Abstract:
PROBLEM TO BE SOLVED: To provide a method for catalytic hydrogenation of a silicon-containing hydrocarbon supplying raw material. SOLUTION: The method for catalytic hydrogenation of a silicon compound-containing hydrocarbon supplying raw material comprises a process for bringing the supplying raw material into contact with a first hydrogenation catalyst in the presence of hydrogen at an outlet temperature of up to 410°C to reduce the content of the silicon compound in the supplying raw material, a process for cooling the thus treated supplying raw material to a temperature of 280-350°C, and a process for bringing the cooled supplying raw material into contact with a second hydrogenation catalyst under an effective condition to decrease the concentrations of sulfur compounds and nitrogen compounds, wherein the first hydrogenation catalyst is positioned in at least two serially connected reaction vessels. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for removing polynuclear aromatic compounds (PNA) in a hydrocracking process. SOLUTION: The raw material oil is hydrocracked in a hydrocarbon reactor 4 and an unconverted fraction 11 separated from the liquid products in a fractionation zone 9 is recycled to the hydrocarbon reactor after the polynuclear aromatic compounds (PNA) contained therein are removed by adsorption by an adsorbent based on alumina-silica having a controlled macropore content as a pore volume measured by the mercury porosimetry in adsorption zones 17 and 18. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for selectively, wholly or partially removing polynuclear aromatic compounds (PNA) which accumulate on a catalyst thereby causing a loss of catalytic capacity or the total deactivation of the catalyst in a hydrocracking process with a recycle loop. SOLUTION: The improved hydrocracking process with recycle comprises a step for removing the polynuclear aromatic compounds from at least a portion of a fraction to be recycled by adsorption on a specific adsorbent based on alumina-silica having a controlled macropore content. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
A method and apparatus for an improved dewatering tank system that allows for safely controlling a water stream exiting the dewatering tank system. The apparatus can include a sound velocity detector, a control system, and a control element. The sound velocity detector can include a transducer, a detector, and a transmitter. The control system can include a computer and a program product. The apparatus can optionally include a dewatering tank, a drain line, and a controllable valve. The apparatus allows for transmitting sound energy through the water stream flowing in the drain lined that is connected to the dewatering tank, calculating the velocity of the sound energy as the sound energy travels through the water stream, monitoring the velocity of the sound energy for a period of time, and controlling the position of the controllable valve depending on the calculated velocity of the sound energy.
Abstract:
A method and an apparatus for preparing fatty acid alkyl ester for bio-diesels are disclosed, wherein fatty acid, specifically fatty acid distillate reacts with alcohol, without a catalyst. The method does not require the purification process of the catalyst and glycerin, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester for bio-diesel fuels comprises the step of esterifying fatty acid raw material with alcohol, under a temperature of 200 to 350° C. and a pressure of atmospheric pressure to 10 bar. The apparatus for preparing fatty acid alkyl ester for bio-diesel fuels, comprises: the first reactor for esterifying fatty acid raw material with alcohol under a temperature of 200° C. to 350° C. and a pressure of atmospheric pressure to 10 bar and for converting 80 to 90% of total fatty acid into fatty acid alkyl ester; and the second reactor for converting remaining fatty acid unconverted at the first reactor into fatty acid alkyl ester.
Abstract:
An amine solvent solution that is useful in absorbing acid gases from a liquid or gas feed stream may have an amine additive added thereto. Additionally or alternatively, the amine additive may be added to a liquid or gas feed stream. The addition of the amine additive decreases the presence of amine-derived contaminants and/or degradation of amine in the amine solvent solution. As such, the amine solvent solution is available for effective reuse in treating the liquid or gas feed stream and there may be a decrease in the corrosion within an amine treating system.
Abstract:
An extraction aid has been found which provides for enhanced contaminate removal, such as metals and amines, from crude oils that uses components that are desirable in desalting processes as the components are water soluble, have low toxicity, are highly biodegradeable and exhibit high thermal stability. According to one embodiment of the invention, an extraction aid that provides enhanced extraction properties is comprised of a blend of acids, particularly water soluble acids. More specifically, a combination of two acids chosen from the group consisting of acetic acid, sulfuric acid, glycolic acid, citric acid and methanesulfonic acid.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for removing impurities from a heavy fuel, particularly, a technique of lowering a level of metal or non-metal impurities in the heavy oil. SOLUTION: An adsorption column 100 for removing impurities from the heavy fuel is provided. The adsorption column is a stationary column equipped with two or more baffles 114 and 116 arranged in the column, and is configured to have a plurality of adsorption material particles 106 therein. The adsorption material particles each have an average specific surface area of about 500 m 2 /g to about 1,200 m 2 /g, and an average fine pore volume of about 0.8 cc/g or more, an average diameter of about 5 μm to about 100 μm, and a particle size distribution wherein at least about 50% of the particles have a diameter greater than about 18 μm. COPYRIGHT: (C)2010,JPO&INPIT