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7582312 |
Methods to produce lung surfactant formulations via lyophilization and formulations and uses thereof
Methods of producing lung surfactant formulations through solvent dissolution and lyophilization are described as well as surfactant formulations derived therefrom. Methods of treating respiratory...
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7554002 |
Method for cold supply to the low-temperature separation stage of an olefin plant
A method is described for refrigerant supply of a low-temperature separation stage in a plant for producing olefins from hydrocarbon-containing feed (olefin plant). During the separation sequence...
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7435319 |
Process for the mild distillative separation of mixtures
The invention relates to a semibatchwise process for the mild distillative separation of mixtures, in a first stage a column being supplied continuously with a feed and the feed being separated at...
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7402716 |
Hybrid cubic/hexagonal diamondoids
Novel compounds having a hybrid cubic/hexagonal diamond crystal structure are disclosed. Each of the four compounds have the stoichiometric formula C 26 H 32 and a molecular weight of 344. The...
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7357902 |
Process for the removal of oxygen from olefin-containing process streams
Process for the removal of oxygen from a gas mixture comprising oxygen, at least one olefin, hydrogen, carbon monoxide and optionally at least one alkyne, the ratio of oxygen:hydrogen in the gas...
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7326820 |
System and method for purifying heptane
Removing impurities from a heptane stream by contacting the heptane stream with an acidic catalyst, wherein the contacting reduces a concentration of one or more close boiling impurities, one or...
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7326817 |
Process for reducing the toxicity of hydrocarbons
This invention relates to a method for reducing the toxicity of a mixture of hydrocarbons by means of fractional distillation, a distillate having a reduced toxicity and a composition including the...
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7326821 |
Removal of oxygenate from an olefin stream
This invention is to a process for removing dimethyl ether from an olefin stream. The process includes contacting the olefin stream with a molecular sieve that has improved capacity to adsorb the...
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7294749 |
Low pressure olefin recovery process
A low-pressure olefins recovery process and plant are described. The feed gas 300 is compressed 302, 304 and distilled 310 at a primary distillation pressure. The overhead stream 312 is...
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7288198 |
Removal of alcohols and water from a methylcyclopentadiene recycle stream in a process for the synthesis of methylcyclopentadienyl manganese tricarbonyl
During the process of synthesis of methylcyclopentadienyl manganese tricarbonyl (MMT), a key raw material methylcyclopentadiene (MCP) is used. The MCP component may be recycled for subsequent...
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7276105 |
Separation of water from Fischer-Tropsch product
A method for separating water from a Fischer-Tropsch reactor product stream in a cost effective and energy efficient manner which comprises feeding a Fischer-Tropsch product stream to a separation...
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7255792 |
Method for modifying an organic composition
There is provided a process for modifying a first organic composition comprising (i) at least one first solvent, (ii) at least one solute, and (iii) optionally, at least one second solvent to...
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7255777 |
Distillation system
Improved HETP is obtained in the operation of a distillation column containing trays with a packing of a porous container containing a particulate material intimately associated with a resilient...
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7241470 |
Method for monitoring the course of a process using a reactive gas containing one or several hydrocarbons
The method applies to a process such as cementation or chemical vapor infiltration or deposition, the process being carried out in an oven and the method comprising setting operating parameters of...
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7176341 |
Method and devices for producing naphthalene from coke produced from coke oven crude gas
A method and apparatus are disclosed for recovering pure naphthalene from hot crude coke oven gas. The hot crude coke oven gas is directly cooled by means of sprinkling water directly thereon, and...
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7173160 |
Processes for concentrating higher diamondoids
Hydroprocessing such as hydrocracking is advantageously employed in processes for the recovery and purification of higher diamondoids from petroleum feedstocks. Hydrocracking and other...
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7169267 |
Method and device for carrying out the distillative separation of C5+ cuts
A process is proposed for the separation of C 5+ cuts by distillation into a low-boiler (A), a medium-boiler (B) and a high-boiler fraction (C) in one or more dividing-wall columns (TK), in which...
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7125817 |
Combined cracking and selective hydrogen combustion for catalytic cracking
A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one...
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7126038 |
Method of removing entrained sulfuric acid from alkylate
An improvement in the alkylation of olefins with isoalkanes in the presence of sulfuric acid wherein the sulfuric acid is removed from the product by a mechanical coalescer means prior to...
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7122493 |
Combined cracking and selective hydrogen combustion for catalytic cracking
A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises:
(1) at least one solid acid component, (2) at...
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7122495 |
Combined cracking and selective hydrogen combustion for catalytic cracking
A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst system contains at least one solid acid component and at least one...
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7122492 |
Combined cracking and selective hydrogen combustion for catalytic cracking
A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one...
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7122494 |
Combined cracking and selective hydrogen combustion for catalytic cracking
A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one...
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7119244 |
Method of removing organic sulfur compounds from alkylate
A process for the removal of organic sulfur compounds, primarily oxygenated organic compounds, such as sulfates and sulfonic esters from a hydrocarbon liquid is disclosed which comprises contacting...
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7094943 |
Solution phase biopolymer synthesis
Multifunctional liquid phase carriers (LPCs) and methods of using LPCs for the preparation of biopolymers are provided. The LPCs are highly symmetrical compounds that possess more than two points...
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7060865 |
Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydrocarbons
Disclosed is a process for removing DME from a stream containing C4 olefins. The process includes providing a first stream comprising C4 olefins, C5+ hydrocarbons, DME, and methanol. The first...
