396results about "Steam distillation" patented technology

The invention provides a real-time optimization method for energy consumption in a chemical production process, which comprises the following steps: acquiring real-time purity data of a tower top product, comparing the real-time purity data with a target purity range, judging whether deviation occurs, if deviation occurs, acquiring a heating steam rate, a reflux amount, a feed preheating temperature and a tower plate blockage parameter, and evaluating an operation state; if blockage is detected and the gas-liquid contact efficiency is reduced, it is judged that the separation effect is reduced due to blockage, the blockage position and degree are obtained in real time, and the reflux liquid quantity parameter and the tower top condensation rate are dynamically adjusted to balance the tower top product purity and steam consumption; the efficiency difference between the gas-liquid contact efficiency and the target range is monitored in real time, the matching relation between the tower top product purity and the overall energy consumption is evaluated according to the process parameters and the equipment state, and the operation parameters and the load distribution are adjusted in real time to optimize the energy consumption distribution.

The invention discloses an energy-saving double-jet-pump steam stripping system which comprises a device body, an annular rotating seat is arranged at the top of the device body, a plurality of vertical rods are connected to the bottom of the annular rotating seat, a plurality of first flow guide discs are fixedly connected among the vertical rods, annular material accumulation discs are arranged at the bottoms of the first flow guide discs, and a plugging disc is arranged in the annular rotating seat. A guide air pipe is fixedly arranged above the plugging disc, an air supply pipe is movably arranged on the plugging disc in a penetrating mode, the top of the air supply pipe is movably arranged in the guide air pipe in a penetrating mode, a lifting device is arranged on the plugging disc, a plurality of second flow guide discs are fixedly connected to the air supply pipe, and every two first flow guide discs and every two second flow guide discs form a group; the upper openings of the second flow guide discs in the same group are located above the lower openings of the first flow guide discs, and the second flow guide discs are provided with material splashing blocks extending into the annular material accumulation discs. The steam stripping system can fully improve the steam stripping efficiency on the premise of avoiding flooding.

The invention relates to the field of steam, in particular to a steam generating device for plant extraction, which comprises a base and an extractor, the extractor is fixedly mounted at the top end of the base, a filter box is fixedly mounted at the top end of the base, one end of a second connecting pipe is fixedly connected with the input end of the extractor, and a first through hole is formed in the bottom end of the filter box. A first exchanger is slidably connected into the first through hole in a sealed mode, a filtering assembly is installed at the bottom end of the filtering box, an auxiliary assembly is installed at the bottom end of the filtering box, and adjusting assemblies are symmetrically installed on the side walls of the filtering box. According to the plant extraction device, the filtering assembly is arranged, in order to not affect normal operation of plant extraction, the second exchanger is used for conducting auxiliary filtering on steam, when the first exchanger is saturated, auxiliary filtering can be conducted through the second exchanger, and under the condition that plant extraction is not affected, the first exchanger can be cleaned and put into use again; the practicability of the device is improved.

The invention provides a methanol synthesis reactor, system and method, and belongs to the technical field of chemical equipment. The methanol synthesis reactor comprises a shell, the upper part of the shell is provided with a raw material inlet for receiving raw material gas, and the lower part of the shell is provided with a product outlet for discharging mixed products including methanol; each section of reaction unit comprises an upper partition plate and a lower partition plate which are arranged in the shell at an interval; the plurality of reaction tube nests are connected between the upper partition plate and the lower partition plate, and a heat exchange shell pass is formed outside the reaction tube nests and in a cavity among the upper partition plate, the lower partition plate and the shell; the heat exchange medium inlet and the heat exchange medium outlet are formed in the shell, and the heat exchange shell side communicates with at least one temperature control device through the heat exchange medium inlet and the heat exchange medium outlet; and the heat exchange assembly is mounted around the reaction tube nest, and a flow guide channel is arranged between the heat exchange assembly and the reaction tube nest.

