Common Heating Furnace Patents (Class 202/114)
  • Patent number: 9518227
    Abstract: The present invention relates to a method for producing biofuel from biomass material, comprising the steps of (a) pyrolyzing a first fraction of the biomass material having a pyrolysis temperature that is lower relative to the pyrolysis temperature of a second fraction of the biomass material to thereby produce a primary volatile fraction, and (b) separating the primary volatile fraction from the biomass material before pyrolyzing the second fraction, to thereby produce biofuel.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: December 13, 2016
    Assignee: Petroliam Nasional Berhad (Petronas)
    Inventors: Hisam Mohamed Wahab Mohamad, Freddy Wee Teck Teo, Mohammad Ghaddaffi Bin Mohd Noh
  • Publication number: 20080230366
    Abstract: A liquid condensation system heats a liquid raw material under a decompressed circumstance and evaporates a volatile component from a liquid surface to condense the liquid raw material. Therefore, the liquid condensation system includes: liquid condensers, each of which condenses the liquid raw material; a vacuum pump that is in communication with the liquid condensers; and a warm water circulation system as a heating source that heats the liquid raw material in the liquid condensers. The volatile component evaporated in the liquid condensers is led to the outside of the liquid condensers through vapor lines. The condensed liquid that is not evaporated in the liquid condensers is led to the outside of the liquid condensers through condensed-liquid lines. Condensed-liquid-line adjusting valves are interposed on the condensed-liquid lines, and heating means is attached to the condensed-liquid lines. A control unit controls the heating means and the condensed-liquid-line adjusting valves.
    Type: Application
    Filed: February 7, 2008
    Publication date: September 25, 2008
    Inventors: Yuzuru ITO, Yoshishige ENDO, Hidekasu TSUDOME, Fumiaki NUMAJIRI
  • Patent number: 6322760
    Abstract: A continuous pyrolysis and decoking process and apparatus is described for the production of acetylenic compounds, in which hydrocarbons and steam are circulated in at least one tube (31) of a steam cracking reactor (30) and steam is circulated in at least one tube (32) of that reactor. The hydrocarbon effluent and steam then circulate in at least one row (1) of a pyrolysis reactor (40) and the decoking effluent comprising steam circulate in at least one other row (2) of that reactor (4) to effect decoking. A set of valves V1, V2, V11, V12 is used to alternate the pyrolysis step path and the decoking step path. The temperature in the steam cracking furnaces is lower than that in the pyrolysis reactor.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: November 27, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Christian Busson, Jean-Pierre Burzynski, Pierrr Marache, Christian Dubois
  • Patent number: 5217578
    Abstract: The processor is of the type incorporating horizontal, concentric, co-extensive inner and outer tubular members which rotate together. The processor is modified in the following respects:The front end of the inner tubular member is circumferentially corrugated and may be provided in the form of a plurality of parallel tubes arranged in a ring array, to thereby increase the shell area to promote heat transfer through the tube walls;Means are provided for interconnecting the tubular members, which means can accommodate differing rates of thermal expansion and;a rock recycle tube assembly is provided to recover oversize material leaving the corrugated portion of the inner tubular member and reject it from the processor.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: June 8, 1993
    Assignee: Alberta Oil Sands Technology and Research Authority
    Inventors: William Taciuk, Roderick Caple, Sean Goodwin, Gordon Taciuk
  • Patent number: 4544451
    Abstract: Briquettes made from bituminous or sub-bituminous coal or peat are produced by grinding the coal, mixing it with a binder and compacting the mixture. They are then carbonized in a continuous process in a shaft oven. The coal may be predried and the finished briquettes may be preheated, with a subsequent drying and hardening. The carbonization is effected in two stages in an indirectly heated shaft oven, with the evolved gas being taken off about at the mid-height of the oven shaft, processed, and used for heating in the second, high-temperature stage. The flue gases from this high-temperature stage are used for heating in the first stage and for preheating. The second or high-temperature stage is followed by a cooling stage where the gases evolved in the second stage, and mainly comprising hydrogen are used and circulated. The evolved gas in excess is continuously removed from the cooling circuit.
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: October 1, 1985
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventors: Heinrich Weber, Kurt Lorenz, Horst Dungs
  • Patent number: 4284477
    Abstract: Vertically elongate pockets are defined between fixed and horizontally movable vertical refractory walls. When the bottom of the pocket is closed, coal dropped into the pocket from above is compressed between the fixed and movable walls and heated to coking temperature by hot gases in vertical flues extending through the refractory walls. When coked, the moveable wall recedes and the coke therein drops into a shaft furnace below, where devolatilization is complete and the coke is quenched in an inert gas atmosphere, which is totally enclosed to prevent air pollution.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: August 18, 1981
    Assignee: Mansfield Carbon Products, Inc.
    Inventor: Vaughn Mansfield
  • Patent number: 4235676
    Abstract: An elongated tube is maintained at a temperature of about F. throughout its length. Organic waste material such as shredded rubber automobile tires or industrial plastic waste or residential trash which preferably has metal and inorganic matter removed therefrom, is moved through the tube at a uniform rate of speed in the absence of air and/or oxygen, with the material being churned or tumbled as by means of a screw conveyor. The vapors and gases which are produced and/or liberated within the tube are quickly removed therefrom by means of a vacuum of from about four inches to about six inches of mercury, with the vapors being condensed and the gases separated therefrom. The char or residue which is a black, powdery, carbon-type material is also recovered.
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: November 25, 1980
    Assignee: Deco Industries, Inc.
    Inventor: R. William Chambers
  • Patent number: 4161441
    Abstract: A continuous process for removing a substantial amount of the water present in oil shale prior to retorting the same to facillitate the rate of recovery of the oil therefrom in the retorting step of the process and to substantially increase the capacity of the latter step in the process and improve the overall efficiency thereof; which comprises subjecting the said oil shale in subdivided form to indirect heat treatment with hot combustion gases in a partial dehydration step under relatively milder temperature conditions than that of the retort, collecting the vapors and gases from the partial dehydration step, in the temperature range from the prevailing temperature up to about F. to about F.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: July 17, 1979
    Inventor: Jacque C. Morrell