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42results about How to "Reduce irreversibility" patented technology
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Method and system for generating power from low- and mid- temperature heat sources
ActiveUS20130213040A1Minimal human interventionValid conversionReciprocating combination enginesCombination enginesWorking fluidZeotropic mixture
A method and system for generating power from low- and mid-temperature heat sources using a zeotropic mixture as a working fluid. The zeotropic mixture working fluid is compressed to pressures above critical and heated to a supercritical state. The zeotropic mixture working fluid is then expanded to extract power. The zeotropic mixture working fluid is then condensed, subcooled, and collected for recirculation and recompression.
Owner:UNIV OF SOUTH FLORIDA
Method and system for generating power from low- and mid- temperature heat sources using supercritical rankine cycles with zeotropic mixtures
ActiveUS9376937B2Thermally matched wellSimple configurationReciprocating combination enginesCombination enginesWorking fluidZeotropic mixture
A method and system for generating power from low- and mid-temperature heat sources using a zeotropic mixture as a working fluid. The zeotropic mixture working fluid is compressed to pressures above critical and heated to a supercritical state. The zeotropic mixture working fluid is then expanded to extract power. The zeotropic mixture working fluid is then condensed, subcooled, and collected for recirculation and recompression.
Owner:UNIV OF SOUTH FLORIDA
Supercritical steam combined cycle and method
ActiveUS20090090111A1Reduce irreversibilityCombined cycle performanceGas turbine plantsSteam engine plantsExhaust fumesEngineering
A supercritical steam combined cycle system including a gas turbine; a supercritical steam turbine system including a supercritical section, a high pressure section, an intermediate pressure section and at least one low pressure section; and a supercritical steam heat recovery steam generator (HRSG) for receiving exhaust gas from the gas turbine for heating fluid from the steam turbine system. The HRSG includes a supercritical evaporator arranged to supply steam to a superheater between the supercritical evaporator and the inlet of the HRSG and a reheater receiving cold reheat steam from and returning reheated steam to the steam turbine system. The reheater includes a first section disposed downstream of and a second section disposed upstream of the supercritical evaporator along the exhaust gas flow path. Cool reheat steam from the steam turbine system is received by the first reheater section and steam leaving the first reheater section is supplied to the second reheater section upstream of the supercritical evaporator.
Owner:GENERAL ELECTRIC CO
Inner thermal storage solar low-temperature thermal power generation system
InactiveCN101614196AGuaranteed uptimeReduce the average heat transfer temperature differenceFrom solar energySteam engine plantsOrganic Rankine cycleThermal energy storage
The invention relates to an inner thermal storage solar low-temperature thermal power generation system. The power generation system comprises a compound parabolic heat collector system, a thermal storage system and an organic Rankine cycle power generation system, wherein, the compound parabolic heat collector system comprises a high-temperature end compound parabolic heat collector array and a low-temperature end compound parabolic heat collector array; the thermal storage system comprises a liquid storage tank, a coil and a phase-change material; and the coil is evenly distributed in the liquid storage tank and the coil is internally filled with the phase-change material. The organic Rankine cycle power generation system comprises an evaporator, a steam turbine, a motor, a heat regenerator, a condenser, two pumps and six valves. Compared with the traditional solar thermal power generation system, the inner thermal storage solar low-temperature thermal power generation system is characterized in that: an inlet end of the steam turbine is provided with a phase-change thermal storage system which usually has very small power of thermal storage and heat release, thus reducing the average heat-exchange temperature difference between the phase-change material and an organic working substance; and on the other hand, a two-stage evaporator of a two-phase region and a liquid region is adopted in the system, thus being capable of reducing heat transfer irreversibility between heat-transfer fluid and the organic working substance, and lowering the average operating temperature of the heat collectors.