The present invention relates to the technical field of hydrogen fluoride preparation, and particularly to a method for separating a mixed solution containing hydrogen fluoride and sulfuric acid. The separation method includes: A) Concentrated fluorosilicic acid and concentrated sulfuric acid react in a reaction device to generate silicon tetrafluoride gas and a sulfuric acid solution containing hydrogen fluoride; B) The first part of the sulfuric acid solution containing hydrogen fluoride is subjected to two-stage separation to obtain hydrogen fluoride gas; the second part of the sulfuric acid solution containing hydrogen fluoride is heated and recycled to the reaction device. The present invention adopts two-stage separation; another path of the sulfuric acid solution containing hydrogen fluoride led out after the main reaction enters the reaction device again after being heated, with relatively low energy consumption. Therefore, the separation method provided by the present invention separates hydrogen fluoride from the sulfuric acid solution with relatively low energy consumption and can reduce fluorine loss.

Process for producing a salt comprising NaCl and / or KCl from the aqueous effluents from one or more organic peroxide production processes, said process comprising the following steps (a) ensuring the pH of the aqueous effluents to be in the range from about 1-5, (b) separating the effluents in a liquid organic layer and an aqueous layer, (c) removing the organic layer, (d) raising the pH of the aqueous layer to a value in the range from about 6-14, and (e) crystallizing the salt from the aqueous layer having a pH in the range from about 6-14.

The invention discloses an aldehyde removal tower for removing aldehyde impurities in acetic acid, and relates to the field of aldehyde removal towers, the aldehyde removal tower comprises an aldehyde removal tower body, an alcoholization assembly is fixedly mounted on the upper side in the aldehyde removal tower body, a flow dividing frame A is mounted at the bottom of the alcoholization assembly, a secondary aldehyde removal filter plate is arranged below the flow dividing frame A, and a one-way hopper is mounted at the bottom of the secondary aldehyde removal filter plate; a diversion frame B is installed below the one-way hopper, an evaporation channel is arranged at the bottom of the diversion frame B, an acetic acid collecting pool is fixedly arranged at the bottom of the evaporation channel, and a steam inlet is formed in the side wall of the top of the acetic acid collecting pool. According to the dealdehyding tower for removing the aldehyde impurities in the acetic acid, separation is carried out by utilizing the difference of boiling points of alcohols and the acetic acid, so that the alcohols and other impurities can be fully vaporized, and the acetic acid is less vaporized, so that effective separation of the alcohols and the acetic acid is realized; the acetic acid solution collected in the acetic acid collecting tank is high in purity, a pure acetic acid product can be obtained, and the requirement of industrial production for the purity of acetic acid is met.

Embodiments of the present disclosure can include a system for harvesting salt and generating distilled water from at least one of a produced water and salt water, comprising. A direct steam generator (DSG) can be configured to generate saturated steam and combustion exhaust constituents from the at least one of the produced water and salt water. A separation system can be configured to separate the salt from at least one of the saturated steam and combustion exhaust constituents in brine form or solid form. An expansion turbine can be configured to recover energy from the steam and combustion exhaust constituents.

The application relates to a method and a preparation system for preparing hydrogen fluoride from fluosilicic acid, which comprises a reaction kettle, a hydrogen fluoride absorption tower, a condenser and a silicon tetrafluoride absorption tower which are sequentially communicated; a gas outlet of the reaction kettle is communicated with a gas inlet of the hydrogen fluoride absorption tower, and a gas outlet of the hydrogen fluoride absorption tower is communicated with a gas inlet of the condenser; the generated fluorosulfonic acid in the reaction kettle is introduced into a stripping tower, fluorosulfonic acid generated in a side reaction is re-generated into hydrogen fluoride, the generation of intermediate products is reduced, the process route of the application is free of waste residues and waste gas, and fluosilicic acid is effectively utilized.

