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60results about How to "Maintain production" patented technology

Method for producing water-insoluble liquefied fuel oil from biomass

A method for producing a water-insoluble liquefied fuel oil containing a hydrocarbon from biomass is provided, comprising converting an oxygen-containing compound in a liquefied fuel oil obtained after liquefaction to a hydrocarbon and converting a water-soluble organic substance contained in an aqueous phase to a hydrocarbon, thereby improving the yield of the water-insoluble liquefied fuel oil. The method for producing a water-insoluble liquefied fuel oil containing a hydrocarbon comprises the steps of: subjecting a mixture that contains biomass containing lignocellulose, an organic solvent, and water to liquefaction; simultaneously with or after liquefaction, causing a mixture of the liquefied fuel oil that contains the organic solvent and an aqueous phase that contains a water-soluble organic substance to come into contact with a dehydration catalyst under pressure and then subjecting the resultant to dehydration, or causing a mixture of the liquefied fuel oil that contains the organic solvent and an aqueous phase that contains a water-soluble organic substance to come into contact with hydrogen in the presence of a hydrogenation catalyst under pressure, and then subjecting the resultant to hydrogenation; and separating a water-insoluble liquefied fuel oil from the mixture after dehydration or hydrogenation.
Owner:TOYOTA JIDOSHA KK

Fluid catalytic cracking catalyst having desulfurizing functions, process for production of the same, and process for production of low-sulfur catalytically cracked gasoline with the catalyst

The present invention 1, 2 or 3 provides a desulfurization function-added FCC catalyst which can efficiently reduce the sulfur content of FCC gasoline while maintaining the yield of FCC gasoline in a process of producing FCC gasoline by cracking of heavy oil. The catalyst has vanadium supported on a carrier comprising (a) an alumina-coated zeolite and (b) a porous inorganic oxide except zeolite and/or a clay mineral, wherein the supported vanadium amount is from 500 to 20000 ppm by mass in terms of vanadium metal and the acid amount is from 20 to 450 μmol/g and the macropore surface area is from 30 to 150 m2/g; or the catalyst has vanadium supported on a carrier containing from 5 to 40% by mass of (a) an alumina-coated zeolite and from 30 to 70% by mass of (b) an alumina, wherein the vanadium concentration ratio before and after grinding the catalyst is at least 2; or the catalyst has at least vanadium and manganese and/or phosphorus supported on a porous inorganic oxide-containing carrier, wherein the supported vanadium amount is from 500 to 20000 ppm by mass in terms of vanadium metal, vanadium and manganese and/or phosphorus form a complex ion in the supporting solution for use in supporting vanadium and manganese and/or phosphorus, and the permeability of the complex ion through a reverse osmosis membrane is at most 25% relative to the permeability of vanadium through the reverse osmosis membrane.
Owner:IDEMITSU KOSAN CO LTD +1

Method for improving nitrogen yield of air separation device

The invention discloses a method for improving the nitrogen yield of an air separation device. The method includes the steps that according to required product nitrogen increasing amount, rectification packing or the plate number needed when a certain amount of waste nitrogen is rectified into pure nitrogen is calculated; the rectification packing or the plate number of an upper column on the air separation device is correspondingly increased according to a calculation result; by further rectifying and purifying the waste nitrogen of the upper column, the waste nitrogen is purified into pure nitrogen, and the product volume of the increased pure nitrogen is obtained. The method further includes the steps that mediums in a pure nitrogen channel and mediums in a waste nitrogen channel of the air separation device are exchanged, the lost cooling capacity, caused by reduction of the amount of the waste nitrogen, of a water cooling tower and a molecular sieve purifier is calculated, and cold loss is compensated for by additionally arranging a freezing machine and a liquid nitrogen evaporator. Besides, the yield of product nitrogen can change according to requirements in the range that the ratio of product oxygen to the nitrogen is 1:1 to 1:3. According to the method, the oxygen and nitrogen design proportion of an original air separation device is changed at low improvement cost, and the yield of pure nitrogen products is obtained to the largest extent.
Owner:MAGANG (GROUP) HOLDING CO LTD +1

Culture method with spatial mixing of aquatic gordon euryale and fishes

The invention discloses a culture method with spatial mixing of aquatic gordon euryale and fishes. The method includes the steps that a fishpond in an inverted isosceles trapezoid shape is arranged, a double-layer net is arranged around the fishpond, a water heating device and a water temperature control device are arranged, and water injection ports and water drainage ports are formed in the four corners of the fishpond; after the dried fishpond is desilted and exposed to the blazing sun for a long time, gordon euryale seeds are sprouted in air without soil, then sowing is conducted, and then water is injected along with early-stage growth of gordon euryale; after water culture, fry are put in, and the fry are fed with feed; disinfection devices are arranged on the water injection ports, compound bacteria and compound sodium nitrophenolate are splashed, and the fishpond is disinfected after harvesting and catching. Fishes cultured through the method grow fast, and meanwhile the natural flavor is maintained; by utilizing photosynthesis, planted gordon euryale absorbs nutrient substances such as nitrogen and phosphorus in water in the fishpond through the developed roots, and produced stems and fruits can be used and have economic benefits.
Owner:安徽舒城万佛湖渔业发展有限公司
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