摘要:
The invention relates to a novel type of active mass and to the use thereof in chemical loop combustion methods. The active mass contains a spinel of the formula A X A' X -B Y B'O 4 . The active masses of the invention have a high oxygen transfer capacity and redox rates enabling the advantageous use thereof in the loop combustion method. A and A' may be identical and B and B' may also be identical.
摘要:
The invention relates to a method for chemical-loop oxidation-reduction combustion that uses an active mass including a binder in the form of a fluidised-bed catalytic-cracking catalyst containing silica and alumina, and a metal oxide active phase. The active mass is obtained by impregnating metal salts on a new or used catalytic-cracking catalyst. Advantageously, the invention pertains to the field of CO 2 trapping.
摘要:
The invention relates to a mesoporous mixed-oxide catalyst including silicon and at least one metal M chosen from the group made up of the elements of groups 4 and 5 of the periodic table and the mixtures thereof, the mass of metal M making up from 0.1 to 20% of the mass of the mixed oxide. The catalyst is preferably prepared by the modern metal-organic sol-gel process. The invention also relates to the use of the catalyst to convert ethanol into butadiene.
摘要:
The invention relates to the use of a novel type of active mass in looping redox processes. Said mass contains a spinel corresponding to the formula Cu1-X Fe1+xAlO4 with 0≤x≤0.1. The active mass according to the invention has a high oxygen transfer capacity and improved oxidation and reduction rates.