C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
362/2, 23/422, 2
C07C 1/20 (2006.01) B01J 8/00 (2006.01) B09B 3/00 (2006.01) C07C 1/00 (2006.01) C07C 29/151 (2006.01) C07C 31/02 (2006.01) C10G 1/02 (2006.01)
Patent
CA 1093102
ABSTRACT OF THE DISCLOSURE There is described a process for pyrolytically converting carbohydrate-containing waste material such as straw, waste wood, garbage and manure into useful products such as gaseous and liquid hydrocarbons and alcohols. The process comprises: a) heating a mixture of calcium carbonate, and at least one alkali metal carbonate in a first reaction zone to a temperature in the range of 1200° - 1300°C. whereby the calcium carbonate is converted into CaO and CO2; b) introducing into a second reaction zone a feedstock comprising said carbohydrate-containing waste material in comminuted or pulverized form; c) simultaneously passing the reaction mixture resulting from said heating of CaCO3 and alkali metal carbonate in said first reaction zone to said second reaction zone, said reaction mixture comprising a suspension of CaO and alkali metal carbonate; and intimately contacting said feedstock with said heated mixture therein; thereby effecting the decomposition of the feedstock into a mixture of carbon, hydrocarbons and gases including carbon monoxide and hydrogen; and at the same time during the course of the above reaction said CaO reacts with CO2 therein to form CaCO3, said reactions in the second reaction zone occurring at super- atmospheric pressure; d) separating said gases from the mixture of CaCO3, alkali metal carbonate and carbon so formed, and withdrawing said gases from the second reaction zone; e) passing the withdrawn gases to a catalytic reactor wherein are formed said useable products; f) recycling said suspension of CaCO3, alkali metal carbonate and carbon to said first reaction zone; and g) repeating steps (a) - (f) above. Also described is apparatus for carrying out the above process. The apparatus includes (1) rectifier means within which the CaCO3 and alkali metal carbonate are converted to CaO and CO2; (2) pyrolysis means operatively connected to the rectifier means; (3) means for introducing carbohydrate-containing waste material feedstock into the pyrolysis means or reactor; (4) means for continuously cycling a suspension of solid material (e.g. CaO and carbonaceous material) in a fluid medium throughout the reactor and rectifier system; (5) means for withdrawing separated gases from both the reactor and rectifier; and (6) means for converting the separated gases withdrawn from the reactor into useable products such as hydrocarbon fuel and/or alcohols.
252928
Graham Donald R.
Habicht Bernhard G.
Malcolm David G.
Gowling Lafleur Henderson Llp
Graham Donald R.
Habicht Bernhard G.
Malcolm David G.
LandOfFree
Carbohydrate wastes conversion process and apparatus therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carbohydrate wastes conversion process and apparatus therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbohydrate wastes conversion process and apparatus therefor will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1044092