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WO/2000/018728A1 |
The present invention provides an improvement in a process and apparatus for manufacturing acrylonitrile by the vapor phase ammoxidation of a hydrocarbon. The invention comprises contacting the gaseous product stream with a quench fluid ...
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WO/2000/017098A1 |
The invention relates to a bubble column with perforated bottoms. Said bubble column can be operated in a counter flow. The space-time yield of gas-liquid reactions can be increased substantially when the perforated bottoms (5) have subs...
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WO/2000/015550A1 |
The invention relates to a method for carrying out gas-liquid reactions in a flow reactor (1) having several parallel reactor chambers (8) which are open in the direction of flow. Space-time yield can be increased by using a reactor havi...
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WO/2000/010696A1 |
A vapor-liquid contactor includes a plurality of vertically stacked trays (151) within a containment column, the central downcomer (152) provides a liquid supply and removal area at the same location on each tray (151), so that the horiz...
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WO/2000/009467A1 |
The invention relates to a method for producing aldehydes and/or alcohols or amines by reacting olefins in a liquid phase with carbon monoxide and hydrogen. One portion of these gases is dispersed in the reaction fluid in the form of gas...
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WO/2000/001476A1 |
A method for practicing an exothermic chemical reaction in a reaction apparatus containing n reactors (n $m(G) 3), characterized in that a reactant is independently fed to m first step reactors (n > m $m(G) 2) of n reactors, and mixtures...
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WO/1999/064477A1 |
A method for devolatilization of a thermoplastic polymer containing at least one volatile component which includes the following three steps: heating the termoplastic polymer so that the thermoplastic polymer is a heated liquid or molten...
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WO/1999/057229A1 |
A three stage hydroprocessing process includes two liquid and one vapor reaction stages, both of which produce an effluent comprising liquid and vapor. Both vapor effluents comprise vaporized hydrocarbonaceous material. Fresh hydrogen is...
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WO/1999/054274A1 |
This invention relates to a process for producing one or more org anic acids in high purity which process comprises (i) oxidizing in a liquid oxidation reactor one or more organic liquids with essentially pure oxygen or oxygen-enriched a...
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WO/1999/051334A1 |
The present invention relates to a reactor for producing carbon black in which the particles have a size of between 110 and 600 Å. This reactor comprises the following members connected in series: a combustion chamber with systems for b...
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WO/1999/050235A1 |
Apparatus for the urea synthesis from ammonia and carbon dioxide of the kind comprising a number of separate reaction compartments; the compartment separating means consist of one or more net layers wherethrough the gas phase coming out ...
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WO/1999/047499A1 |
Peroxides are prepared from organic compounds and oxygen in a reaction vessel by introducing organic compound and oxygen to the reaction vessel and by simultaneously withdrawing a first liquid product stream from adjacent the top of the ...
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WO/1999/046037A1 |
An apparatus for effecting gas/liquid contact in a system in which the liquid is the continuous phase, the apparatus consisting of a vertical column fitted with a series of perforated trays (1). The perforated trays provide openings (3) ...
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WO/1999/041008A1 |
A reactor vessel (1) comprises a reactor body (2) through which channels (3) are provided whose surface comprises longitudinal inwardly directed parts (4) and is provided with a catalyst (6), as well as buffer bodies (8, 12) connected to...
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WO/1999/041329A1 |
A method and reactor system for catalytic hydrotreating and hydrocracking of liquid hydrocarbon feedstocks in order to produce a feedstock having a reduced contaminant level are disclosed. A feedstock (11) is introduced into a first reac...
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WO/1999/041190A1 |
The invention concerns a catalytic process and a device for preparing, in absolute safety, aqueous hydrogen peroxide solutions at high concentration levels directly from hydrogen and oxygen. More particularly, it concerns a method whereb...
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WO/1999/039815A1 |
A predominantly liquid filled, vapor-liquid chemical reactor (10) having an improved distributor plate assembly is disclosed. At least one of the plates (18, 20) in the assembly is formed with an active area having a plurality of apertur...
