: E-Sunscience Co., Ltd.Inventors: Li-Feng Cheng, Hsien-Cheng Yu, Wen Chun Kuo
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Patent number: 8772556Abstract: A process and system for the conversion of biomass under high severity in the presence of a catalyst to produce a bio-oil, olefins, methane, and carbon monoxide (CO). The methane and/or CO can be used to generate hydrogen and the generated hydrogen can be used for hydrotreating the bio-oil. Additionally, or alternatively, a syngas stream, a carbon dioxide-rich stream, and/or a methane-rich stream can be recovered for use in the bio-oil production process and/or for use in a conventional petroleum refinery and/or petrochemical plant.Type: GrantFiled: September 22, 2010Date of Patent: July 8, 2014Assignee: KiOR, Inc.Inventor: Andre Ditsch
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Patent number: 6797122Abstract: A coke oven and a method of operating the same, capable not only of achieving a uniform combustion temperature heightwise within a combustion chamber when a rich gas or a lean gas is burnt, but also of reducing NOx content in the waste gas, while eliminating localized high-temperature combustion. The combustion chamber of the coke oven comprises a rich-gas port 2 located near an oven wall 6 bordering a carbonization chamber in the bottom 5 of combustion chamber, and the midpoint P3, connecting the center P2 of a lean-gas port 7 and the center P of an air port 3, is on the side opposite to the rich-gas port 2 relative to the center line CL of the combustion chamber. (See FIG.Type: GrantFiled: March 3, 2000Date of Patent: September 28, 2004Assignee: The Japan Iron and Steel FederationInventors: Shuhei Yoshida, Syoji Takase, Takafumi Saji, Makoto Uchida, Hiroyuki Koyama
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Patent number: 6379629Abstract: A carbonizing apparatus permits effective use of an organic gas generated in a carbonizing vessel by utilizing an exhaust gas obtained by defusing the organic gas from the carbonizing vessel, as a heating source of the carbonizing vessel. The carbonizing apparatus has a carbonizing vessel having a carbonizing vessel jacket, into which a heating medium flows, a heat transmission surface forming an inner peripheral wall of the carbonizing vessel to be heated by the heating medium, a carbonizing object flowing means for flowing a carbonizing object charged thereinto, in contact with the heat transmission surface and a combustion furnace for burning an organic gas to be generated within the carbonizing vessel for defusing. The heating medium heating the heating surface is an exhaust gas as a heating gas after burning the organic gas in the combustion furnace, and the exhaust gas flowing into the carbonizing vessel jacket and discharging into an ambient air.Type: GrantFiled: December 22, 1997Date of Patent: April 30, 2002Inventor: Masao Kanai
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Patent number: 6264798Abstract: An improved process and article of manufacture to advance heater performance and reduce the cost of delayed coker charge heaters. Such improved performance is realized by routing delayed coker feedstock through a double row, double fired, heating conduit thus creating a channel to contain previously heated flue gas and resulting in the introduction of downflow, backside convective heat transfer to the interior portion of the heating conduit. When replacing the present art's single row coker tubes with the double row heating conduit afforded by the instant invention, the backside convective heat transfer introduced to the interior portion of the heating conduit eliminates the necessity of double firing the present art's single row coker heater tubes to achieve similar results.Type: GrantFiled: July 20, 1999Date of Patent: July 24, 2001Assignee: Petro-Chem Development Co. Inc.Inventors: William C. Gibson, Robert L. Gibson, James T. Eischen
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Patent number: 6241855Abstract: An improved process and article of manufacture to effectuate pressure reduction in a delayed coker charge heater's radiant heat section outlet and feedstock process coil, by upflowing coker feedstock through a single or double row, single or double fired, feedstock process coil. The innovative upflowing of coker feedstock as disclosed by the present invention allows BFW/Steam injection and vaporizing hydrocarbons to rise in the same flow direction as the coker feedstock, resulting in an enhanced mixing of fluid film and coker feedstock. Such enhanced mixing, in turn, increases heat transfer rates to the feedstock. As coker charge heater burners are commonly located in the bottom of the heater, the lower portion of the heater is typically the location of highest processing temperatures and tube side fouling.Type: GrantFiled: August 24, 1999Date of Patent: June 5, 2001Assignee: Petro-Chem Development Co. Inc.Inventors: William C. Gibson, Robert L. Gibson, James T. Eischen
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Patent number: 4476789Abstract: The present invention provides a charcoal producing apparatus comprising a combustion chamber, a heating chamber, first passage means interconnecting the combustion chamber and a discharge flue and second passage means interconnecting the heating chamber with the combustion chamber the second passage means being open to the atmosphere and having means for closing it off from the atmosphere. The invention also provides a method for the production of charcoal.Type: GrantFiled: August 31, 1982Date of Patent: October 16, 1984Inventor: Anthony Constantine
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Patent number: 4050990Abstract: A method of producing form coke that is coke having pieces of substantially identical form using a heated shaft furnace comprises mixing fine coke with a caking coal and pressing the mixture at temperatures at which the mixture is plastic in order to form briquettes. The briquettes are permitted to harden and degasify and thereafter they are exposed to a high temperature after hardening for example to a temperature of from 400.degree. to 900.degree. C from 60 to 120 minutes. Thereafter the briquettes are cooled. A first mixing substance is prepared by permitting a fine coal to fall in a non-compressed stream in the shaft furnace while heat is transferred thereto substantially by radiation.Type: GrantFiled: September 30, 1976Date of Patent: September 27, 1977Assignee: Firma Carl StillInventor: Kurt Lorenz