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8178061 |
Propylene recovery during regeneration of an oxygenate removal unit
Processes and systems are disclosed that relate to the removal of impurities and separation the light olefins from an MTO product vapor stream. Specifically, the processes and systems relate to...
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8163047 |
Methods and apparatus for cooling syngas in a gasifier
A method of cooling hot fluid flowing through a chamber is provided. The method includes channeling cooling fluid through at least one cooling tube that extends through a passage of the chamber,...
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8147765 |
Apparatus for hydrogen and carbon production via carbon aerosol-catalyzed dissociation of hydrocarbons
A novel process and apparatus is disclosed for sustainable, continuous production of hydrogen and carbon by catalytic dissociation or decomposition of hydrocarbons at elevated temperatures using...
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8075856 |
Multiple reactor chemical production system
The present invention is a multiple reaction set for the production of chemicals by equilibrium limited reactions utilizing plate-type or extended surface heat exchangers. The heat exchangers...
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8057666 |
Biomass and waste plastics to neodiesel and valuable chemicals via supercritical water
A supercritical fluid polymer depolymerization machine is disclosed herein, which machine is capable of converting a wide range of biomass and/or waste plastic materials into a plurality of...
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8052945 |
Apparatus for oligomerization in multiple stages with single fractionation column
In an oligomerization apparatus comprising at least two oligomerization reactors, at least portions of product streams from two reactors are separated in the same separator vessel; a liquid product...
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7927565 |
Nozzle reactor and method of use
A nozzle reactor system for increasing the conversion rate of material feed injected into the nozzle reactor system. The system includes two or more nozzle reactors aligned in series, such that...
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7862783 |
Separation process for methyl acetate hydrolysis and apparatus thereof
A separation system for a methyl acetate hydrolysis is provided. The separation system comprises a reactive distillation system, a reflux system, a first separation system and a second separation....
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7837971 |
Sulfur refining process
A process comprising contacting a solvent with a sulfur stream comprising sulfur and a contaminant, separating the sulfur from at least some of the contaminant and at least some of the solvent,...
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7763216 |
Chemical reactor and fuel cell system
A chemical reactor includes a first reaction section which has a first flow path and causes a first reaction in the first flow path. A heating section heats the first reaction section. A second...
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7763169 |
Magnetic separation device
A magnetic separation device, comprising: a separator, including a top base and a bottom base; at least a groove set, each composed of two arc-like grooves having curvatures opposite to each other;...
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7717971 |
Process for the production of synthesis gas
Process and system for the production of synthesis gas from a hydrocarbon feed stock comprising the steps of endothermic and/or adiabatic catalytic steam reforming and autothermal steam reforming...
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7708955 |
Staged alkylation in microchannels
The invention provides methods and systems for alkylating a paraffinic feed stream in a microchannel utilizing the staged addition of olefin.
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7642377 |
Systems and methods for integrated ammonia-urea process
Systems and methods for producing urea are provided. A method for producing urea can include exchanging heat from a syngas comprising hydrogen and carbon dioxide to a urea solution comprising urea...
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7452515 |
System for creating a biofuel
A system for making a biodiesel fuel using a biofuel reactor with at least one chamber and at least a two atomizers in each chamber, at least one atomizer with biofuel feedstock nozzles, and a...
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7304125 |
Process for the preparation of polymers from polymer slurries
A process for manufacturing a polymer having a molecular weight in excess of 5,000, and preferably in excess of 40,000, comprises, producing a polymerized reaction mass in which the polymer is...
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7112311 |
Cooling method of hydrotreating plant and cooling unit therefor
A cooling method of a hydrotreating plant having a desulfurization section (1) including a furnace (12) for heating liquid to be processed, reactors (14, 15) for hydrotreating sulfur to generate...
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7074958 |
Integrated process for urea/melamine production and related plant
An integrated process for urea/melamine production. In the process, urea is synthesized from ammonia and carbon dioxide, obtaining molten urea and a gaseous mixture comprising steam and ammonia....