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7038103 |
Solution phase biopolymer synthesis
Multifunctional liquid phase carriers (LPCs) and methods of using LPCs for the preparation of biopolymers are provided. The LPCs are highly symmetrical compounds that possess more than two points...
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7025872 |
Process for obtaining a feedstock that can be used in an etherification unit
Process for obtaining a hydrocarbon fraction that can be used as a feedstock of an etherification unit and that contains a small amount of diene compounds, nitrogen-containing compounds and...
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6861569 |
Processes for the purification of higher diamondoids and compositions comprising such diamondoids
Disclosed are processes for the recovery and purification of higher diamondoids from a hydrocarbonaceous feedstock. Specifically disclosed is a multi-step recovery process for obtaining diamondoid...
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6843851 |
Compositions comprising pentamantanes and processes for their separation
Disclosed are compositions comprising one or more pentamantanes. Specifically disclosed are compositions comprising 10 to 100 weight percent of one or more pentamantanes. Also disclosed are novel...
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6831202 |
Compositions comprising octamantanes and processes for their separation
Disclosed are compositions comprising one or more octamantanes. Specifically disclosed are compositions comprising 25 to 100 weight percent of one or more octamantanes. Also disclosed are novel...
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6828469 |
Compositions comprising heptamantane and processes for their separation
Disclosed are compositions comprising one or more heptamantanes. Specifically disclosed are compositions comprising 25 to 100 weight percent of one or more heptamantanes. Also disclosed are novel...
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6815569 |
Compositions comprising tetramantanes and processes for their separation
Disclosed are compositions comprising one or more tetramantanes. Specifically disclosed are compositions comprising 10 to 100 weight percent of one or more tetramantanes. Also disclosed are novel...
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6812370 |
Compositions comprising hexamantanes and processes for their separation
Disclosed are compositions comprising one or more hexamantanes. Specifically disclosed are compositions comprising 25 to 100 weight percent of one or more hexamantanes. Also disclosed are novel...
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6812371 |
Compositions comprising nonamantanes and processes for their separation
Disclosed are compositions comprising one or more nonamantanes. Specifically disclosed are compositions comprising 25 to 100 weight percent of one or more nonamantanes. Also disclosed are novel...
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6653469 |
Antibiotic purification method
Taught is a process for purifying a benzoquinoid ansamycin antibiotic such as geldanamycin through the use of a fluid comprising supercritical carbon dioxide. In certain embodiments the fluid also...
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6645369 |
Gas/liquid separation in a hydrocarbon conversion process
A gas/liquid(s) separation system is constituted by three different sections: a primary separator ( 1 ) for flows with a G/L in the range 0.1 to 10; a secondary separator ( 2 ) for flows with a G/L...
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6580010 |
Olefin recovery in an olefin production process
Disclosed is a method for recovering olefin in an oxygenate to olefin production process. The method includes reacting a stream containing olefin with water in the presence of a hydrating catalyst...
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6562573 |
Materials and methods for the purification of polyelectrolytes, particularly nucleic acids
This invention describes materials and methods usable for the purification of polyelectrolytes, such as nucleic acids and proteins. The materials of the invention are separation media that possess...
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6552242 |
Fractionation in light paraffin isomerization process
Fractional distillation performed to recover butane used as a desorbent component for adsorptive separation is integrated with the other fractionation of the raffinate stream of a C 5 -C 6 ...
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6500310 |
Process for the treatment of waste water
A process for treating waste water streams containing at least hydrocarbons and salts to yield a clean water product, a concentrated brine product and a hydrocarbon-rich product, which process...
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6485613 |
Batch-continuous countercurrent mass transfer process
Mass transfer process, in which, in at least two contact stages, and at least two liquid or gaseous phases are brought into contact with one another, at least one component being transferred...
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6483000 |
Process for the manufacture in pure form of 1-pentene or an alpha-olefin lower than 1-pentene
The invention relates to a process for the recovery as a feedstock of an alpha-olefin from a mixture containing mainly hydrocarbon compounds, such as is obtained by Fischer-Tropsch-synthesis after...
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6468399 |
Process for isolating cyclopentane and/or cyclopentene
Cyclopentane and/or cyclopentene and, if desired, isopentane can be obtained by distillative separation from a pre-benzene fraction or a C 5 fraction which has in each case being partially...
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6433242 |
Process for fractionating dibutene
The invention relates to a process for separating dibutenes into an n-octene-containing fraction and a dimethylhexene-containing fraction. The fractions can be processed further separately to the...
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6419888 |
In-situ removal of carbon dioxide from natural gas
A process is provided for the in-situ removal of carbon dioxide out of natural gas by diverting a stream of the natural gas to a hydrocarbon reformation unit, which converts this diverted stream of...
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6410812 |
Process for recovering boron trifluoride from a catalyst complex
In a process for the oligomerization of alpha olefins using a boron trifluoride/alcohol catalyst complex a method for recovering the boron trifluoride from the product stream which comprises...
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6376732 |
Wetted wall vapor/liquid separator
A centrifugal vapor/liquid separator separates the vapor and liquid in a flash of hydrocarbon and steam mixture, such that only the vapor stream is fed and processed further downstream. The design...
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6364914 |
Method of crystallization with the particle size distribution being controlled
Herein is disclosed a method of crystallization with the particle size distribution being controlled, characterized in that while crystals are being precipitated by vacuum concentration...
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6362386 |
Method and device for obtaining isobutenes from conjugated hydrocarbons
A process for isolating isobutene from a hydrocarbon mixture by a) combining the C 4 -hydrocarbon mixture with a primary C 3 - or C 4 -alkanol; b) reacting the isobutene in the C 4 -hydrocarbon...
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