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50results about How to "No coking phenomenon" patented technology

Method for preparing glucosamine hydrochloride

The invention relates to a method for preparing glucosamine hydrochloride, which is characterized by comprising the following steps: 1) treatment of chitin in a gas explosion expanding method: feeding chitin as a raw material into a gas explosion expanding tank, and injecting a gas explosion expanding medium into the gas explosion expanding tank, wherein the gas explosion expanding medium is one of the four substances, namely, steam, water, ammonium hydroxide and ethanol; and instantly releasing the pressure of the gas explosion expanding tank, and discharging the raw material chitin into an atmospheric vessel, thereby obtaining chitin concentrate; 2) hydrolysis with hydrochloric acid; 3) decolorization; 4) filtration; 5) concentration and crystallization; and 6) secondary crystallization. Compared with the prior art, the invention has the following advantages that: 1) the chitin pretreated in the gas explosion expanding method is used as the raw material, and due to the high chemical activity thereof, the invention can achieve a higher product yield; 2) almost no 'coking' can be caused in the process of hydrolysis; 3) the extraction of GAH can be completed at one step during the technological process of technology, thereby simplifying the preparation of GAH; and 4) the hydrochloric acid can be recycled, thereby realizing the clean production of GAH.
Owner:汪昔奇 +1

Method for refining oil through depolymerizing and liquifying waste plastics and device used in method

InactiveCN103555354ARealize depolymerization and liquefactionQuality assuranceHydrocarbon distillationPlastic recyclingFiberCeramic sintering
The invention relates to a method for refining oil through depolymerizing and liquifying waste plastics and a device used in the method. The method comprises the following steps of (1) crushing the waste plastics; (2) carrying out depolymerization reaction on the crushed waste plastics; (3) neutralizing a depolymerized acidic product by using a sodium hydroxide solution; (4) further washing to obtain a plastic depolymerization chlorobenzene dissolved liquid; (5) carrying out reduced pressure distillation on the plastic depolymerization chlorobenzene dissolved liquid; (6) carrying out cracking reaction and condensing to obtain a cracked fuel oil mixture; (7) rectifying and catalyzing the cracked fuel oil. The method has the beneficial effects that the depolymerization and liquidation of the plastics are realized by using a solvent and acid catalysis technology on the basis of a liquifying technology for plastics such as polyurethane, polyester and the like used in the chemical fiber industry; the cracking temperature is controlled within 360 DEG C in heating and cracking, so that the coking phenomenon is avoided; a porous nickel and chromium salt loaded catalyst is used, and the catalyst is prepared by using a ceramic sintering method, so that the quality of a refined oil product is ensured.
Owner:HUIZHOU SHENZHOU CHUANGYU LOW CARBON TECH DEV

Alcohol waste pulse quick precipitator

The invention discloses an alcohol waste pulse quick precipitator; a water supply chamber, a pulse region, a water distribution downcomer, a buffering plate and a sludge collecting region are sequentially arranged at the center part of a cylinder body from the top down, a water inlet pipe is connected to the side edge of the water supply chamber, a pulse deep is arranged inside the water supply chamber, a center siphon pipe extending to the pulse region is arranged below the pulse deep, the top of the pulse deep is in pipe connection with an extraction pipe and a siphonic damage pipe which are communicated with each other, and an exhaust pipe communicated with the pulse region is arranged inside the water supply room; the bottom of the pulse region is connected with the water distribution downcomer, a settling zone is arranged on the outer side of the water distribution downcomer, the buffering plate is arranged at the bottom of the water distribution downcomer, the sludge collecting region is arranged below the buffering plate, and a blow-off pipe is arranged at the bottom of the sludge collecting region; and a water outlet slot, a water outlet header tank and a water outlet which are communicated with one another are arranged at the top of the cylinder body. The alcohol waste pulse quick precipitator provided by the invention has the advantages that the settling effect is excellent, the problem of solid-liquid separation of high-concentration alcohol sediment is solved, and the phenomenon of coking is avoided.
Owner:NANNING HUIXIAN ENVIRONMENTAL PROTECTION ENG

