233results about How to "Solve coking" patented technology

The invention discloses a coal-tar oil multistage hydrogenation craft, which belongs to coal chemical industry technology area. The method of the invention is that coal-tar oil fraction oils like impurities, sols, high content, asphaltenes, oxygen element, and so on, with high content or entire fraction are delivered into pre-hydrogenation reaction chamber by pump and are carried on pre-hydrogenation processing, then are successively followed by hydrogenation and demetallization, and depth hydrogenation reaction. After carried on separation of water and lightweight components, the generative fluid enters into a hydrocracking reactor, passes by a distiller to get gasoline fractions, diesel oil and hydrocracking tail oil out. Compared with the prior art, the invention can guarantee the long-period stability operation of the installation.

The invention discloses a method for producing high-grade lubricating oil base oil by full hydrogen regenerating of waste mineral oil. According to the method, a pre-hydrogenation reaction process isadded between a raw material pretreatment process and a hydrogenation fractionation process in the prior art; under hydrogen present conditions, heavy metal additives and gum asphalt as well as non-metallic impurities such as chlorine, phosphorus and silicon in a lubricating oil fraction are removed, and by the removal of the impurities, the problem of coking at the top of a hydrotreating reactorin a following high pressure hydrogenation fractionation process step can be solved, the problem of chlorine corrosion in heat exchangers and other equipment used for hydrogenation in the high pressure hydrogenation fractionation process step is also solved, and long-term operation of hydrogenation equipment in the high-pressure hydrogenation fractionation process can be ensured.

A reduction for treating waste plastic and rubber and its system are disclosed. The system is characterized by air feeding, heat cracking, agitating from anchor agitator, high-temperature slagging, recovering and utilizing fuel oil and gas. It is high efficient, energy saving and has no environmental pollution.

The invention discloses a method for preparing fuel oil with a high calorific value by upgrading biological oil (high-speed thermally cracked biomass oil), and particularly relates to a method comprising the steps of firstly, adding water to divide the biological oil into a water soluble phase and an oil soluble phase, and then, upgrading the water soluble phase by using a chemical extracting-to-coupling conversion technology and upgrading the oil-soluble phase through hydrodeoxygenation. The method can be used for subjecting compounds such as acid, aldehyde and the like in the water soluble phase and fatty alcohol with 1-4 carbon atoms to esterification and acetalation to obtain ester, acetal, hemiacetal and the like with good combustibility, and the fuel oil with the high calorific valueis prepared after the oil soluble phase is subjected to hydrodeoxygenation. The method has the advantages that few cokes are generated in an upgrading process, and after being upgraded, an oil product is low in water content and acid value, high in calorific value and the like.

The invention discloses a high-efficiency and environment-friendly coal-fired system for a vertical boiler with a bottom-built burner. The system comprises a coal powder tower, a burning boiler, an air preheater mechanism, a cyclone dust collector mechanism and a bag-type dust collector mechanism that are sequentially arranged and connected, wherein the burning boiler comprises a boiler body and the bottom-built burner; the bag-type dust collector mechanism comprises a sealed casing, a high-efficiency dust collector and an ash storage bin; a fume outlet of the sealed casing is connected with a tower fume outlet of a desulfurizing tower by an induced fan; and a discharge outlet of the ash storage bin is connected with an ash inlet of a coal powder ash tank by a conveying mechanism. As the coal-fired system is subjected to a series of technological innovations and transformations, the boiler thermal efficiency is very high; the dust collection sealability is good; the collection efficiency is excellent; the desulfurizing tower is very good in desulphurization efficiency, and excellent in scale prevention and scale removal performance; the high-efficiency desulfuration and labor saving are ensured; finally a fume emission index of the system is far lower than the national specified emission concentration; and the system achieves the benefits of high efficiency, energy saving, emission reduction and environmental protection, and is a domestic initiative.

The present invention is fluid catalytic cracker with fast separation of oil gas from catalyst. The fluid catalytic cracker has a riser with outlet connected to thick coiled pipe inside the tube settler, a stripping device below the tube settler, a catalyst regenerator connected through pipe tot lower end of the stripping device, and a top coiled pipe outside the tube settler. The fluid catalytic cracker can realize the efficient and fast gas-solid separation in the separation efficiency as high as 99.99 %, reduce average oil gas residence time to less than 2-3 sec and decrease scaling, and has compact structure and low cost.