Owner:UNIV OF SCI & TECH OF CHINA
Solar-energy low-temperature thermal power-generation and photovoltaic power-generation combination system
InactiveCN101608606AValid conversionIncrease steam pressureFrom solar energyPhotovoltaicsOrganic Rankine cycleLiquid storage tank
The invention relates to a solar-energy low-temperature thermal power-generation and photovoltaic power-generation combination system, comprising a compound parabolic collector system, a heat storage system, an organic rankine cycle power-generation system, a photovoltaic module and a photovoltaic power-supply system, wherein the compound parabolic collector system comprises a high-temperature end compound parabolic collector array and a low-temperature end compound parabolic collector array, and the photovoltaic module is arranged on the upper part of a heat absorber of the compound parabolic collector; the heat storage system comprises a liquid storage tank in which coil pipes are equally arranged, and PCM (phase change material) is filled in the coil pipes; the organic rankine cycle power-generation system comprises an evaporator, a steam turbine, a generator, a heat regenerator, a condenser, two pumps and six valves. The total power-generation efficiency of the combination system is greatly enhanced; and the adoption of the heat storage system avoids the application of additional accumulators and complicated tracking devices, thus reducing cost; and the adoption of two-class evaporator reduces non-reversibility of heat transmission of heat-exchanging fluid and organic work-medium so as to reduce average running temperature, thus being in favor of prolonging service life of photovoltaic cells.
Owner:UNIV OF SCI & TECH OF CHINA
High temperature, high pressure electrolyser with allothermal functioning and high production capacity
InactiveUS20100200421A1Reduce intensityLimited electrical powerCellsPhotography auxillary processesHeat carrierEngineering
An electrolyser for high-temperature electrolysis configured to operate in an allothermal mode, including an enclosure configured to maintain an electrolytic bath under high or very high pressure of several tens of bars, in which at least one electrolysis plate is arranged, and a heater internal to the enclosure. The electrolysis plate includes a plurality of electrolysis cells lying side by side in substantially one same plane, each electrolysis cell including an anode and a cathode. The heater uses a heat-carrier fluid.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Integrated process for CO2 capture and use in thermal power production cycle
ActiveUS9598993B2Improve efficiencyMaximize recoveryGas treatmentInternal combustion piston enginesCombustionOn board
A process for reducing the amount of CO2 released into the atmosphere with the exhaust gas stream produced by the combustion of a hydrocarbon fuel in an internal combustion engine (ICE) used to power a vehicle by capturing at least a portion of the CO2 in a liquid sorbent on board the vehicle, recovering the CO2 from the sorbent and compressing the CO2 for temporary storage on board the vehicle, where the process is operated as a semi-closed system in which the liquid sorbent that captures the CO2 serves as a working fluid and retains the CO2 during the power generation cycle to produce mechanical energy or work, after which the CO2 is desorbed for densification and recovery as an essentially pure gas stream and the working fluid is recycled for use in the process.
Owner:SAUDI ARABIAN OIL CO
Supercritical steam combined cycle and method
ActiveUS7874162B2Reduce irreversibilityCombined cycle performanceGas turbine plantsSteam engine plantsExhaust fumesEngineering
Owner:GE INFRASTRUCTURE TECH INT LLC
Vapour compression device and method of performing an associated transcritical cycle
InactiveUS7818978B2Improve cycle efficiencyReduce irreversibilityCompression machines with non-reversible cycleEvaporators/condensersTranscritical cycleCompression device
A vapour compression device including an internal heat exchanger, a low-pressure compressor and an associated gas cooler, a fluid distributor separating the fluid into a main circuit of the cycle and into an auxiliary cooling circuit of the cycle, an auxiliary expansion system placed on the auxiliary cooling circuit, and a main expansion system placed on the main circuit of the cycle. The device also includes a high-pressure compressor and an associated gas cooler placed on the main circuit of the cycle. A method for performing a transcritical fluid cycle including a substantially isentropic compression step of the fluid, on the main circuit of the cycle, to reach a maximum high pressure greater than a critical pressure of the fluid, and an isobaric cooling step of the fluid to substantially reach a cold source temperature.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Gasification method for classification conversion of hydrocarbon components of coal