A process and apparatus for physically refining a vegetable oil comprising a step of deodourising a crude vegetable oil by steam refining under refining conditions effective to produce a refined vegetable oil having a trans fat content of less than 0.99 wt%. The apparatus may comprise a plurality of volatilisation stages for removal of free fatty acids from a vegetable oil.

A co-processing that includes converting oil drilling waste into a material with technical characteristics that can be used as fuel or alternative raw material for a specific petrochemical process. In the co-process, the components that make up the waste such as solid, oil, and water are recovered. The co-process is a self-sustaining process, reducing gas emissions into the atmosphere, accompanied by savings in the operating cost of the process.

The invention relates to an absorption stabilization system and a separation method of a wax oil hydrocracking unit, which are characterized in that an original naphtha separation tower is changed into a heavy naphtha tower, a feed stream is adjusted into a mixture of top oil of a steam stripping tower, top oil of a pre-fractionating tower and top oil of a main fractionating tower, and heavy naphtha is produced at the bottom of the tower; tower top distillate and tower bottom oil of the deethanizer are mixed and then enter a debutanizer, liquefied gas is obtained at the tower top after separation, light naphtha is obtained at the tower bottom, and part of the light naphtha serves as an absorbent to be recycled. By changing the top oil feeding position of the main fractionating tower, reducing the processing amount and the energy consumption of the debutanizer, and adopting pure light naphtha as an absorbent in the absorption tower, the adsorption effect is better, and the composition of the bottom of the debutanizer is changed, so that a reboiling heat source is changed from middle-section reflux of the main fractionating tower to product diesel oil, and the heat consumption level is reduced. The method does not change the reaction and main fractionating tower system process, has strong applicability in the aspects of new device construction and old device transformation, effectively solves the problem of high energy consumption in the traditional process, and improves the overall benefits of the device.

A process for the preparation of ethylene oxide in which the efficiency of separating ethylene from carbon dioxide is improved.

The invention discloses a distillation and extraction device for producing geranium oil in the technical field of distillation, which comprises a distillation unit, a distillation kettle, a guide part fixedly arranged at the lower part in the distillation kettle, a fixed part rotationally connected above the guide part, and a containing part rotationally connected above the fixed part. The three sets of bearing components used for containing the bay leaf raw materials are obliquely arranged in the vertical direction, and the three sets of bearing components are combined in the horizontal direction in a surrounding mode, so that the bearing components can fully guarantee that the bearing components make contact with bay leaf raw material steam, meanwhile, blocking interference cannot be formed among the bearing components, and the bearing components are not prone to falling off. Furthermore, the bay leaf raw materials at different positions in the distillation kettle can be in contact with steam in time for distillation, and an essential oil and steam mixture after distillation is not hindered to be collected upwards in time, so that the purposes of fully utilizing the internal space of the distillation kettle and remarkably improving the distillation efficiency are achieved.

The present invention describes a co-processing that consists of converting oil drilling waste into a material with technical characteristics that can be used as fuel or alternative raw material for a specific petrochemical process, in said co-process, the components that make up the waste such as solid, oil and water are recovered; it is a self-sustaining process, reducing gas emissions into the atmosphere, accompanied by savings in the operating cost of the process.

The utility model discloses a cyclopropylamine stripping tower which comprises a stripping tower main body, a plurality of packing layers arranged at intervals are arranged in the stripping tower main body, a liquid inlet pipe is arranged above the packing layer positioned at the topmost part, the liquid inlet pipe is divided into an inlet and an outlet, the inlet is positioned outside the stripping tower, the outlet is positioned inside the stripping tower, and the liquid inlet pipe is connected with the stripping tower main body. A gas inlet pipe is arranged below the filler layer located at the bottommost part, a liquid outlet pipe is arranged at the bottom of the stripping tower, a gas outlet pipe is arranged at the top of the stripping tower, and an exhaust plate is arranged between every two filler layers; each exhaust plate comprises a rotating disc rotationally mounted in the stripping tower, a fixed disc fixedly arranged in the stripping tower and a driving part, the rotating disc is rotationally arranged on the fixed disc, and corresponding through holes are formed in the rotating disc and the fixed disc. And the size of the vent hole is changed in a rotating manner, so that the use flexibility is improved.

