摘要:
Disclosed is a multi-component bismuth molybdate catalyst for production of butadiene which comprises bismuth, molybdenum and at least one metal having a monovalent, divalent or trivalent cation, and further comprises cesium and potassium and thus has advantages of improving conversion ratio, yield and selectivity of butadiene and of providing stability of process operation.
摘要:
The dehydrogenation of diisopropyl benzene employs a solid catalyst having an iron compound and potassium compound as major components or an iron compound, potassium compound, and magnesium compound as major components, as a dehydrogenating catalyst for producing isopropenyl cumene and diisopropenyl benzene. By carrying out an off-and-on reaction in which the above described solid catalyst is employed and with which a regeneration period with steam or oxygen or air is provided, an economical and industrial dehydrogenation method having an extended life of the catalyst can be provided and will have an industrial superiority.
摘要:
The present invention is directed to a process for the simultaneous production of carbon nanotubes and product gas comprising hydrogen and lighter hydrocarbons, from a liquid hydrocarbon comprising feeding a liquid hydrocarbon in a reactor; and converting the liquid hydrocarbon with a catalyst for simultaneous production of the carbon nanotubes, hydrogen and lighter hydrocarbons, wherein the liquid hydrocarbon comprises petroleum crude oil, its products, or mixtures thereof.
摘要:
A process for preparing a dehydrogenation catalyst comprising preparing a mixture comprising a treated regenerator iron oxide and at least one additional catalyst component; and calcining the mixture wherein the treated regenerator iron oxide is prepared by washing a regenerator iron oxide at a temperature below 350 °C such that the treated regenerator iron oxide has a chloride content of at most 500 ppmw relative to the weight of iron oxide, calculated as Fe2O3; the catalyst prepared by this process and the use of the catalyst in a dehydrogenation process.
摘要:
A process for preparing a catalyst which process comprises preparing a mixture comprising iron oxide and at least one Column 1 metal or compound thereof, wherein the iron oxide is obtained by heating a mixture comprising an iron halide and at least 0.05 millimoles of a Column 6 metal per mole of iron; a catalyst made by the above described process; an iron oxide composition; a process for the dehydrogenation of an alkylaromatic compound which process comprises contacting the alkylaromatic compound with the catalyst; and a method of using an alkenylaromatic compound for making polymers or copolymers, in which the alkenylaromatic compound has been produced by the dehydrogenation process.
摘要:
To provide a method for producing a conjugated diolefin that can suppress reaction byproducts with high boiling point from remaining in steps following a quenching step by a quenching tower, and a method for producing a conjugated diolefin (e.g., 1,3-butadiene) that can be used as a raw material for synthetic rubber, resin and the like, even when using an industrial grade mixed hydrocarbon that may not necessarily have a high purity as a raw material to produce the conjugated diolefin (e.g., butadiene), provided is a method for producing a conjugated diolefin, which includes a step of producing a product gas by reaction containing a conjugated diolefin by feeding a hydrocarbon containing a monoolefin having 4 or more carbon atoms and oxygen to a reactor accommodated with a catalyst which comprises a metal oxide and a carrier, and a step of sending the product gas by reaction to a quenching tower and washing with a quenching agent, wherein an organic amine aqueous solution is used as the quenching agent.
摘要:
To provide a method for producing a conjugated diolefin that can suppress reaction byproducts with high boiling point from remaining in steps following a quenching step by a quenching tower, and a method for producing a conjugated diolefin (e.g., 1,3-butadiene) that can be used as a raw material for synthetic rubber, resin and the like, even when using an industrial grade mixed hydrocarbon that may not necessarily have a high purity as a raw material to produce the conjugated diolefin (e.g., butadiene), provided is a method for producing a conjugated diolefin, which includes a step of producing a product gas by reaction containing a conjugated diolefin by feeding a hydrocarbon containing a monoolefin having 4 or more carbon atoms and oxygen to a reactor accommodated with a catalyst which comprises a metal oxide and a carrier, and a step of sending the product gas by reaction to a quenching tower and washing with a quenching agent, wherein an organic amine aqueous solution is used as the quenching agent.
摘要:
An economical and industrial method for the dehydrogenation of triisopropyl benzene can be provided by carrying out the reaction employing a solid catalyst having an iron compound and potassium compound as major components or an iron compound, potassium compound, and magnesium compound as major components, as a dehydrogenating catalyst for producing diisopropyl isopropenyl benzene, isopropyl diisopropenyl benzene and/or triisopropenyl benzene from triisopropyl benzene. In the dehydrogenation of triisopropyl benzene or diisopropyl benzene, by carrying out an off-and-on reaction in which the above described solid catalyst is employed and with which a regeneration period with steam or oxygen or air is provided, an economical and industrial dehydrogenation method having an extended life of the catalyst can be provided and will have an industrial superiority.