ActiveCN103060012AReduce irreversibilityIncreased gasification efficiencyEnergy inputHydrogen productionChemistryCarbon dioxide
Owner:INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
Vapour compression device and method of performing an associated transcritical cycle
InactiveUS20080127672A1Improve cycle efficiencyReduce irreversibilityCompression machines with non-reversible cycleEvaporators/condensersTranscritical cycleCompression device
The vapour compression device according to the invention comprises an internal heat exchanger, a low-pressure compressor and an associated gas cooler, a fluid distributor separating the fluid into a main circuit of the cycle and into an auxiliary cooling circuit of the cycle, an auxiliary expansion system placed on the auxiliary cooling circuit, and a main expansion system placed on the main circuit of the cycle. The device also comprises a high-pressure compressor and an associated gas cooler placed on the main circuit of the cycle. The method for performing a transcritical fluid cycle according to the invention preferably comprises an isentropic compression step of the fluid, on the main circuit of the cycle, to reach a maximum high pressure greater than a critical pressure of the fluid, and an isobaric cooling step of the fluid to substantially reach a cold source temperature.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Multi-working-medium backheating type Rankine cycle system
ActiveCN103114881ARaise the average heating temperatureHigh thermal efficiencyCombustion processIndirect carbon-dioxide mitigationAir preheaterEnhanced heat transfer
The invention relates to a multi-working-medium backheating type Rankine cycle system. The multi-working-medium backheating type Rankine cycle system utilizes a turbine to pump steam to heat the air and boiler feed water (or including liquid and gas fuel), so that the identical effect of heating feed water by pumping steam and cycling backheating is achieved. A smoke-air short circuit is effectively avoided by omitting an air preheater in a tail flue. Exhaust temperature is effectively lowered and low-temperature corrosion of smoke is avoided during heat transfer intensifying by arranging the air preheater outside a boiler and arranging a feed water overheater, a feed water heater and a phase change heat exchanger.
Owner:SHANDONG DAIRONG ENERGY SAVING ENVIRONMENTAL PROTECTION TECH
Layered oxide materials for batteries
InactiveUS20160181608A1Reduce irreversibilitySimilar capacity retentionCell electrodesSecondary cellsCharge neutralityOxidation state
Materials are presented of the formula:Ax My Mizi O2-d, where A is sodium or a mixed alkali metal including sodium as a major constituent;x>0;M is a metal or germanium;y>0;Mi, for i=1, 2, 3 . . . n, is a transition metal or an alkali metal;zi≧0 for each i=1, 2, 3 . . . n;0<d≦0.5;the values of x, y, zi and d are such as to maintain charge neutrality; andthe values of x, y, zi and d are such that x+y+Σzi>2-d.The formula includes compounds that are oxygen deficient. Further the oxidation states may or may not be integers i.e. they may be whole numbers or fractions or a combination of whole numbers and fractions and may be averaged over different crystallographic sites in the material. Such materials are useful, for example, as electrode materials in rechargeable battery applications. Also presented is a method of preparing a compound having the formula Ax My Mizi O2-d.
Owner:SHARP KK +1
Layered oxide materials for batteries
InactiveUS20160181607A1Reduce irreversibilitySimilar capacity retentionCell electrodesSecondary cellsCharge neutralityOxidation state
Materials are presented of the formula: AxMyMiziO2−d, where A is sodium or a mixed alkali metal including sodium as a major constituent; x>0.5; M is a transition metal; y>0; Mi, for i=1, 2, 3 . . . n, is a metal or germanium; z1>0 zi≧0 for each i=2, 3 . . . n; 0<d≦̸0.5; the values of x, y, zi and d are such as to maintain charge neutrality; and the values of y, zi and d are such that y+&Sgr;zi>½(2−d). The formula includes compounds that are oxygen deficient. Further the oxidation states may or may not be integers i.e. they may be whole numbers or fractions or a combination of whole numbers and fractions and may be averaged over different crystallographic sites in the material. Such materials are useful, for example, as electrode materials in rechargeable battery applications.