An apparatus for steam reforming includes a reactor, a condensate separator, a condensate stripper, and a steam boiler. The reactor produces hydrogen and is connected to the condensate separator such that a gas mixture is conducted from the reactor into the condensate separator. The condensate separator and the condensate stripper are connected so that condensate separated out in the condensate separator is conducted into the condensate stripper. The condensate separator and the steam boiler are connected such that cleaned condensate can be conducted into the steam boiler. The steam boiler is connected to the reactor and to the condensate stripper in a steam-conducting manner. The boiler water feed line of the steam boiler is connectable to the condensate stripper in a liquid-conducting manner. A supply from the boiler water feed line is at a same location of the condensate stripper as a supply of the condensate from the condensate separator.

Provided are compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.

The invention discloses a biomass sugar solution steam stripping-hydrogenation device and a biomass sugar hydrogenation process, the biomass sugar solution steam stripping-hydrogenation device comprises: a steam stripping reaction kettle, the top of the steam stripping reaction kettle is provided with a feed pipe, and the bottom of the steam stripping reaction kettle is provided with a hydrogen inlet pipe; the fixed bed hydrogenation reactor is communicated with the steam stripping reaction kettle; the cooler is communicated with the fixed bed hydrogenation reactor; and the gas-liquid separator is communicated with the cooler. According to the present invention, the steam stripping-hydrogenation process coupling is adopted to achieve the in-situ conversion of the heat sensitive saccharide derivative, the problems of difficult separation, easy heating coking and the like of the saccharide derivative are solved, and the hydrogen circulation, the heat coupling and the integration of the process process are provided to provide the continuous, high-selectivity and low-energy-efficiency new process for preparing the biomass energy and the chemical product.

The present invention provides a water ring pump system for a mixed nitro toluene stripping process, which includes a water ring pump, a gas-liquid separator, a multi-stage sedimentation separation system, and a heat exchanger that are connected in sequence for circulation; the vacuum extraction pipe of the water ring pump is connected to a stripping column for vacuum extraction of the stripping column; an insulating jacket is provided outside the multi-stage sedimentation separation system; a water supply pipe is connected to the inlet of the heat exchanger; the drainage port of the multi-stage sedimentation separation system is connected to the inlet of the heat exchanger, and the discharge port of the multi-stage sedimentation separation system is connected to a recovery tank through a recovery pipe. By providing an insulating jacket outside the multi-stage sedimentation separation system, when sedimentation separation of the mixed nitro toluene is carried out, para-nitrotoluene entrained in the solution can be prevented from solidifying into crystal powder due to temperature reduction, thus causing pipeline blockage, improving the stability and reliability of the water ring pump operation. At the same time, para-nitrotoluene entrained in the stripping column is recovered, avoiding waste of resources.

The invention relates to the field of olefin superimposition, and discloses a method and a system for preparing isomeric C8 olefin through selective superimposition of C4 olefin. The method comprises the following steps: (1) in the presence of a reaction regulator, carrying out a superposition reaction on a C4 raw material; (2) in the presence of a separation regulator, performing first separation on a material obtained by the superposition reaction in the step (1) in a residual raw material separation tower to obtain residual raw materials, a reaction regulator, the separation regulator, isomeric C8 olefin and a superposition product at the tower bottom; (3) sequentially introducing the bottom material of the residual raw material separation tower into a regulator recovery tower and an isomerized C8 separation tower, and carrying out second separation and third separation to obtain an isomerized C8 olefin gas phase; and (4) carrying out first heat exchange on the isomeric C8 olefin gas phase obtained in the step (3) and the residual raw material separation tower side draw-out material. By adopting the method disclosed by the invention, the purpose of further reducing the separation energy consumption can be achieved.

