Patent application number | Description | Published |
20110062058 | METHOD FOR DETERMINING ASPHALTENE STABILITY OF A HYDROCARBON-CONTAINING MATERIAL - A method for determining asphaltene stability in a hydrocarbon-containing material having solvated asphaltenes therein is disclosed. The method involves the steps of: (a) precipitating an amount of the asphaltenes from a liquid sample of the hydrocarbon-containing material with an alkane mobile phase solvent in a column; (b) dissolving a first amount and a second amount of the precipitated asphaltenes by gradually and continuously changing the alkane mobile phase solvent to a final mobile phase solvent having a solubility parameter at least 1 MPa | 03-17-2011 |
20110066441 | METHOD FOR PREDICTING REACTIVITY OF A HYDROCARBON-CONTAINING FEEDSTOCK FOR HYDROPROCESSING - Disclosed herein is a method involving the steps of (a) precipitating an amount of asphaltenes from a liquid sample of a first hydrocarbon-containing feedstock having solvated asphaltenes therein with one or more first solvents in a column; (b) determining one or more solubility characteristics of the precipitated asphaltenes; (c) analyzing the one or more solubility characteristics of the precipitated asphaltenes; and (d) correlating a measurement of feedstock reactivity for the first hydrocarbon-containing feedstock sample with a mathematical parameter derived from the results of analyzing the one or more solubility characteristics of the precipitated asphaltenes. | 03-17-2011 |
20110077311 | METHOD FOR HANDLING VISCOUS LIQUID CRUDE HYDROCARBONS - A method for handling viscous liquid crude hydrocarbons is disclosed. The method involves (a) obtaining an emulsion comprising an aqueous fraction and a liquid crude hydrocarbon fraction, wherein the liquid crude hydrocarbon fraction has a first viscosity and contains an oil-soluble compound that reversibly converts to a surfactant under basic conditions, and further wherein the emulsion has a second viscosity that is less than the first viscosity of the liquid crude hydrocarbon fraction; and (b) breaking the emulsion by contacting the emulsion with a carbon dioxide-containing material to convert at least a portion of the surfactant to the oil-soluble compound. | 03-31-2011 |
20120090220 | Method and System for Processing Viscous Liquid Crude Hydrocarbons - A method and system for handling viscous liquid crude hydrocarbons is disclosed. The method involves (a) solvent deasphalting at least a portion of an asphaltene-containing liquid crude hydrocarbon feedstock to form an asphaltene fraction and a deasphalted oil (DAO) fraction essentially free of asphaltenes; (b) adjusting the density of the asphaltene fraction to substantially the same density of a carrier for the asphaltene fraction; (c) forming coated asphaltene particles from the asphaltene fraction of step (b); (d) slurrying the coated asphaltene particles with the carrier; and (e) transporting the slurry to a treatment facility or a transportation carrier. | 04-19-2012 |
20120160015 | METHODS FOR PREDICTING FOULING TENDENCIES OF HYDROCARBON CONTAINING FEEDSTOCKS - Disclosed is a method involving the steps of (a) precipitating an amount of asphaltenes from a liquid sample of a first hydrocarbon-containing feedstock having solvated asphaltenes therein with one or more first solvents in a column; (b) determining one or more solubility characteristics of the precipitated asphaltenes; (c) analyzing the one or more solubility characteristics of the precipitated asphaltenes; and (d) correlating a measurement of feedstock fouling tendencies for the first hydrocarbon-containing feedstock sample with a mathematical parameter derived from the results of analyzing the one or more solubility characteristics of the precipitated asphaltenes. | 06-28-2012 |
20130118951 | METHOD FOR PREDICTING CATALYST PERFORMANCE - Disclosed herein is a method involving the steps of: (a) precipitating an amount of polyaromatic compounds from a liquid sample of a first hydrocarbon-containing feedstock having solvated polyaromatic compounds therein with one or more first solvents in a column; (b) determining one or more solubility characteristics of the precipitated polyaromatic compounds; (c) analyzing the one or more solubility characteristics of the precipitated polyaromatic compounds; and (d) correlating a measurement of catalyst activity performance for the first hydrocarbon-containing feedstock sample with a mathematical parameter derived from the results of analyzing the one or more solubility characteristics of the precipitated polyaromatic compounds to predict catalyst performance of a catalyst in a refinery operation of the hydrocarbon-containing feedstock. | 05-16-2013 |
20130124105 | METHOD FOR PREDICTING SEDIMENT CONTENT OF A HYDROPROCESSED HYDROCARBON PRODUCT - Disclosed herein is a method of predicting sediment content of a hydroprocessed hydrocarbon product. The method involves: (a) precipitating an amount of asphaltenes from a liquid sample of a first hydrocarbon-containing feedstock having solvated asphaltenes therein with one or more first solvents; (b) determining one or more solubility characteristics of the precipitated asphaltenes; (c) analyzing the one or more solubility characteristics; (d) determining asphaltene content of the liquid sample from the results of analyzing the one or more solubility characteristics; (e) determining one or more asphaltene stability parameters of the liquid sample from the results of analyzing the one or more solubility characteristics; and (f) correlating the asphaltene content and one of the asphaltene stability parameters of the liquid sample with at least two operation conditions associated with a refinery to predict sediment content. | 05-16-2013 |