Owner:SHARP KK
Data destruction method, device and equipment and readable storage medium
InactiveCN111324916AImprove destruction efficiencyReduce regularityInternal/peripheral component protectionSoftware engineeringDatabase
The invention discloses a data destruction method, device and equipment and a readable storage medium. The method disclosed by the invention comprises the following steps: if a data destruction instruction is received, determining a storage position of to-be-destructed data according to the data destruction instruction; processing the target data by using a Knuth-Durstenfeld Shuffle algorithm to obtain disordered data, and performing overwriting operation on the storage position by using the disordered data; and processing the disordered data by using a hash direct remainder method to obtain atarget hash value, and performing overwriting operation on the storage position again by using the target hash value. The data destruction method and device can improve the data destruction efficiency, reduce the possibility that the destructed data is recovered, and improve the security of the destructed data. Correspondingly, the invention also discloses a data destruction device and equipmentand a readable storage medium, which also have the above technical effects.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
Eccentric push member device for motor vehicle rack-and-pinion steering assembly
InactiveUS20110303034A1Easy to operateControl movementPortable liftingMechanical steering gearsEngineeringMechanical engineering
The push member device (1) of the present invention includes a rotatable mounting (4), the inner circumference (5) of which is eccentric relative to the outer circumference (6). The mounting (4) is rotationally biased in a direction by a spring (10) and is placed against the back of the rack (2) that is thus pushed against the teeth of the steering pinion. The rotatable mounting (4) is rotatably mounted in a housing (7), itself being slidably mounted in the steering gearbox. A shock absorbing spring means (11) is arranged between the sliding housing (7) and the steering gearbox to absorb the alignment defects of the rack (2).
Owner:JTEKT EURO
System and method for integrated air separation and liquefaction
InactiveUS20160245585A1Increase discharge pressureIncrease the compression ratioSolidificationLiquefactionLiquid productAir separation
A high efficiency and high volume air liquefaction system and method is disclosed wherein the cryogenic air separation plant includes a warm gas turbo-expansion cycle to supply the supplemental refrigeration required to produce liquid products in excess of about 15% of the incoming feed air.
Owner:PRAXAIR TECH INC
Hydrogen liquefaction device with pre-cooling throttling function
PendingCN112539601AReduce irreversibilityImprove efficiencySolidificationLiquefactionHydrogen productionHeat exchanger
The invention belongs to the technical field of hydrogen production equipment, and particularly relates to a hydrogen liquefaction device with a pre-cooling throttling function. The device comprises ahydrogen liquefaction route for conveying raw material hydrogen and a hydrogen circulation route for conveying circulating hydrogen, and the two routes respectively and sequentially pass through a primary pre-cooling section, a secondary pre-cooling section and a liquefaction section. The primary pre-cooling section is provided with a heat exchanger I and a normal-pressure liquid nitrogen pre-cooler; and the secondary pre-cooling section is provided with a heat exchanger II and a negative-pressure liquid nitrogen pre-cooler. After the hydrogen liquefaction route passes through the first heatexchanger and the normal-pressure liquid nitrogen pre-cooler to be precooled, the hydrogen liquefaction route enters the second heat exchanger and the negative-pressure liquid nitrogen pre-cooler to be continuously cooled. According to the hydrogen liquefaction device with the pre-cooling throttling function, a two-stage pre-cooling structure of the normal-pressure liquid nitrogen pre-cooler and the negative-pressure liquid nitrogen pre-cooler is adopted, and the liquefaction effect is better.
Owner:浙江海畅气体股份有限公司
Off-centred pusher device for steering an automobile
InactiveUS20110265591A1Function increaseControl movementPortable liftingSteering gearsEngineeringSprocket
The invention relates to a pusher device (8) that includes a rotary bearing (10) having an inner periphery (11) that is off-centre relative to the outer periphery (12). In order to compensate for wear, the bearing (10) is rotationally urged in one direction (F) by a spring (10) and is thus pressed against the back (9) of a rack (3) that is then pushed back against the teeth of the steering sprocket (5). The rotary bearing (10) is rotatingly mounted in a housing (13) that is in turn mounted on a steering casing (2) so as to be capable of sliding in a direction (B) parallel to a plane (P) of the teeth (6) of the rack (3) and orthogonal to the axis (A) of said rack. Shock-absorbing spring means (20, 21) are arranged between the sliding housing (13) and the steering casing (2) for absorbing the straightness defects of the rack (3).
Owner:JTEKT EURO
Expansion turbine stage
InactiveUS6948320B2Degree of effectiveness is increasedHigh enthalpyPump componentsGas turbine plantsThermal insulationMetallic materials
An expansion turbine stage for compressed gases has a housing and a turbine rotor. The housing has flow guide channels for feeding the compressed gas to the turbine rotor. The turbine rotor, which is over-mounted and has centripetal flow through it, is followed by an out-flow diffuser enclosed by the housing, to delay the cold expanded gas. The out-flow diffuser is arranged in a holder bore in the housing, as a separate component. For thermal insulation of the housing relative to the cold expanded gas stream, the out-flow diffuser is made of a non-metallic material having a low heat conductivity.