The present invention relates to fast oil gas and catalyst separation in hydrocarbon material fluid catalytic cracking, and is especially one catalytic cracker without settler. The catalytic cracker without settler features the stripping unit with lower end connected via a vertical pipe to one regenerator, the first cyclone separator connected to the upper end of the stripping unit, the riser tube with outlet connected to the first cyclone separator via pipeline, and the second cyclone separator connected serially to the upper end of the first cyclone separator and with material feeding structure communicated to the stripping unit. The catalytic cracker can realize the efficient fast gas-solid separation in the separating efficiency up to 99.99 % and average oil gas residence time shortened to 2-3 sec, and has less scaling, compact structure and low cost.

The utility model relates to a double-temperature double-bed gasification and oxidation fluidized bed incinerator for treating high-concentration organic waste liquid, which relates to a fluidized-bed incinerator for treating high-concentration organic waste liquid. The other end of the low-temperature flue 21 of the present invention is connected to the high-temperature oxidation circulating fluidized bed 60, and the two ends of the high-temperature air pipeline 30 are respectively connected to the high-temperature air preheater (15) and the low-temperature gasification fluidized bed 50. The combination of low-temperature gasification of low-temperature gasification fluidized bed and high-temperature combustion of high-temperature oxidation circulating fluidized bed in the present invention solves the problem of agglomeration and coking of fluidized bed materials, and effectively removes HCl and SO2 produced after incineration of high-concentration organic waste liquid Harmful gases such as NOx and NOx fully suppress the generation of dioxin in the furnace, and can completely incinerate the toxic organic substances in the waste liquid, and the incineration removal rate reaches more than 99.99%. The device almost solves all the problems encountered in incinerating high-concentration organic waste liquid in a fluidized bed.

The invention discloses a hydrogenation modification method for coking gasoline and diesel distillates. A coking gasoline and diesel raw material is mixed with heated hydrogen and then introduced to pass through a low-temperature hydrorefining reactor and a hydrogenation modification reactor in sequence; a reaction effluent is separated and modified, and obtained liquid is distilled to obtain gas, gasoline, kerosene and diesel. In the method disclosed by the invention, a process flow of mixing hydrogen behind a furnace is adopted, the heating furnace is only used for heating the hydrogen, the mixed raw material does not pass through the heating furnace, and the temperature of the reactor is controlled based on the quantities of hot hydrogen and cold hydrogen. Compared with the prior art, the hydrogenation modification method disclosed by the invention has the advantage of saving equipment investment and being flexible in production scheme, can be used for flexible production by adjusting process conditions and production distribution according to the differences of raw material properties and product schemes; by implementation of hydrogen mixing behind the furnace, the coking raw material can be effectively prevented from being coked at a furnace tube; and by arrangement of a low-temperature protective agent reactor, olefin saturation is performed at lower temperature so as to reduce coking, meanwhile, coke powder is distributed at a protective agent bed as uniform as possible, so that the long-term operation of a hydrogenation device is ensured.

The invention relates to a method for adopting waste derivative oversize material as substitute for cement kiln fuel, which is characterized in that the domestic waste in refuse reclamation station is separated and sorted, broken in packages, crushed and completely stirred and mixed, one part of the waste enters a precombustion furnace in the kiln tail of a cement kiln for combustion, while the other part of the waste enters the cement kiln from the kiln hood for combustion, thus the substitute fuel for cement production is produced. The invention has the advantages that the waste derivative oversize material having calorific value is adopted to substitute for industrial fuel in the cement kiln, thus resources of waste derivative oversize material are fully utilized, and coal energy resources are saved; simultaneously the cement kiln has the characteristics of high temperature, large carrying capacity, no residue after waste treatment and no secondary pollution, therefore the invention has the great advantages of energy saving and environmental protection.

The invention provides a smoke circulating combusting system for a waste palm boiler. The system is that a fire grate comprises a drying section reciprocating fire grate and a combustion section reciprocating fire grate which are connected through continuously-inclined staggering disconnecting layers; inclination angles of the drying section reciprocating fire grate and the combustion section reciprocating fire grate are 20 to 30 degrees; a plurality of primary air branch tubes and a plurality of smoke circulating branch tubes are arranged in the drying section reciprocating fire grate and the combustion section reciprocating fire grate, wherein the primary air branch tubes and the smoke circulating branch tubes are respectively communicated with an air preheater and a tail smoke channel through primary air head tubes and smoke circulating head tubes; the tail smoke channel, the smoke circulating head tubes, the smoke circulating branch tubes, the smoke circulating branch tubes, a hearth and a smoke outlet are sequentially communicated by a circulating manner; the air preheater, the primary air head tubes, the primary air branch tubes and the hearth are sequentially communicated by circulating. The system can solve the problems of unstable combustion of the hearth and coking, and achieves efficient, energy-saving and safe operation of the waste palm steam boiler.