20130124106 | METHOD FOR ESTIMATING SEDIMENT CONTENT OF A HYDROPROCESSED HYDROCARBON-CONTAINING FEEDSTOCK - Disclosed herein is a method of estimating sediment content of a hydroprocessed hydrocarbon-containing feedstock. The method involves the steps of: (a) precipitating an amount of asphaltenes from a liquid sample of a first hydroprocessed hydrocarbon-containing feedstock having solvated asphaltenes therein with one or more first solvents in a column; (b) determining one or more solubility characteristics of the precipitated asphaltenes; (c) analyzing the one or more solubility characteristics of the precipitated asphaltenes; (d) determining asphaltene content of the liquid sample from the results of analyzing the one or more solubility characteristics of the precipitated asphaltenes; (e) determining one or more asphaltene stability parameters of the liquid sample from the results of analyzing the one or more solubility characteristics of the precipitated asphaltenes; and (f) correlating the asphaltene content and one of the asphaltene stability parameters of the liquid sample to estimate sediment content of the liquid sample. | 05-16-2013 |
20150114635 | PROCESS FOR IN SITU UPGRADING OF A HEAVY HYDROCARBON USING ASPHALTENE PRECIPITANT ADDITIVES - Disclosed is a process for in situ upgrading of a heavy hydrocarbon comprising the steps of: (a) positioning a well in a reservoir containing a heavy hydrocarbon having an initial API gravity of less than or equal to about 20, an n-heptane asphaltene content as measured by the ASTM D-6560 of at least about 1 wt. %, and a viscosity at 35° C. greater than about 350 centistokes (cSt); (b) injecting one or more hydrocarbon solvents and one or more asphaltene precipitant additives into the well in any order at a ratio by volume of the solvent to the heavy hydrocarbon of at least from about 0.1:1 to about 20:1 under reservoir conditions so as to provide an upgraded hydrocarbon in the reservoir, wherein the upgraded hydrocarbon has an improved API gravity greater than the initial API gravity, a reduction in the asphaltene content, and a lower viscosity; and (c) producing the upgraded hydrocarbon from the well. The process of the present invention can be also carried out at higher temperatures such as by injecting steam with the one or more hydrocarbon solvents and the one or more asphaltene precipitant additives into the well in any order. | 04-30-2015 |
Patent application number | Description | Published |
20090054427 | AMINOBENZYL-SUBSTITUTED CYCLIC SULFONES USEFUL AS BACE INHIBITORS - The invention relates to novel heterocyclic compounds of the formula | 02-26-2009 |
20090247577 | PYRROLIDINE DERIVATIVES USEFUL AS BACE INHIBITORS - Novel 3-mono-, 3,4-di- and 3,4,4,-tri-substituted pyrrolidine compounds, these compounds for use in the diagnostic and therapeutic treatment of a warm-blooded animal, especially for the treatment of a disease (disorder) that depends on the activity of beta-secretase and/or the generation of beta-amyloid and the subsequent aggregation into oligomers and fibrils; the use of a compound of that class for the preparation of a pharmaceutical formulation for the treatment of a disease that depends on the activity of beta-secretase and/or the generation of beta-amyloid and the subsequent aggregation into oligomers and fibrils; pharmaceutical formulations comprising a said substituted pyrrolidine compound, and/or a method of treatment comprising administering a said substituted pyrrolidine compound. The substituted pyrrolidine compounds are especially of the formula I, | 10-01-2009 |
20100056490 | Cyclic sulfones with aminobenzyl substitution useful as BACE inhibitors - The invention relates to novel heterocyclic compounds of the formula | 03-04-2010 |
20120258954 | ArylSulfonamide Based Matrix Metalloprotease Inhibitors - The present invention provides a compound of formula (I): | 10-11-2012 |
20120295884 | Complement pathway modulators and uses thereof - The present invention provides a compound of formula I: | 11-22-2012 |
20130096105 | ArylSulfonamide Based Matrix Metalloprotease Inhibitors - The present invention provides a compound of formula (I): | 04-18-2013 |
20150045398 | ArylSulfonamide-Based Matrix Metalloprotease Inhibitors - The present invention provides a compound of formula (I): | 02-12-2015 |
20150141455 | COMPLEMENT PATHWAY MODULATORS AND USES THEREOF - The present invention provides a compound of formula I: (I) a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition. | 05-21-2015 |
20150148349 | COMPLEMENT PATHWAY MODULATORS AND USES THEREOF - The present invention provides a compound of formula (I): a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition. | 05-28-2015 |
20150148374 | COMPLEMENT PATHWAY MODULATORS AND USES THEREOF - The present invention provides a compound of formula I: a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition. | 05-28-2015 |
20150190457 | PYRROLIDINE DERIVATIVES AND THEIR USE AS COMPLEMENT PATHWAY MODULATORS - The present invention provides a compound of formula (I) a method for manufacturing the compounds of the invention, and its therapeutic uses as complement pathway modulators for the treatment of ocular diseases. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition. | 07-09-2015 |
20150191462 | PYRROLIDINE DERIVATIVES AND THEIR USE AS COMPLEMENT PATHWAY MODULATORS - The present invention provides a compound of formula I: (I) a method for manufacturing the compounds of the invention, and its therapeutic uses as complement alternative inhibitors for the treatment of ocular diseases. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition. | 07-09-2015 |
20150322060 | PYRROLIDINE DERIVATIVES AND THEIR USE AS COMPLEMENT PATHWAY MODULATORS - The present invention provides a compound of formula (I) a method for manufacturing the compounds of the invention, and its therapeutic uses as a factor D inhibitor for the treatment of ophthalmic diseases. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition. | 11-12-2015 |