Class / Patent application number | Description | Number of patent applications / Date published |
208289000 | With nitrogen containing compound | 9 |
20090301936 | COMPOSITION AND USE THEREOF - The present technology relates to a method of treating hydrocarbon compositions such as crude oils to reduce or prevent naphthenate soap problems in upstream and downstream processes. It also relates to compositions for this use, for example. | 12-10-2009 |
20100206777 | COMPOSITIONS AND METHODS FOR COAGULATING SILICA FROM MINERAL PROCESSING STREAMS - This idea relates to the use of polyalkylene glycols and non-salt polyether amines to improve the effectiveness of silica removal by coagulation and agglomeration of colloidal silica particles in aqueous mineral process streams. | 08-19-2010 |
20100236990 | Bubble separation to remove haze and improve filterability of lube base stocks - Provided is a bubble generating process used to treat dewaxed lube base stocks to improve their filterability, hazy appearance or both. In one form, the process for improving at least one of haze appearance and filterability of a dewaxed lubricating oil basestock contained in a storage vessel includes contacting the lubricating oil basestock with gas bubbles passed through a gas distribution grid for a time sufficient to form a mixture of froth and gas treated basestock, allowing the mixture of froth and gas treated basestock to settle for a time sufficient to form a froth layer and a gas treated basestock layer, and separating the froth layer from the gas treated basestock layer, wherein a basestock having improved haze, improved filterability or both may be isolated from the gas treated basestock layer. | 09-23-2010 |
20110147275 | POLYALKYLENE EPOXY POLYAMINE ADDITIVES FOR FOULING MITIGATION IN HYDROCARBON REFINING PROCESSES - The present invention provides a method for reducing fouling, including particulate-induced fouling, in a hydrocarbon refining process including the steps of providing a crude hydrocarbon for a refining process and adding an antifouling agent containing a polymer base unit and a polyamine group to the crude hydrocarbon. The antifouling agent can be obtained by reacting an epoxidation reagent with a vinyl-terminated polymer, such as polypropylene or poly(ethylene-co-propylene), to form a terminal epoxy group, followed by reacting a polyamine with the epoxy group. | 06-23-2011 |
20120012507 | USE OF ALPHA-AMINO ETHERS FOR THE REMOVAL OF HYDROGEN SULFIDE FROM HYDROCARBONS - The invention provides a method of removing hydrogen sulfide from hydrocarbon fluids. The method involves using an alpha-amino ether as a hydrogen sulfide scavenger. This allows for the introduction of an oil soluble scavenger in lieu of water-soluble scavengers. | 01-19-2012 |
20120298558 | FUNCTIONALIZED FILTERS FOR HEAVY OIL UPGRADING - This invention relates to a process for separating a hydrocarbon stream via a filtration process to produce an upgraded permeate stream with decreased Conradson Carbon Residue (“CCR”) content. The invention involves the modification of a porous ceramic filter by functionalizing the surface of the ceramic filter with an multi-ring aromatic-diimide polymer. Preferably, the multi-ring aromatic-diimide polymer is comprised of a multi-ring aromatic monomer component. The functionalized filters of the present invention can be used in a process to selectively separate components of a hydrocarbon stream to produce an improved permeate (or “filtrate”) product stream with a lower CCR content and improved processing capabilities. The functionalized filters of the present invention are particularly beneficial in filtration processes for upgrading heavy hydrocarbon feedstreams, such as whole crudes, topped crudes, synthetic crude blends, shale oils, oils derived from bitumens, oils derived from tar sands, atmospheric resids, vacuum resids, or other heavy hydrocarbon streams. | 11-29-2012 |
20130008830 | POLYALKYLENE CARBOXYLIC ACID POLYAMINE ADDITIVES FOR FOULING MITIGATION IN HYDROCARBON REFINING PROCESSES - Methods and systems for reducing fouling, including particulate-induced fouling, in a hydrocarbon refining process including the steps of providing a crude hydrocarbon for a refining process and adding an antifouling agent containing a polymer base unit and a polyamine group to the crude hydrocarbon are provided. The antifouling agent can be obtained by converting a vinyl terminated polymer, such as polypropylene or poly(ethylene-co-propylene), to a terminal acyl containing functional group, followed by reacting the terminal acyl containing functional group with a polyamine compound. | 01-10-2013 |
20140042059 | PROCESS FOR PRODUCTION OF BENZENE LEAN GASOLINE BY RECOVERY OF HIGH PURITY BENZENE FROM UNPROCESSED CRACKED GASOLINE FRACTION CONTAINING ORGANIC PEROXIDES - Disclosed is a process for production of benzene lean gasoline by recovery of high purity benzene from a narrow boiling benzene concentrated unprocessed cracked gasoline fraction. The process involves subjecting the feed material to an extractive distillation (ED) operation using an aromatic selective solvent in combination with a co-solvent. | 02-13-2014 |
20160002543 | METHOD FOR PRODUCING NON-CARCINOGENIC AROMATIC PROCESS OIL - The present invention relates to the chemical or petroleum-processing industry and can be used in the production of petroleum plasticizers for synthetic rubber and tyres. In the method for producing non-carcinogenic aromatic process oil, containing a PCA extract of less than 3.0% according to the IP-346 method, said method comprising purifying the oil fractions of petroleum with selective solvents and separating the extract, additionally processing the extract with a polar solvent and producing a raffinate as the end product, the polar solvent used is a mixture of dimethylsulphoxide and Nmethylpyrrolidone, which is used for preliminary processing of the extract, wherein, after the preliminary processing, the mixture of extract and polar solvent is filtered, divided and the light phase is sent to the additional processing of the extract with the polar solvent, and the heavy phase is sent to a polar solvent regeneration stage. The ratio of dimethylsulphoxide to N-methylpyrrolidone in the mixture is within the range of 1:0.1-0.5. The ratio of polar solvent to extract in the additional processing stage is within the range of 1.5-2.5:1. The ratio of polar solvent to extract in the preliminary processing stage is within the range of 0.1-0.3:1. The technical result consists in increasing the efficiency of the process by preventing the formation of an intermediate layer in the extractor column, by reducing the ratio of solvent:extract, and, as a consequence, by increasing the productivity of the plant, simplifying the process of drying the solvent, and eliminating a paraffin-naphthene solvent, which substantially simplifies the regeneration of extractant from the raffinate solution. | 01-07-2016 |