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WO/1999/033885A1 |
A continuous process for functionalizing polymers is disclosed, wherein (A) a liquid comprising the polymer and a gas comprising a functionalizing agent are continuously introduced into a dispersing zone operated in laminar flow with hig...
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WO/1999/033557A1 |
A gas and liquid contact apparatus (10) is disclosed comprising a vertically oriented containing vessel (12) including a sidewall. At least one grid assembly (20) is positioned within said containing vessel (12) transverse to and concent...
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WO/1999/031053A1 |
An improved process for the synthesis of urea from ammonia and carbon dioxide by the use of a vertically or horizontally placed condenser, enabling the corrosion prevention of the areas in which the tube plate of the condenser is joined ...
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WO/1999/026917A1 |
The invention concerns a method for hydrogenating aliphatic dinitriles at least partly into corresponding aminonitriles. More particularly, it concerns a method for continuous hydrogenation of dinitrile, at least partly into correspondin...
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WO/1999/022853A1 |
A method for mass transfer between gas and liquid or a chemical reaction, with or without a catalyst, between gas and liquid, comprising one or more process stages at each of which stripping or reaction gas is added. One or more dynamic ...
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WO1999003554A9 |
A swirl tube (152) for positioning on a contact device, such as a tray (130), within a vapor liquid process column is disclosed. The swirl tube (152) includes a riser tube (156) having a venturi-shaped geometry, an inlet, and an outlet. ...
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WO/1999/018056A1 |
Catalytic distillation reactions are improved by having an inert condensing component present in the reaction which is boiling and condensing within the reaction which washes the catalyst in the system and, in the case of gaseous reactan...
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WO1998042786A9 |
Components of a chemical processing system are disclosed. In particular, a chemical processing system is disclosed which includes a chemical mixing or reacting zone, an inlet to the zone, an outlet to the zone, and a vacuum or fluid flow...
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WO/1999/015274A1 |
A laboratory reaction vessel comprising two substantially cylindrical chambers with parallel longitudinal axes between their bottom and mouth openings and lower and upper conduits linking the chambers so that contents of the vessel can f...
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WO/1999/013962A1 |
The use of a turbulent contactor to absorb a selected gas component from a gas stream. The invention particularly applies to a method of absorbing a selected gas component from a gas stream which comprises: bringing the gas stream into c...
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WO/1999/013965A1 |
A method for effecting a chemical reaction between at least one component in a first fluid of one phase and at least one component in a second fluid of a different phase. The method comprises subjecting the two fluids to turbulent mixing...
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WO/1999/013964A1 |
A method of removing carbon dioxide and other acid gas components from combustion gas. The method comprises bringing the combustion gas into contact with a liquid including a solvent or reagent for the carbon dioxide and other acid gases...
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WO/1999/014178A1 |
This invention relates to methods of recycling catalyst in oxidations of hydrocarbons, such as cyclohexane for example, to respective intermediate oxidation products, such as adipic acid for example, by a direct process. The catalyst rem...
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WO/1999/013968A1 |
A method for removing acid gas components from combustion gas and natural gas. The method comprises bringing the gas mixture into contact with sea water and subjecting the gas mixture and sea water to turbulent mixing conditions. This ca...
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WO/1999/013967A1 |
Apparatus for separating carbon dioxide from flue gas, comprising a sea water supply member (35), a flue gas supply member (37), a plurality of turbulent contactors (31) and a gas/liquid separation vessel (33). Each turbulent contactor (...
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WO/1999/013966A1 |
A method of removing acid gas components from a gas mixture. The method comprises bringing the gas mixture into contact with a liquid solvent or reagent for the acid gases in a first turbulent contactor and subjecting the gas mixture and...
