A fixed bed reactor for cyclic, catalytic dehydrogenation of hydrocarbons, such as alkanes and a reactor-internal device for improving distribution of hydrocarbon feed into the fixed catalyst bed of the reactor. The device comprises a vertical deflector plate with multiple horizontal slits and a frustum cone with multiple perforations on the lateral surface, connected to the bottom end of the plate. The reactor includes a main horizontal reaction vessel containing a fixed catalyst bed and a cactus-shaped inlet assembly sub-divided into three inlets at the upper half portion to supply fluid streams, including hydrocarbon feed, to the catalyst bed. The distributor device is positioned inside a main central vertical arm of the inlet assembly form by the convergence of the three inlets. Various embodiments of the distributor device where the slit thicknesses, distance between slits, perforation diameter, distance between perforations are varied, are also provided.

A process is described for improving the performance of certain multiphase reaction systems including a solid catalyst, one or more reactants in the gas phase and one or more reactants in the liquid phase, wherein a targeted maximum concentration of a reactant in the liquid phase is identified for providing improved value in terms of byproduct formation, catalyst deactivation and yields of desired products, and this targeted concentration is closely approached and preferably achieved, but not substantially exceeded, downstream in a continuous process or later in time from the initiation of a batch in a semibatch mode of operation of such processes.

The invention relates to distributing reactants more evenly across the interior space of a reactor vessel utilizing a distributor at the inlet end that initially directs the flow of reactants through a series of circumferential nozzles. The nozzles are physical spaced such that the first nozzle provides the reactants into the vessel to spread radially and broadly outwardly into the vessel and each successive circumferential nozzle to deliver reactants in a less broadly distribution or dispersion where the interior space is filled with reactants without broadly diverse velocities that may create hot spots within the catalyst bed.

A method for producing a dehydrogenated product and a coked catalyst, then introducing an oxygen-containing fluid, combusting at least a portion of the coke disposed on the catalyst in the presence of the oxygen-containing fluid to produce a decoked catalyst. An apparatus for introducing fluid into a reactor, comprising a first inlet conduit configured to convey a first gas, a second inlet conduit configured to convey a second gas, and an outlet conduit configured to convey the first gas and the second gas into a reactor, wherein there is an acute angle between a longitudinal axes of the first inlet conduit and a longitudinal axis of the second inlet conduit and an obtuse angle between a longitudinal axis of the outlet conduit and the longitudinal axis of the second inlet conduit and a pre-distributor disposed, in one embodiment on the inner surface, within the first inlet conduit is disclosed.

Described herein are improved chemical reactors for carrying out partial oxidation reactions. The chemical reactor permits the use of levels of oxygen above the lower explosion limit (LEL) typically used in partial oxidation reactions, which increases both volumetric reactivity and conversion per pass, resulting in reduced separation and reactant recycle costs. Also described are methods of using the reactors.

A reactor includes a vessel, a gas inlet, a solid outlet, a catalyst support configured to at least partially retain a catalyst material and allow a tail gas to pass therethrough, and a tail gas outlet. The gas inlet is in fluid communication with the solid outlet. A system for producing a solid product includes a reactor, a compressor, a heater, a make-up reactive gas inlet, and a solids discharge means for removing the solid product from the solid outlet of the reactor. Methods of forming solid products include providing a catalyst material in a vessel having a porous catalyst support, delivering a reactive gas to the vessel, reacting the reactive gas to form a solid product and a tail gas in the vessel, passing the tail gas through a portion of the catalyst material to separate the solid product from the tail gas, and removing the solid product.

This invention relates to a process for recovering a liquid product from a pyrolysis stream. The process comprises preheating a pyrolysis stream comprising a mixture of hydrocarbons; distilling the preheated pyrolysis stream in a distillation column to produce one or more streams including a top stream at the top of the distillation column; cooling the top stream withdrawn from the distillation column in a condenser; refluxing the stream that has exited the condenser in a reflux vessel; and withdrawing at least part of a liquid product from the bottom of the reflux vessel to recover a liquid naphtha or naphtha-like product. The invention also relates to various recovered liquid products produced from the process described herein. The invention also relates to an apparatus for recovering liquid products from a pyrolysis stream, comprising a preheater; a distillation column that does not contain a reboiler; a condenser; and a reflux vessel.

The present relates to a process comprising the steps of Providing a syngas stream with module M to a Methanol loop, In the Methanol loop passing the syngas though a first Methanol reactor, obtaining a first effluent from the first Methanol reactor, Cooling the first effluent and condensing at least part of the produced methanol Separating the first cooled effluent into at least a first raw Methanol stream and a first unreacted stream, Heating the first unreacted stream, Passing the first heated unreacted stream through a second methanol reactor, Obtaining a second effluent from the second methanol reactor, Separating the second effluent into at least a second raw Methanol stream and a second unreacted stream, and Recycling the second unreacted stream to the syngas stream.

At least one method to efficiently produce alkylene oxide from partial oxidation of hydrocarbons using a high efficiency heterogeneous catalyst in a fixed bed enclosed within a reaction vessel, and a reaction vessel constructed to facilitate the same.

A fixed bed reactor for cyclic, catalytic de-hydrogenation of hydrocarbons, such as alkanes and a reactor-internal device for improving distribution of hydrocarbon feed into the fixed catalyst bed of the reactor. The device comprises a vertical deflector plate with multiple horizontal slits and a frustum cone with multiple perforations on the lateral surface, connected to the bottom end of the plate. The reactor includes a main horizontal reaction vessel containing a fixed catalyst bed and a cactus-shaped inlet assembly sub-divided into three inlets at the upper half portion to supply fluid streams, including hydrocarbon feed, to the catalyst bed. The distributor device is positioned inside a main central vertical arm of the inlet assembly form by the convergene of the three inlets. Various embodiments of the distributor device where the slit thicknesses, distance between slits, perforation diameter, distance between perforations are varied, are also provided.