Ball valve used for high-temperature easily-coking medium

The invention relates to a ball valve used for a high-temperature easily-coking medium. The ball valve used for the high-temperature easily-coking medium comprises a valve body, a valve rod and a ball core. A valve cavity is arranged inside the valve body, and an inflow channel and an outflow channel are arranged on the valve body. An inlet side valve seat assembly is arranged between the ball core and the inflow channel and comprises a valve seat body and an elastic piece. The valve body arranged between the inflow channel and the valve cavity is provided with an annular groove, the outer side end of the valve seat body extends to the inside of the annular groove, and a pressure-storage cavity is formed by enclosure of the outer side end of the valve seat body and the annular groove. An expansion clearance is reserved between the valve seat body and the valve body. One end of the elastic piece is abutted against the outer side end of the valve seat body, and the other end of the elastic piece is abutted against the bottom of the annular groove. The valve body is provided with a first inflation channel communicated with the pressure-storage cavity. With the technical scheme, the ball valve used for the high-temperature easily-coking medium can prevent the high-temperature easily-coking medium from influencing the inlet side valve seat assembly, and guarantee that a coking phenomenon of the valve seat body can not occur and working performance of the valve is stable.
Owner:CHAODA VALVE GRP

Preparation of stabilizing brain for curing apoplexy and migraine and producing method

A Chinese medicine for treating apoplexy and hemicrania is prepared from Chuan-xiong rhizome, Chinese angelica root, ginseng safflower and borneol. Its preparing process is also disclosed. Its advantages are low dosage and high curative effect.
Owner:安徽雷允上药业有限公司

Cylindrical granular fuel, preparation method thereof and equipment used for preparation method

The invention discloses cylindrical granular fuel, a preparation method thereof and equipment used for the preparation method. The cylindrical granular fuel is prepared by mixing crushed coal and straw cylindrical particles in the weight ratio of 1:0.15-0.7, and the cylindrical granular fuel is in the shape of a solid cylinder. The preparation method of the cylindrical granular fuel includes the following steps of firstly, preparing crushed coal for standby application; secondly, crushing straws; thirdly, disposing crushed straws into a straw wheel extruder to extrude straw cylindrical grains; and fourthly, uniformly mixing the crushed coal and the straw cylindrical grains and then disposing the coal and straw mixture into the wheel extruder and extruding the cylindrical granular fuel. The equipment used for the preparation method includes the straw wheel extruder and a coal and straw mixing wheel extruder. The cylindrical granular fuel is high in rigidity, convenient in storage and transport and easy to burn continuously, can be used as industrial fuel and overcomes the defects in the prior art thoroughly since the crushed coal and the straws are mixed to be extruded into cylindrical grains.
Owner:孔令增

Four-way ball valve used for high-temperature easily-coking medium

The invention relates to a ball valve used for a high-temperature easily-coking medium, in particular to a four-way ball valve used for the high-temperature easily-coking medium. The four-way ball valve used for the high-temperature easily-coking medium comprises a valve body, a valve rod and a ball core. A valve cavity is arranged inside the valve body, and the ball core is arranged inside the valve cavity. The valve body is provided with a main channel and three side channels, and an L-shaped connection channel is arranged inside the ball core. A valve seat assembly is respectively arranged between the three side channels and the valve cavity, and each valve seat assembly comprises a valve seat body and an elastic piece. The valve body arranged between the three side channels and the valve cavity is provided with an annular groove, the outer side end of the valve seat body extends to the inside of the annular groove, and a pressure-storage cavity is formed by enclosure of the outer side end of the valve seat body and the annular groove. An expansion clearance is reserved between the valve seat body and the valve body. The valve body is provided with a first inflation channel communicated with the pressure-storage cavity. With the technical scheme, the four-way ball valve used for the high-temperature easily-coking medium can prevent the high-temperature easily-coking medium from influencing the valve seat assembly, and guarantee that a coking phenomenon of the valve seat body can not occur and working performance of the valve is stable.
Owner:CHAODA VALVE GRP