The invention discloses a full fraction crude benzene hydrogenation method and a catalyst, belonging to the technical field of all fraction crude benzene processing. The method comprises steps of firstly allowing crude benzene fraction over 70DEG C and hydrogen to pass through a corpuscule generator and a static mixer sequentially, so as to mix the two raw materials into uniform corpuscule raw material with diameter of 0.1-20mu m; fully saturating the corpuscule raw material through hydrogenation through the catalytic action of the low temperature hydrogenation catalyst under the conditions of certain pressure, air speed and temperature, so as to convert the corpuscule raw material into stable saturated compound; mixing the oil generated through low temperature hydrogenation with fresh hydrogen, circulating hydrogen and less than 70DEG C crude benzene fraction from a pre-fraction tower, then hydrogenating again, gas stripping and fraction distilling the oil generated by hydrogenating full fraction crude benzene so as to obtain light arene fraction and heavy arene product, then predistilling, extracting and rectifying so as to obtain pure benzene, methylbenzene, xylene and non-arene products. According to the method, the problem of coking of full fraction crude benzene raw material in high temperature hydrogenation is solved, and the crude benzene hydrogenation device can run for long period.

The invention relates to a regulating angle valve, in particular to a black water coking-preventing impact-resistant shockproof regulating angle valve special for the coal chemical industry, and belongs to the field of fluid control valves. The black water coking-preventing impact-resistant shockproof regulating angle valve comprises a diffusion tube and a valve body, wherein the lower end of the valve body is connected with the diffusion tube through a bolt. An inlet flowing channel is arranged in the valve body, an outlet flowing channel is arranged in the diffusion tube and is communicated with the inlet flowing channel, and the inlet flowing channel is perpendicular to the outlet flowing channel. A valve carrier base is arranged in the outlet flowing channel and is clamped through the diffusion tube and the valve body, and a valve carrier is arranged in the valve carrier base. The black water coking-preventing impact-resistant shockproof regulating angle valve is simple in structure and novel in design, can effectively solve the technical problems that a traditional black water regulating angle valve is easy to coke, poor in impact resistant performance, undesirable in shockproof effect and the like in a use process, is widely applied in sites of customers, and effectively lowers production operation cost of the customers.

The invention relates to a process and device for extracting citral from Litsea cubeba oil. The process comprises the following steps: feeding Litsea cubeba oil into a first-grade molecular distiller for distillation so as to separate and remove components the boiling points of which are lower than the boiling point of citral; and feeding distilled residue into a second-grade distiller for separating and removing components the boiling points of which are higher than the boiling point of citral, and collecting distillate, namely the citral product. The device consists of a raw material tank, a rotameter, a metering pump, a molecular distiller, a storage tank, a vacuum system, a heating system and a cooling system. According to the invention, the citral product produced by the method has high purity and good quality, production process is easy to control, and cost is relatively low.

The invention relates to a biomass briquette gasification direct combustion combustor, which comprises a furnace body and a bracket, wherein the furnace body is supported on the bracket; the bottom ofa furnace body is fixedly connected with a bottom support and the middle part of the bottom support is provided with a through hole; a circular fire grate is arranged on the upper part of the bottomsupport; the fire grate is plate-shaped and evenly provided with fire grate air holes and the lower part of the fire grate is connected with a fire grate rotating shaft; and a motor drives the fire grate rotating shaft, the upper part of the furnace body is connected with a cylindrical spray nozzle and the furnace body on the other side opposite to the spray nozzle is provided with a material loading opening. The special combustion mode ensures that biomass fuel is fully gasified and combusted, realizes high-efficiency energy-saving conversion of the biomass and has good energy-saving effect.The biomass briquette gasification direct combustion combustor has compact structure, small volume, great reduction of production cost and obvious environment-friendly effect.

The invention provides a biomass-forming fuel solid-phase low-temperature gas-phase high-temperature combustion device and belongs to the technical field of biomass combustion. The biomass-forming fuel solid-phase low-temperature gas-phase high-temperature combustion device is characterized in that a feeding opening of a smoldering region (3) communicates with a discharging opening of a hearth (1), a discharging opening of the smoldering region (3) communicates with a cooling region (4), a furnace grate (13) is arranged on the lower portion of the hearth (1), a crushing mechanism (2) for crushing materials is arranged on the furnace grate (13), the furnace grate (13) is connected with a rotating mechanism for disturbing biomass fuel so that carbon powder can fall into the smoldering region (3) to be smoldered, meanwhile the block-shaped biomass fuel is made to move to the middle of the furnace grate (13), and the crushing mechanism (2) is used for crushing the block-shaped biomass fuel into the carbon powder and then enabling the carbon powder to fall into the smoldering region (3) to be smoldered. By the adoption of the biomass forming fuel solid-phase low-temperature gas-phase high-temperature combustion device, the problems of coking, slag bonding, the high gas-solid pollutant emission and invalid ash fertilizer existing in combustion equipment for agricultural waste such as straw are solved fundamentally.