The invention discloses an energy-saving steam stripping device, which belongs to the technical field of chemical production and comprises a condensate steam stripping tower, a pipeline is arranged on the condensate steam stripping tower, a flow controller d and a regulating valve d are arranged on the pipeline, the condensate steam stripping tower is connected with a heat exchanger a through a pipeline, the heat exchanger a is connected with a heat exchanger b through a pipeline, and a temperature controller b is arranged on the pipeline. The heat exchanger b is connected with a condensate stripping tower through a pipeline, a flow controller a, a regulating valve a, a mixer and a temperature controller a are arranged on the pipeline, a pipeline is arranged on the mixer, a regulating valve b and a flow controller b are arranged on the pipeline, and an ethylbenzene flushing device is arranged on the pipeline at the bottom of the heat exchanger a; according to the device and the method, a high-temperature discharging medium in the condensate stripping tower is effectively utilized, the production cost is reduced, and raw material stripping in the condensate stripping tower is not influenced by washing ethylbenzene when the heat exchanger a and the condensate stripping tower are washed.

The invention relates to the technical field of low-temperature methanol washing, in particular to a low-temperature low-sulfur low-carbon methanol washing method matched with a pulverized coal gasification device and a device thereof.The method has the advantages that low-carbon methanol is high in CO2 gas absorption energy, low-H2S methanol is high in synthesis gas absorption energy and high in use efficiency, a medium-pressure flash evaporation process is advanced and reasonable in arrangement, and low-sulfur low-carbon methanol is obtained. And the low-temperature methanol washing device is low in comprehensive energy consumption.

An apparatus, in particular for separating and purifying styrene from a crude mixture comprising styrene, comprises a steam generating unit and a divided wall distillation column wherein the divided wall distillation column comprises a divided wall comprising a first portion, the first portion extends at least substantially vertically downward from a point located below the top of the distillation column to a point located above the bottom of the divided wall distillation column so as to subdivide the divided wall distillation column into: a top section located above the dividing wall; a bottom section below the partition wall; and a middle section comprising a first middle sub-section on one side of the first portion of the partition wall and a second middle sub-section on an opposite side of the first portion of the partition wall, where the partition wall further comprises a second portion connected to an upper portion of the first portion of the partition wall, at least one part of the bottom section, which extends at least over 10% of the height of the divided wall distillation column, has a smaller cross-sectional area than the middle section of the divided wall distillation column, and wherein at least one part of the bottom section, which extends at least over 10% of the height of the divided wall distillation column, has a smaller cross-sectional area than the middle section of the divided wall distillation column, the dividing wall type distillation column further comprises a feed inlet pipeline, an extraction solvent inlet pipeline, a steam inlet pipeline connected with the steam generating unit, an overhead outlet pipeline, a bottom outlet pipeline and a side outlet pipeline connected with the second middle sub-section of the dividing wall type distillation column, the plant further comprises a side condenser and a liquid-liquid separator, where the side outlet line is connected to the side condenser and downstream thereof to the liquid-liquid separator, where the liquid-liquid separator is connected to the water line leading into the steam generating unit.

The utility model discloses a methanol-to-gasoline process system, which relates to the technical field of gasoline production, and comprises a fluidized bed reactor, a regenerator, a separator and a stripping tower, the top of the fluidized bed reactor is connected with the separator through a gas output pipeline, the bottom of the separator is provided with a liquid removal bag, and the liquid removal bag is connected with the lower end of the stripping tower; a first conveying pipeline and a second conveying pipeline are further connected between the bottom of the fluidized bed reactor and the bottom of the regenerator, a gas outlet of the separator and a gas outlet in the top of the stripping tower are jointly connected to the first conveying pipeline in parallel, and a gasoline separation tower is further connected to the bottom of the separator; the lower end of the fluidized bed reactor is connected with a methanol input pipeline. The device has the advantages of ingenious structure, few side reactions, good reaction efficiency, high yield and the like, and the catalyst in the system has the advantages of long service life, continuous production, low energy consumption, low production cost, high operation flexibility and easiness in large-scale production.

