Patent classifications
B01J14/005
Multi-stage contacting process and apparatus
A method may include: introducing a fluid comprising a first immiscible phase and a second immiscible phase into a contacting vessel comprising multiple contact stages: flowing the fluid through a first fiber bundle disposed in the contacting vessel; separating at least a portion of the first immiscible phase from the second immiscible phase; and flowing the separated portion of the first immiscible phase through a second fiber bundle disposed in the contacting vessel.
A DEVICE AND METHOD FOR CONVERTING AND SEPARATING AT LEAST ONE REACTANT AND A REACTION PRODUCT THEREOF
The invention relates to a method and a device device for converting at least one reactant(5) into a reaction product and separating the at least one reactant from the reaction product, wherein the device comprises a vessel(10) with a vessel inner volume (11) and a confinement (20) submerged in the vessel inner volume (11), the confinement (20) providing a confinement inner (21) volume which is in fluid connection with the vessel inner volume (11), wherein the vessel inner volume (11) contains a first fluid (1) with a first density p1 and a second fluid with a second density p2, with p1 > p2, so that the first fluid (1) forms a lower phase and the second fluid (2) forms an upper phase in the vessel inner volume (11), wherein the confinement contains a third fluid (3) with a third density p3 with p3 > p2 so that the second fluid forms an upper layer and the third fluid forms a lower layer in the confinement inner volume (21), wherein the third fluid may be the same as or different from and is physically separated from the first fluid (1), wherein at least one of the first, second fluid and third fluid is at most partly with the other two, but preferably immiscible, wherein the at least one reactant (5) and the reaction product (6) have a different affinity for at least two of the first, second (2) and third fluid, wherein at least one of the first (1) and third fluid (3) contain a fourth phase (4) which is a solid or semi solid and is selected from the group of materials capable of promoting the conversion of the at least one reactant into the reaction product.
TUBULAR REACTOR WITH MIXING MEANS
A process and apparatus wherein a process material comprising two or more distinct phases are fed continuously to a tubular reactor containing an agitator wherein as the phases flow along the reactor the agitator displaces at least part of a first phase from its natural position to within a second phase where it is distributed within the second phase by the agitator and the agitator is designed to allow the first phase that is distributed within the second phase to flow naturally back towards its natural distinct position within the reactor as the phases pass through the reactor, useful for mixing and/or reacting liquid/liquid; gas/gas and liquid/gas mixtures as well as solid liquid mixtures.
Catalytic carbon fiber contactor
A fiber bundle contactor may include: a flow path defined by a conduit; a catalytic carbon fiber bundle disposed in the conduit; and an inlet allowing fluid flow into the flow path. A method may include: introducing into vessel a hydrocarbon comprising mercaptan sulfur, an aqueous caustic solution, and an oxidizer; reacting at least a portion of the mercaptan sulfur and the aqueous caustic solution to produce a mercaptide; and reacting the mercaptide and the oxidizer in the presence of a catalytic carbon fiber bundle to produce a disulfide oil.
Process for preparing methacrolein from formaldehyde and propionaldehyde and preparation plant for the purpose
A process and a preparation plant prepares methacrolein from formaldehyde and propionaldehyde, in presence of water and a homogeneous catalyst based at least on an acid and a base. A reaction mixture is introduced into a methacrolein workup plant and separated in a first distillation column, into a first distillation mixture in a gas phase at the top and a second distillation mixture in a liquid phase at the bottom. The first distillation mixture is condensed and, in a first phase separator, the organic phase and the aqueous phase of the condensate are separated from one another. The aqueous phase is introduced into a second distillation column, that is not part of the methacrolein workup plant, and is separated into a third distillation mixture in a gas phase at the top and a fourth distillation mixture at the bottom. The third distillation mixture is introduced into the methacrolein workup plant.
Catalytic hydrodearylation of heavy aromatic streams containing dissolved hydrogen with fractionation
Systems and methods for hydrodearylation of a hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons, the method including supplying a hydrogen feed to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; mixing the hydrogen feed with the hydrocarbon feed stream to saturate the hydrocarbon feed stream with hydrogen gas to create a hydrogen-enriched liquid hydrocarbon stream; passing the hydrogen-enriched liquid hydrocarbon stream to a hydrodearylation reactor without a separate gaseous phase of hydrogen; allowing the hydrogen-enriched liquid hydrocarbon stream to react in presence of a catalyst under specific reaction conditions to produce a product stream comprising a reduced concentration of di-aromatic compounds and an increased concentration of mono-aromatic compounds compared to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; and recovering, from the hydrodearylation reactor, a product stream for a downstream process, wherein the non-condensed alkyl-bridged multi-aromatic hydrocarbons include at least two benzene rings connected by an alkyl bridge group having at least two carbons, wherein the benzene rings are connected to different carbons of the alkyl bridge group.
SYNTHESIS OF TRICHLOROSILANE FROM TETRACHLOROSILANE AND HYDRIDOSILANES
The invention relates to a process for the preparation of trichlorosilane (HSiCl3) which comprises the reaction of tetrachlorosilane (SiCU) with hydridosilanes in the presence of a catalyst.
MULTI-STAGE CONTACTING PROCESS AND APPARATUS
A method may include: introducing a fluid comprising a first immiscible phase and a second immiscible phase into a contacting vessel comprising multiple contact stages: flowing the fluid through a first fiber bundle disposed in the contacting vessel; separating at least a portion of the first immiscible phase from the second immiscible phase; and flowing the separated portion of the first immiscible phase through a second fiber bundle disposed in the contacting vessel.
Device for processing and conditioning of material transported through the device
The present invention relates to a device for treatment of material transported through the device having a specific design.
CATALYTIC HYDRODEARYLATION OF HEAVY AROMATIC STREAMS CONTAINING DISSOLVED HYDROGEN WITH FRACTIONATION
Systems and methods for hydrodearylation of a hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons, the method including supplying a hydrogen feed to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; mixing the hydrogen feed with the hydrocarbon feed stream to saturate the hydrocarbon feed stream with hydrogen gas to create a hydrogen-enriched liquid hydrocarbon stream; passing the hydrogen-enriched liquid hydrocarbon stream to a hydrodearylation reactor without a separate gaseous phase of hydrogen; allowing the hydrogen-enriched liquid hydrocarbon stream to react in presence of a catalyst under specific reaction conditions to produce a product stream comprising a reduced concentration of di-aromatic compounds and an increased concentration of mono-aromatic compounds compared to the hydrocarbon feed stream comprising non-condensed alkyl-bridged multi-aromatic hydrocarbons; and recovering, from the hydrodearylation reactor, a product stream for a downstream process, wherein the non-condensed alkyl-bridged multi-aromatic hydrocarbons include at least two benzene rings connected by an alkyl bridge group having at least two carbons, wherein the benzene rings are connected to different carbons of the alkyl bridge group.