Circumvallate Flues Patents (Class 202/127)
  • Patent number: 9334446
    Abstract: 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: Grant
    Filed: June 4, 2013
    Date of Patent: May 10, 2016
    Assignee: E-Sunscience Co., Ltd.
    Inventors: Li-Feng Cheng, Hsien-Cheng Yu, Wen Chun Kuo
  • Patent number: 8772556
    Abstract: 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: Grant
    Filed: September 22, 2010
    Date of Patent: July 8, 2014
    Assignee: KiOR, Inc.
    Inventor: Andre Ditsch
  • Patent number: 6797122
    Abstract: 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: Grant
    Filed: March 3, 2000
    Date of Patent: September 28, 2004
    Assignee: The Japan Iron and Steel Federation
    Inventors: Shuhei Yoshida, Syoji Takase, Takafumi Saji, Makoto Uchida, Hiroyuki Koyama
  • Patent number: 6379629
    Abstract: 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: Grant
    Filed: December 22, 1997
    Date of Patent: April 30, 2002
    Inventor: Masao Kanai
  • Patent number: 6264798
    Abstract: 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: Grant
    Filed: July 20, 1999
    Date of Patent: July 24, 2001
    Assignee: Petro-Chem Development Co. Inc.
    Inventors: William C. Gibson, Robert L. Gibson, James T. Eischen
  • Patent number: 6241855
    Abstract: 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: Grant
    Filed: August 24, 1999
    Date of Patent: June 5, 2001
    Assignee: Petro-Chem Development Co. Inc.
    Inventors: William C. Gibson, Robert L. Gibson, James T. Eischen
  • Patent number: 4476789
    Abstract: 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: Grant
    Filed: August 31, 1982
    Date of Patent: October 16, 1984
    Inventor: Anthony Constantine
  • Patent number: 4050990
    Abstract: 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: Grant
    Filed: September 30, 1976
    Date of Patent: September 27, 1977
    Assignee: Firma Carl Still
    Inventor: Kurt Lorenz