Processes, systems and equipment are for treating a digestate resulting from the thin stillage of a bioethanol plant. They can include a decarbonizer system to reduce the carbon and water footprint in an ethanol plant and associated biogas plant by treating a digestate stream resulting from a thin stillage digester. The treatment includes heating the digestate stream to decompose ammonia bicarbonate contained in the digestate stream into ammonium and bicarbonate; and contacting the heated digestate stream with air so that a first portion of the ammonia is desorbed from the heated stream to mix with the air.

This invention relates to a BYD (1,4-butynediol) distillation process and system, solving the problems of high energy consumption and high steam and circulating water consumption in existing BYD distillation processes. The distillation process includes a mixed solution containing 1,4-butynediol, methanol, water, and formaldehyde from an acetylation reactor, which is preheated in a feed preheater and then fed into a stripping tower for stripping. The liquid at the bottom of the stripping tower is drawn off through the liquid phase outlet and sent to the feed preheater for indirect heat exchange with the mixed solution. It is then further cooled by the stripping tower bottom outlet cooler to obtain the BYD product for external delivery. The vapor phase from the top of the stripping tower is drawn off through the vapor phase outlet, first sent to a compressor for pressurization and heating, then sent to the stripping tower reboiler for heat recovery, and then enters the stripping tower reflux tank, before being pumped to the alcohol distillation tower. This invention features a simple process, energy saving and consumption reduction, low operating costs, effective recovery of top heat energy, significant savings in cooling water, and high product concentration.

The utility model relates to the field of paste resin production, in particular to a VCM (Vinyl Chloride Monomer) recycling system for producing paste resin, which comprises a VCM gas-liquid separation tank and a VCM gas-liquid separation tower which are connected in series into a whole through a VCM circulating pipeline and a discharging pipeline, the VCM separated from the glue solution is discharged into a VCM exhaust pipeline through a gas discharge hole; the VCM circulating pipeline is connected between the circulating latex discharge hole of the VCM gas-liquid separation tank and the feed end of the VCM gas-liquid separation tower; the latex containing the residual VCM gas phase enters a VCM gas-liquid separation tower through a circulating latex discharge port and a VCM circulating pipeline for further VCM recovery; the discharging pipeline is connected between the discharging end of the VCM gas-liquid separation tower and the circulating latex feeding hole of the VCM gas-liquid separation tank, and a latex solution at the bottom of the VCM gas-liquid separation tower enters the VCM gas-liquid separation tank again through the discharging pipeline, so that VCM in latex can be removed to the maximum extent, and meanwhile, the problems that the inner wall of the stripping tower is caked and a steam jet is easy to block are solved.

The utility model belongs to the technical field of production of chemical raw materials, and particularly relates to a device for recovering chloroacetic acid from heavy components of chloroacetic acid, which comprises a stripping tower, the bottom of the stripping tower is connected with a flash tank through a discharge pipe, the top of the flash tank is provided with a venturi ejector, and the venturi ejector is provided with a gas ejector pipe and a steam inlet pipe. The top of the stripping tower is sequentially connected with a cooler and a storage tank through an exhaust pipe, a bottom outlet of the storage tank is connected with the upper part of the stripping tower through a return pipe, the return pipe extends to the inner cavity of the stripping tower and is connected with a liquid distributor, and a feeding pipe is arranged on the side wall of the stripping tower. The device disclosed by the utility model can be used for recovering chloroacetic acid in the heavy components of chloroacetic acid, avoiding resource waste caused by treatment of the heavy components of chloroacetic acid, saving the use cost of materials and simultaneously reducing environmental pollution.