Abstract: This invention involves a cyclic method for capturing CO2 from gas streams arising from processes of reforming, gasification or combustion of carbonaceous fuels. The method is based on these gas streams reacting with solids that contain at least CaO and a metal or an oxidized form of the metal. The method is characterized by the oxidized form of the metal being able to undergo a sufficiently exothermic reduction reaction for the heat released during the reaction to cause the decomposition of CaCO3. The thermodynamic and kinetic characteristics of the method of this invention make it ideal for the removal of the CO2 present in gas streams resulting from processes such as hydrocarbon reforming or the combustion of carbonaceous fuels.

Abstract: This invention involves a cyclic method for capturing CO2 from gas streams arising from processes of reforming, gasification or combustion of carbonaceous fuels. The method is based on these gas streams reacting with solids that contain at least CaO and a metal or an oxidized form of the metal. The method is characterized by the oxidized form of the metal being able to undergo a sufficiently exothermic reduction reaction for the heat released during the reaction to cause the decomposition of CaCO3. The thermodynamic and kinetic characteristics of the method of this invention make it ideal for the removal of the CO2 present in gas streams resulting from processes such as hydrocarbon reforming or the combustion of carbonaceous fuels.

Abstract: A method for producing synthetical oils and storable products of calorific energy, by co-processing waste rubber materials, especially waste tires, and coal optionally in the presence of a material containing Fe as a catalyst, comprising the steps of mixing triturated waste rubber material having a particle size of preferredly 1-5 mm, and coal having particle sizes of 0.2-1 mm, and, when used, the catalyst having a referred particle size of 0.05-0.015 mm, until obtaining a mixture, heating the mixture in a reactor to a temperature between 300.degree. C. and 500.degree. C., during 3-180 minutes, at a pressure between atmospheric pressure and 10 MPa, to enable a processing step basically consisting of a pyrolysis/hydropyrolysis. During the processing step, there is a generation of gases containing approximately 50% CO and CO.sub.2, and approximately another 50% by volume of C.sub.1 -C.sub.4 hydrocarbons, and having a calorific energy between 6000 and 8000 kcal/Nm.sup.