摘要:
The invention relates to a plant and a process for chemical looping oxidation-reduction combustion of a gaseous hydrocarbon feedstock, for example natural gas essentially comprising methane. According to the invention, a catalytic pre-reforming of the feedstock is carried out in a prereforming zone comprising a fixed reforming catalyst, while benefiting from a heat transfer between the reduction or oxidation zone of the chemical loop and the prereforming zone adjacent to the reduction or oxidation zone. The prereforming zone (130) and the oxidation zone (110) or the prereforming zone (130) and the reduction zone (120) are thus thermally integrated within the same reactor (100) while being separated by at least one thermally conductive dividing wall (140).
摘要:
The invention relates to a method and an apparatus for combustion by chemical-loop oxidation reduction (CLC) of a gaseous hydrocarbon feedstock, for example natural gas consisting essentially of methane. According to the invention, catalytic reforming of the feedstock is carried out within the reduction zone in which the combustion of the feedstock takes place, in contact with an oxidation-reduction active mass in particle form. The reforming catalyst is in the form of fluidised particles which are not transported within the reduction zone. The catalyst thus confined to the reduction zone does not circulate in the CLC loop.