Owner:ATLAS COPCO ENERGAS
Pneumatic propulsion system for high capacity transport of passengers and/or cargo
ActiveUS20200164900A1Reduce impactReduce irreversibilityRailway componentsPropulsion railway systemsWheel and axleClassical mechanics
A propulsion system is composed of vehicles with four wheels having one of the axles connected to a pylon attached to the propulsion plate. The vehicles move over rails of elevated guideways supported by pillars. The top of the elevated guideways has longitudinal slots for allowing passage of pylons of propulsion plates. The elevated guideway is dual and has two power propulsion units for propulsion operation in a push and / or pull mode, one for each elevated guideway. The power propulsion units are installed inside the machine rooms under the pavement of the sob passenger stations supported on pillars. The power propulsion units are connected to the elevated guideways by means of connection ducts. Secondary propulsion ducts are disposed in parallel with the propulsion duct and integrated with its respective flow direction valve which allows that the air flow generated by the power propulsion unit is discharged in the propulsion duct in two distinct positions. The pneumatic propulsion arrangement is completed by isolation valve sets of the guideway section, atmospheric valve sets, set of four air flow control valves mounted in the connection ducts of the power propulsion units and flow direction valves.
Owner:AEROM REPRESENTACOES E PARTICIPACOES LTDA
Solar-energy low-temperature thermal power-generation and photovoltaic power-generation combination system
InactiveCN101608606BImprove power generation efficiencyThere is no problem of lossFrom solar energyPhotovoltaicsOrganic Rankine cycleHeat transmission
The invention relates to a solar-energy low-temperature thermal power-generation and photovoltaic power-generation combination system, comprising a compound parabolic collector system, a heat storage system, an organic rankine cycle power-generation system, a photovoltaic module and a photovoltaic power-supply system, wherein the compound parabolic collector system comprises a high-temperature end compound parabolic collector array and a low-temperature end compound parabolic collector array, and the photovoltaic module is arranged on the upper part of a heat absorber of the compound parabolic collector; the heat storage system comprises a liquid storage tank in which coil pipes are equally arranged, and PCM (phase change material) is filled in the coil pipes; the organic rankine cycle power-generation system comprises an evaporator, a steam turbine, a generator, a heat regenerator, a condenser, two pumps and six valves. The total power-generation efficiency of the combination system is greatly enhanced; and the adoption of the heat storage system avoids the application of additional accumulators and complicated tracking devices, thus reducing cost; and the adoption of two-class evaporator reduces non-reversibility of heat transmission of heat-exchanging fluid and organic work-medium so as to reduce average running temperature, thus being in favor of prolonging service life ofphotovoltaic cells.
Owner:UNIV OF SCI & TECH OF CHINA
Pneumatic propulsion system for high capacity transport of passengers and/or cargo
ActiveUS11130504B2Reduce impactReduce irreversibilityRailway componentsPropulsion railway systemsIsolation valveClassical mechanics
A propulsion system is composed of vehicles with four wheels having one of the axles connected to a pylon attached to the propulsion plate. The vehicles move over rails of elevated guideways supported by pillars. The top of the elevated guideways has longitudinal slots for allowing passage of pylons of propulsion plates. The elevated guideway is dual and has two power propulsion units for propulsion operation in a push and / or pull mode, one for each elevated guideway. The power propulsion units are installed inside the machine rooms under the pavement of the sob passenger stations supported on pillars. The power propulsion units are connected to the elevated guideways by means of connection ducts. Secondary propulsion ducts are disposed in parallel with the propulsion duct and integrated with its respective flow direction valve which allows that the air flow generated by the power propulsion unit is discharged in the propulsion duct in two distinct positions. The pneumatic propulsion arrangement is completed by isolation valve sets of the guideway section, atmospheric valve sets, set of four air flow control valves mounted in the connection ducts of the power propulsion units and flow direction valves.
