초록 ▼

Process for the high temperature steam reforming of hydrocarbons in the presence of a steam reforming catalyst arranged as fixed bed in a reforming reactor, wherein the catalyst bed comprises at least an upper and a lower layer, the upper layer being provided with catalyst particles having reduced a

Process for the high temperature steam reforming of hydrocarbons in the presence of a steam reforming catalyst arranged as fixed bed in a reforming reactor, wherein the catalyst bed comprises at least an upper and a lower layer, the upper layer being provided with catalyst particles having reduced activity in the steam reforming of hydrocarbons.

대표청구항 ▼

A process for the steam reformation of hydrocarbons, comprising the steps: i) partially combusting a hydrocarbon feedstock, steam and an oxygen containing gas stream in a burner reactor in which the inside wall of the burner reactor is lined with an alumina containing insulating refractory material

A process for the steam reformation of hydrocarbons, comprising the steps: i) partially combusting a hydrocarbon feedstock, steam and an oxygen containing gas stream in a burner reactor in which the inside wall of the burner reactor is lined with an alumina containing insulating refractory material which forms volatile degradation products during the combustion process; ii) passing the resulting partially combusted effluent containing the alumina based volatile degradation products to a steam reforming catalyst for the steam reformation of the residual hydrocarbon molecules within said partially combusted effluent, the improvement comprising: arranging said steam reforming catalyst into first and second layers wherein the first layer has a lower catalytic activity than the second layer so as to minimize intensity of deposition of the aluminum based degradation products on the first layer of the catalyst bed which is the portion of the catalyst bed that is first contacted by the partially combusted effluent, thereby reducing plugging of the catalyst bed with the aluminum containing degradation products.