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7011740 |
Catalyst recovery from light olefin FCC effluent
A method and system for recovering fines from a light FCC-type effluent gas. Cracked gases from the reactor are cooled by direct contact with circulating oil in an oil quench tower. The circulating...
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6989135 |
Hydrocarbon conversion system with enhanced combustor and method
A Fischer-Tropsch-based hydrocarbon conversion process involves compressing air in a compressor section of a gas turbine, delivering a portion of the compressed air to a combustor of the gas...
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6979426 |
Biodiesel production unit
In a first aspect, systems and methods for producing biodiesel fuel include a modular production unit incorporated onto a single platform or into a housing for ease of relocatability. The modular...
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6946570 |
Ester synthesis
This invention relates to a process for the production of lower aliphatic esters by reacting a lower olefin with a saturated lower aliphatic mono-carboxylic acid in the vapor phase in the presence...
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6855294 |
Apparatus and methods for efficient generation of chlorine dioxide
An apparatus and methods for chlorine dioxide generation. The chlorine dioxide apparatus may comprise a plurality of metering pumps for delivering a plurality of reactant chemicals. The reactant...
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6733659 |
Reactor for hydrotreating and process for producing ultralow sulfur heavy oils by the use of the reactor
An object is to provide a reactor for hydrotreating which exhibits a total desulfurizing activity higher than that of the reactor according to the prior art, and which is reduced in the rate of...
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6685892 |
Process and apparatus for controlling reaction temperatures
A process and apparatus for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium performs heat exchange in a first reaction zone...
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6660236 |
Apparatus for decomposition and recovery of polyurethane resin
Apparatus for decomposing a polyurethane resin and recovering the decomposed polyurethane resin as a polyamine compound and a polyol compound. The apparatus includes a first reactor that decomposes...
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6610112 |
Method for oil gasification
The present invention relates to a method for oil gasification. In particular, the present invention relates to a method for oil gasification while reducing wastewater and costly purification...
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6572835 |
Method and apparatus for producing gaseous sulfur trioxide
An apparatus and method for producing sulfur comprises a vessel containing a plurality of spaced-apart channels each having an upstream end communicating with an upstream manifold and a downstream...
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6503465 |
Two-stage isomerization of saturated C6 hydrocarbons
A process and/or system is provided for isomerizing a hydrocarbon feedstock comprising saturated C6 hydrocarbons by contacting the hydrocarbon feedstock, in the presence of hydrogen and optionally...
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6334984 |
Hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution
A hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution advantageously comprises a dividing baffle extending horizontally at a...
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6277338 |
System for converting light hydrocarbons to heavier hydrocarbons with separation of water into oxygen and hydrogen
A system for converting light hydrocarbons to heavier hydrocarbons having a synthesis gas production unit and a hydrocarbon synthesis unit. For one application the synthesis gas production unit...
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6191332 |
Method and apparatus for dehydrogenating aliphatic hydrocarbons to olefinic hydrocarbons
The specification describes a method and a fixed bed apparatus for producing olefinic hydrocarbons from a charge of saturated aliphatic hydrocarbons with 2 to 20 carbon atoms and hydrogen in a...
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6174501 |
System and process for producing biodiesel fuel with reduced viscosity and a cloud point below thirty-two (32) degrees fahrenheit
Triglycerides are reacted in a liquid phase reaction with a homogeneous basic catalyst and alcohol, such as ethanol or methanol. The reaction yields a spatially separated two phase result with an...
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6159433 |
Plant for the conversion of olefinic C4 and C5 cuts to an ether and to propylene
The present invention concerns a plant for the conversion of an olefinic C4 or C5 cut to an alkyl-tertiobutylether or alkyl-tertioamylether and to propylene, by metathesis. The plant comprises four...
