Class 585/923 - At reactor inlet

Subclass of Class 585 - Chemistry of hydrocarbon compounds
Definition: Subject matter wherein the device is at that point where
No. of patents: 20
Last issue date: 08/19/2008

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Number	Title	Issue Date
7414166	Minimizing catalyst backflow in fluidized bed reactors This invention provides feed introduction devices, and processes for using same, which minimize catalyst clogging. In particular, the invention is to a feed introduction device having a first end in fluid communication with a feed source, a second end in fluid commu...	08/19/2008
7385099	Multiple riser reactor with centralized catalyst return The present invention is directed to a hydrocarbon conversion apparatus and process. The apparatus comprises the following: a plurality of riser reactors, each having a first end into which a catalyst is fed, a second end through which the catalyst can exit, and opt...	06/10/2008
7169960	Dehydrogenation process A process for the dehydrogenation of a C2 or C3 alkyl aromatic compound to a corresponding vinyl aromatic compound in a tubular reactor incorporating a spiral flow path. Preferred embodiments of the invention provide processes for the productio...	01/30/2007
7102050	Multiple riser reactor The present invention is directed to a hydrocarbon conversion apparatus. The apparatus comprises the following: a plurality of riser reactors, each of the riser reactors having a first end into which a catalyst can be fed and a second end through which the catalyst ...	09/05/2006
7034196	Method and apparatus for reducing decomposition byproducts in a methanol to olefin reactor system Disclosed is a method and apparatus for reducing the amount of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by monitoring and/or maintaining the temperature of at least a port...	04/25/2006
6989091	Deep conversion combining the demetallization and the conversion of crudes, residues, or heavy oils into light liquids with pure or impure oxygenated compounds A process for the conversion of hydrocarbons that are solid or have a high boiling temperature and may be laden with metals, sulfur or sediments, into liquids (gasolines, gas oil, fuels) with the help of a jet of gas properly superheated between 600 and 800° C. The...	01/24/2006
6824675	Distribution device for producing a polyphase mixture, and associated reactor A device for producing and distributing a polyphase mixture between two fluids comprises a chamber for the passage of a first fluid, said chamber being pierced by perforated tubes or conduits to pass a second fluid in a different physical state than the first fluid ...	11/30/2004
6781024	Dehydrogenation process Process for the catalytic dehydrogenation of a C2 or C3 alkyl aromatic in which a feedstock containing the alkyl aromatic and steam is supplied into the inlet of a tubular reactor containing a dehydrogenation catalyst. Within the reactor, the f...	08/24/2004
6737556	Method and system for reducing decomposition byproducts in a methanol to olefin reactor system Disclosed is a method and system for reducing the formation of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by forming and/or coating one or more of the heating devices, feed ...	05/18/2004
6613219	Device for distributing a poly-phase mixture over a bed of a granular solid, comprising a porous jet disturber element A device for distributing a poly-phase mixture comprises: at least one gas phase and at least one liquid phase, said mixture being in downflow mode through at least one bed of granular solid, comprising: at least one tray (P) located above one of said bed...	09/02/2003
6420621	Optimized process for the preparation of olefins by direct conversion of multiple hydrocarbons A process for hydrocarbon conversion to prepare lower olefins such as ethylene, propylene, etc., and light aromatics by bringing hydrocarbons into contact with a solid granular catalyst. In order to optimize the reaction conditions and product structure a...	07/16/2002
6380449	Dehydrogenation process Process for the catalytic dehydrogenation of ethylbenzene in which a feedstock containing ethylbenzene and steam is supplied into the inlet of a tubular reactor containing a dehydrogehation catalyst. Within the reactor, the feedstock flows through at leas...	04/30/2002
6036848	Method for loading and unloading a catalyst without halting the progress of an operation The catalyst inside a catalytic reaction column is replaced while running the catalytic reaction by diverting a basically monophase fluid to keep it from passing through the catalyst, evacuating from the column the catalyst that has lost at least a portio...	03/14/2000
5969207	Method for changing the qualitative and quantitative composition of a mixture of liquid hydrocarbons based on the effects of cavitation The proposed method comprises passing the hydrodynamic flow of liquid hydrocarbons through a flow-through passage accomodating a baffle body providing for a local constriction of the flow; establishing the local flow constriction on at least one portion o...	10/19/1999
5800604	Wax The invention relates to a novel wax and also to a process for preparing the wax which can be chemically modified in a simple, flexibly adaptable, inexpensive and environmentally friendly way. For this purpose, it is provided for the untreated waxes to be...	09/01/1998
5723041	Process and apparatus for promoting annularly uniform flow An apparatus is described for promoting annularly uniform flow in a reaction space of a mixed phase reactor. The apparatus defines ports which face a shared direction relative to the axis. The apparatus is useful in a process, also described, in which flu...	03/03/1998
5095167	Isoparaffin:olefin alkylation process The present invention provides a process and apparatus for alkylating an isoparaffin with an olefin which decreases the required catalyst inventory while improving alkylate quality by internally admixing unreacted isoparaffin and alkylate product with the...	03/10/1992
4136015	Process for the thermal cracking of hydrocarbons In a process for the thermal cracking of hydrocarbons by the introduction of liquid petroleum feedstock in atomized form into a stream of hot combustion products formed by the combustion of fuel and oxidant in successive burner and mixing zone, constricti...	01/23/1979
4051193	Process for producing ethylene from ethane Process and apparatus are provided for producing ethylene by the oxidative dehydrogenation of ethane wherein ethane is introduced to a cylindrical jet reactor wherein the ethane is reacted at elevated temperatures with a gas mixture containing oxygen and ...	09/27/1977
4041088	Recirculation telomerization process and its liquid telomers and liquid telomers produced thereby Recirculation process and apparatus for the preparation of normally liquid telomers derived from the reaction of a gaseous taxogen with a solution in a liquid telogen, such as toluene, of an organometal telomerization initiator, such as a mixture or compl...	08/09/1977

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Class 585/923 - At reactor inlet