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WO/1999/013963A1 |
A method of removing carbon dioxide and other acid gas components from natural gas. The method comprises bringing the natural gas into contact with a liquid including a solvent or reagent for the carbon dioxide and other acid gases then ...
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WO/1999/014179A1 |
This invention relates to methods and reactor devices for controlling the oxidation of hydrocarbons to intermediate oxidation products, such as adipic acid for example, by removing the catalyst from the reaction mixture, outside the reac...
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WO/1999/013969A1 |
The use of a turbulent contactor to absorb a selected gas component from a gas stream. The invention particularly applies to a method of removing selected gas components from a gas stream which comprises: bringing the gas stream into con...
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WO/1999/010091A1 |
An absorber for absorbing a vapor into a sorbent liquid comprising vertical cylinders (1, 2) forming an annulus which is divided into multiple compartments by partitions consisting of cross-members (7) and perpendicular members (5). Vapo...
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WO/1999/010095A1 |
A system and method for removing a contaminant from a carrier gas is provided comprising the steps of: introducing a liquid into a fluid conduit, wherein the liquid is characterized by a first fluid flow rate and wherein the conduit is a...
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WO/1999/007460A1 |
An apparatus and method are provided for mixing gas and liquid. An impeller is rotatably mounted inside a draft tube having a constricted section. Rotation of the impeller draws liquid down through the constricted portion of the draft tu...
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WO/1999/005086A1 |
This invention relates to methods and devices of preparing acids, such as adipic acid for example, by oxidizing a hydrocarbon, such as cyclohexane for example, with a gas containing an oxidant, preferably oxygen. A respective hydrocarbon...
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WO/1999/003555A1 |
A tray assembly (100) for a chemical process tower (10) is disclosed. The tray assembly (100) may include first (102) and second (104) cooperating trays. The first and second trays (102, 104) have at least one active area (132a, 132b) wi...
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WO/1999/003575A1 |
The invention relates to a method and a device for introducing vibrations generated by a vibration generator (2) into pressure vessels. The vibrations can be transmitted via an assembly of rods (3) acting as vibration transmitter to a mo...
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WO/1999/002253A1 |
A basic industrial plant complex efficiently utilizing energy, products, byproducts, and waste materials between the basic industrial plants as a whole to totally improve energy efficiency and contribute to energy saving. The basic indus...
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WO/1998/055408A1 |
The invention relates to a method for treating biogenic residues, specially cafeteria leftovers, meat refuse, clarification sludge, organic industrial wastes and the like, wherein said residues are subjected to temperature pressure hydro...
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WO/1998/055403A1 |
A water charging machine wherein the water being treated is moved downwardly through a vertically extending outer vortex and then moved in an upwardly extending inner vortex within the outer vortex. Oxygen may be introduced into the stre...
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WO/1998/049091A1 |
A novel injector/reactor apparatus and an efficient process for the partial oxidation of light hydrocarbon gases, such as methane, to convert such gases to useful synthesis gas for recovery and/or subsequent hydrocarbon synthesis. Source...
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WO/1998/049092A1 |
A novel injector/reactor apparatus and an efficient process for the partial oxidation of light hydrocarbon gases, such as methane, to convert such gases to useful synthesis gas for recovery and/or subsequent hydrocarbon synthesis. Source...
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WO/1998/049093A1 |
A novel injector/reactor apparatus and an efficient process for the partial oxidation of hydrocarbon, such as methane, to convert such hydrocarbon to useful synthesis gas for recovery and/or subsequent hydrocarbon synthesis. Sources of a...
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WO/1998/041475A1 |
The invention concerns a process and an apparatus for the preparation of precipitated calcium carbonate. In the process, calcium hydroxide is carbonated using gaseous carbon dioxide, whereby the carbonation is performed in gaseous phase ...
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WO/1998/040414A1 |
The present invention relates to a continuous process for the production of polyadducts of alkylene oxide on a chain initiator with at least one active hydrogen. The process is characterised in that it comprises the step of: (a) providin...
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