摘要:
Process for producing ethyleneamines by reacting monoethanolamine (MEOA) with ammonia in the presence of a transition metal heterogeneous catalyst in which the catalytically active mass of the catalyst before the treatment with hydrogen contains oxygen-containing compounds of aluminium, copper, nickel and cobalt and the shaped catalyst body in the case of bead shape or rod shape in each case has a diameter of
摘要:
The invention relates to a method for the non-oxidative dehydroaromatisation of aliphatic hydrocarbons by reacting an educt flow containing aliphatic hydrocarbons, in the presence of a catalyst containing at least one metalosillcate as a carrier, at least one element selected from the groups Mo, W and Re as active components and at least one additional transitional metal that is not a precious metal, as a dopant. The catalyst is regularly regenerated under non-oxidative conditions with hydrogen. Preferably, Fe, Ni, Cu and Co are used as additional transitional metals.
摘要:
The present invention relates to a combined process for depleting or removing methane from a methane-containing gas mixture A and subsequent dehydrogenation, comprising the following steps 1) preparing a methane-enriched mixture B by contacting the methane-containing gas mixture A with at least one sorbent comprising a porous organometallic skeleton material, the skeleton material comprising at least one at least bidentate organic compound bound coordinatively to at least one metal ion; 2) preparing a methane-depleted gas mixture C by desorbing the compounds retained on the sorbent; 3) dehydrogenating aromatization of the saturated and unsaturated hydrocarbons present in mixture C or a portion thereof in the presence of a catalyst to aromatic hydrocarbons, to obtain a mixture D; 4) if appropriate separating the mixture D into a low boiler mixture E which comprises the majority of the H2 formed and of the unconverted hydrocarbons, and into at least one high boiler mixture F which comprises the majority of the aromatic hydrocarbons formed.
摘要:
Process for producing ethyleneamines by reacting monoethanolamine (MEOA) with ammonia in the presence of a transition metal heterogeneous catalyst in which the catalytically active mass of the catalyst before the treatment with hydrogen contains oxygen-containing compounds of aluminium, copper, nickel and cobalt and the shaped catalyst body in the case of bead shape or rod shape in each case has a diameter of
摘要:
The invention relates to a method for producing aromatic hydrocarbons from a C1-C4 alkane or a mixture of C1-C4 alkanes. Said method is characterized in that: a) an educt flow A containing a C1-C4 alkane or a mixture of C1-C4 alkanes is brought in contact with a catalyst, and some of the C1-C4 alkane or some of the mixture of C1-C4 alkanes is reacted to aromatic hydrocarbon/s, b) the product flow B resulting from step (a) is separated into a low-boiling flow C containing the main portion of the hydrogen and the non-reacted C1-C4 alkane or mixture of C1-C4 alkanes, and a high-boiling flow D or several high-boiling flows D' containing the main portion of the obtained aromatic hydrocarbon, and c) the low-boiling flow C is fed to another process consuming C1-C4 alkane, the hydrogen contained in the low-boiling flow C being optionally eliminated beforehand.