In-furnace denitrification method and device

The invention discloses an in-furnace denitrification coal water slurry making and combusting system integrated method and equipment. The method comprises the following steps: on the basis of the traditional slurry making process, adding a denitrification reducing agent, and preparing coal water slurry fuel containing the denitrification reducing agent; spraying the coal water slurry fuel into a boiler for burning, controlling the combustion temperature of the hearth to be stabilized in an optima reduction reaction temperature range and controlling the oxygen content of the flue gas, so that high-efficiency low-cost in-furnace SNCR denitrification of the coal water slurry is realized. The whole device comprises a coal water slurry combustion boiler, wherein the coal water slurry combustion boiler adopts the design of a primary combustion chamber and a secondary combustion chamber and is respectively provided with an axial cyclone primary combustor and a secondary combustor; a fire barrier is arranged at the tail of the primary combustion chamber, an air door is arranged below the primary combustion chamber, the rear upper part of the primary combustion chamber is connected with a dust remover through a pipeline, and the combusted smoke dust is discharged through an induced draft fan connected with the dust remover; and the axial cyclone primary combustor and the secondary combustor are respectively connected with a coal water slurry tank through a screw pump via pipelines, and are also respectively connected with an air compressor at the coal water slurry inlet through pipelines.
Owner:HUNAN UNIV OF TECH +1

Coal saver as well as preparation method and application thereof

The invention discloses a coal saver as well as a preparation method and application thereof. The coal saver consists of the following raw materials in parts by weight: 9-18 parts of potassium ferrate, 20-30 parts of poly-aluminum ferric silicate, 2-8 parts of potassium nitrate, 1-5 parts of sodium acetate and 10-18 parts of borax. The preparation method for the coal saver comprises the following steps: mixing and crushing the borax and poly-aluminum ferric silicate, enabling the mixed and crushed borax and poly-aluminum ferric silicate to pass through a 200-mesh sieve, and adding triethanolamine to carry out stirring treatment, thereby obtaining a pre-treated mixture of the borax and poly-aluminum ferric silicate; and mixing and ball-milling potassium nitrate and sodium acetate, adding potassium ferrate to mix and ball-mill, stirring and mixing with the pre-treated mixture of the borax and poly-aluminum ferric silicate, irradiating the pre-treated mixture by use of an ultraviolet lamp, and cooling to the room temperature. The coal saver is non-toxic, is free from pungent smell, and is free of corrosivity and pollution; raw materials are cheap and easily available, the production cost is low, and the adding amount is less; and the coal saver has remarkable coal-saving, combustion-supporting and desulfuration effects, can remarkably reduce the carbon content of ash, can reduce emission of harmful gas, and can improve the thermal efficiency of coal.
Owner:张传业

Baking-resistant chocolate beans and production method thereof

The invention relates to a formula of baking-resistant chocolate beans, the baking-resistant chocolate beans adopting the formula and a production method of the baking-resistant chocolate beans. The formula disclosed by the present invention adopts a cocoa butter substitute (hydrogenated refined palm kernel oil with solid fat content of 88 to 96%wt at a temperature of 20 DEG C) meeting specific parameter conditions, and a specific amount of composition of anhydrous dextrose and inulin is added; the prepared chocolate beans can resist to baking and resist to roasting and have no coking phenomenon; the original chocolate flavor and taste can be guaranteed, and a case of deformation or collapse cannot be generated; and the chocolate beans can be hung on the surface of a baked product.
Owner:可可琳纳食品海门有限公司

Method for refining oil through depolymerizing and liquifying waste plastics and device used in method

InactiveCN103555354BRealize depolymerization and liquefactionQuality assuranceHydrocarbon distillationPlastic recyclingCeramic sinteringFiber
The invention relates to a method for refining oil through depolymerizing and liquifying waste plastics and a device used in the method. The method comprises the following steps of (1) crushing the waste plastics; (2) carrying out depolymerization reaction on the crushed waste plastics; (3) neutralizing a depolymerized acidic product by using a sodium hydroxide solution; (4) further washing to obtain a plastic depolymerization chlorobenzene dissolved liquid; (5) carrying out reduced pressure distillation on the plastic depolymerization chlorobenzene dissolved liquid; (6) carrying out cracking reaction and condensing to obtain a cracked fuel oil mixture; (7) rectifying and catalyzing the cracked fuel oil. The method has the beneficial effects that the depolymerization and liquidation of the plastics are realized by using a solvent and acid catalysis technology on the basis of a liquifying technology for plastics such as polyurethane, polyester and the like used in the chemical fiber industry; the cracking temperature is controlled within 360 DEG C in heating and cracking, so that the coking phenomenon is avoided; a porous nickel and chromium salt loaded catalyst is used, and the catalyst is prepared by using a ceramic sintering method, so that the quality of a refined oil product is ensured.
Owner:HUIZHOU SHENZHOU CHUANGYU LOW CARBON TECH DEV
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