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6033629 |
Ashing furnace
A furnace includes an enclosure and a hearth plate within the enclosure for supporting combustible material. The furnace further includes a first heater element adjacent the hearth plate for...
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5961932 |
Reaction chamber for an integrated micro-ceramic chemical plant
An integrated micro-ceramic chemical plant having a unitary ceramic body formed from multiple ceramic layers in the green state which are sintered together includes a unitary ceramic body defining...
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5844111 |
Method for purifying an inert gas while preparing lower alkyl esters
A process for purifying an inert gas stream from a transesterification reaction wherein a lower alkyl alcohol is released during the reaction is claimed. A second use of the process is to make a...
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5779992 |
Process for hydrotreating heavy oil and hydrotreating apparatus
A hydrotreating apparatus comprising (a') a fixed-bed reactor packed with a hydrotreating catalyst for hydrotreating a heavy oil and (b') a suspended-bed reactor packed with a hydrotreating...
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5779994 |
Tubular reactor
A variable tubular reactor is described which contains a plurality of parallel reaction tubes held between two tube plates in a cooling medium container. The reaction tubes are connected outside of...
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5720929 |
Device for catalytic dehydrogenation of a C2+ paraffinic charge comprising means for inhibiting the freezing of water in the effluent
A device for the catalytic dehydrogenation of a C2+ paraffinic hydrocarbon charge is applicable to the synthesis of methyl tert-butyl ether. Effluent coming from the dehydrogenation reactor and...
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5649281 |
Alkylation with separate alkylation of isobutane with pentenes
A process is provided to react a feedstock comprising isobutane with pentenes in the presence of sulfuric acid catalyst to produce a high octane alkylate as well as a higher octane isopentane...
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5493059 |
Process for preparing tertiary alkyl ethers and apparatus for reactive distillation
A process for the preparation of tertiary alkyl ethers, in particular methyl-tert.-butyl-ether (MTBE), from iso-olefins and aliphatic alcohols by means of a fractionation tower is disclosed, in...
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5482682 |
Apparatus for direct fluorination of a hydrocarbon by molecular fluorine gas
The present invention relates to a method and apparatus for direct fluorination of hydrocarbons (having 1 to 4 carbons) by using molecular fluorine gas in a liquid medium. The number of reactors or...
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5405590 |
Off-gas scrubber system
An off-gas quencher and solid recovery scrubber unit includes a wet flue gas scrubber which has the dual responsibilities of lowering the temperature of the inlet hot gas entering through the...
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5348707 |
Apparatus for ether production
A multistage catalytic reactor system for preparing ethers such as methyl t-butyl (MTBE) and t-amyl methyl ether (TAME) from iso-olefin and methanol, comprising a first reactor for contacting the...
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5284630 |
Apparatus for production of acetylene
A two-stage process for producing acetylene and calcium chloride from calcium carbide and water has two successive reaction steps. In step Number 1, calcium carbide is charged into an entrained...
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5186908 |
Increased conversion of C2 -C12 aliphatic hydrocarbons to aromatic hydrocarbons using a highly purified recycle stream
An improved aromatization apparatus is disclosed in which conversion is increased by recycling a highly purified C2 -C4 aliphatic stream. Loss of valuable ethane to fuel gas is substantially...
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5138102 |
Reactor quenching for catalytic olefin hydration in ether production
A process for production of ether by hydration and etherification of olefinic feedstock containing at least one lower alkene by contacting the olefinic feedstock and water in a plurality of...
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5130101 |
Reactor system for conversion of alcohols to ether-rich gasoline
Methanol or other alcohol is converted to high octane gasoline components in an integrated apparatus wherein crude aqueous alcohol feedstock is extracted with a liquid extractant stream containing...
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5108719 |
Reactor system for ether production
Isopentene, or isoamylene, conversion to methyl tert-amyl ether can be substantially improved while high conversion of isobutylene to methyl tert-butyl ether can be maintained by carrying out the...
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