The invention discloses a boiling-bed residual-oil hydrocracking and catalytic-cracking combined process method which comprises the following steps that: a residual-oil raw material enters a boiling-bed residual-oil hydrogenation device for hydrocracking reaction after exchanging heat with a high-temperature regeneration catalyst from a catalytic cracking regenerator, total or partial boiling-bed hydrocracked tail oil enters a catalytic cracking device for cracking reaction to obtain a gasoline fraction and a diesel oil fraction, and after a catalytic cracking catalyst is regenerated, one part of the regenerated catalyst is circulated back to the catalytic cracking device, and the other part of the regenerated catalyst is used for preheating the incoming material of the boiling-bed residual oil to reaction temperature. The process characteristics of the hydrocracking and the catalytic cracking of a boiling bed are organically combined together through the combined process, respective advantages are fully exerted, the incoming material of a boiling-bed device is preheated by utilizing the high-temperature regenerated catalytic cracking catalyst, energy sources are saved, meanwhile, the heat load of a heating furnace is reduced.

This invention relates to one multi-surface stand burst furnace and method to realize coke cleaning burst, wherein, the burst furnace comprises the following parts: column furnace with channel exit located on top cover and rotation row located on the bottom of the furnace; at least one gas chamber and one pair of burst stand symmetric cross isolation element and space burst mouth between the isolation parts down end and furnace row with gas room and burst room connected; each gas chamber top furnace wall is located with each coke adding mouth with smoke exit mouth and reside exit mouth downside as secondary mouth. The burst method is to cooperate with multiple gas rooms through rotation furnace row.

The invention discloses a pot-type carbon calciner and belongs to calciners for carbon production. One combustion chamber is formed by each four calcination pots and furnace walls with heating fire channels, the furnace walls with the heating fire channels are located on two sides of a pot body, expansion joints and smoke converging flues are arranged among the combustion chambers, each of the furnace walls with the heating fire channels has 8 to 10 layers of fire channels, the fire channels are communicated with a preheated air channel, the calcination pot body is connected with a material discharge pot, and an interlayer cooling water jacket is disposed on the periphery of the material discharge pot. The pot-type carbon calciner is characterized in that the entire calciner is formed by 18 combustion chambers which are linearly arranged and 72 calcination pots, a calciner protection large cutter frame is arranged outside the front wall of the calciner, a calciner protection frame is arranged outside the rear wall of the calciner, the bottoms of the combustion chambers are supported by supporting columns at the bottom of the calciner, a feed opening is disposed at the top of the calcination pot body, the material discharge pot is connected with the bottom of the calcination pot body, the interlayer cooling water jacket is disposed on the periphery of the material discharge pot, a material discharge device is installed at the lower end of the material discharge pot, and a small storage bin is mounted between the material discharge device and a discharge valve, so that volatile matter two-way utilization is achieved, the full-automatic closed type continuous discharging is achieved, and the pot-type carbon calciner has good economic and environmental benefits.

The invention belongs to the field of high-value utilization of biomass resources and especially relates to an attapulgite-biomass activated carbon soil restoration material and a preparation method thereof. According to the preparation method, attapulgite and rapeseed oil residue which are used as raw materials firstly undergo one-step high-temperature pyrolysis to prepare an attapulgite/carbon composite material; and then the attapulgite/carbon composite material undergoes acid activation treatment to prepare an attapulgite/activated carbon composite material.

The invention discloses a composite fuel oil for automobiles, which belongs to the technical field of automobile fuel oil. The fuel oil product of the automobiles is compounded by a fuel oil additive and gasoline, wherein the fuel oil additive is prepared by mixing a mixture of extractives of biomass such as corn oils, castor oils and palm oils, fatty polyol, antioxidants, antiknock agents, passivation agents and modified C5 according to certain proportion. The composite fuel oil product can partly substitute gasoline as well as improve gasoline performance so as to combust gasoline more fully and reduce coking and carbon deposition in an engine and emission of harmful substances in automobile tail gas. Through inspection of Chinese Ethanol Gasoline Quality Supervision and Testing Center, the product reaches national standard.