Owner:AEROM REPRESENTACOES E PARTICIPACOES LTDA
High temperature, high pressure electrolyser with allothermal functioning and high production capacity
InactiveUS8647478B2Reduce intensityLimited electrical powerCellsPhotography auxillary processesHeat carrierEngineering
An electrolyser for high-temperature electrolysis configured to operate in an allothermal mode, including an enclosure configured to maintain an electrolytic bath under high or very high pressure of several tens of bars, in which at least one electrolysis plate is arranged, and a heater internal to the enclosure. The electrolysis plate includes a plurality of electrolysis cells lying side by side in substantially one same plane, each electrolysis cell including an anode and a cathode. The heater uses a heat-carrier fluid.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Layered oxide materials for batteries
InactiveUS9653731B2Reduce irreversibilitySimilar capacity retentionCell electrodesSecondary cellsCharge neutralityOxidation state
Materials are presented of the formula:AxMyMiziO2−d,where A is sodium or a mixed alkali metal including sodium as a major constituent;x>0.5;M is a transition metal;y>0;Mi, for i=1, 2, 3 . . . n, is a metal or germanium;z1>0zi≧0 for each i=2, 3 . . . n;0<d≦0.5;the values of x, y, zi and d are such as to maintain charge neutrality; and the values of y, zi and d are such that y+Σzi>½(2−d). The formula includes compounds that are oxygen deficient. Further the oxidation states may or may not be integers i.e. they may be whole numbers or fractions or a combination of whole numbers and fractions and may be averaged over different crystallographic sites in the material. Such materials are useful, for example, as electrode materials in rechargeable battery applications.
Owner:SHARP KK
A ni-mn-based ferromagnetic shape memory alloy and piezoelectric composite material with magnetic card effect and its application
InactiveCN104167488BSmall hysteresisReduce irreversibilityGalvano-magnetic material selectionShape-memory alloyPiezoelectric composite
The invention discloses a magneto-caloric Ni-Mn-based ferromagnetic-shape memory alloy and piezoelectric composite material composed of a Ni-Mn-based ferromagnetic-shape memory alloy and a piezoelectric. The piezoelectric material is Pb(Zr, Ti)O3(PZT) or 0.7Pb (Mn1 / 3Nb2 / 3)O3-0.3PbTiO3(PMN-PT). The molecular formula of the Ni-Mn-based ferromagnetic-shape memory alloy is Ni-Co-Mn-In, Ni-Mn-In, Ni-Mn-Sn, Ni-Mn-Co-Sn. The two materials are both flaky materials and are attached to each other to form the composite material. The thickness of the ferromagnetic-shape memory alloy is 1-2mm, and is formed by overlapping rapid-quenching thin bands or is an integral block, wherein each rapid-quenching thin band is 20-50 microns thick. The thickness of the piezoelectric is 0.4-0.8mm.
Owner:NANJING UNIV
Layered oxide materials for batteries
InactiveUS9660263B2Reduce irreversibilitySimilar capacity retentionCell electrodesSecondary cellsCharge neutralityOxidation state
Materials are presented of the formula:Ax My Mizi O2−d, where A is sodium or a mixed alkali metal including sodium as a major constituent;x>0;M is a metal or germanium;y>0;Mi, for i=1, 2, 3 . . . n, is a transition metal or an alkali metal;zi≧0 for each i=1, 2, 3 . . . n;0<d≦0.5;the values of x, y, zi and d are such as to maintain charge neutrality; andthe values of x, y, zi and d are such that x+y+Σzi>2−d.The formula includes compounds that are oxygen deficient. Further the oxidation states may or may not be integers i.e. they may be whole numbers or fractions or a combination of whole numbers and fractions and may be averaged over different crystallographic sites in the material. Such materials are useful, for example, as electrode materials in rechargeable battery applications. Also presented is a method of preparing a compound having the formula Ax My Mizi O2−d.
Owner:SHARP KK +1
Separation method and device for coupling type alkane catalytic dehydrogenation reaction product
PendingCN114573415AReduce separation energy consumptionSave energySolidificationLiquefactionChemistryProcess engineering
The invention relates to a method and a device for separating a coupled alkane catalytic dehydrogenation reaction product, and the method comprises the following steps: inputting product gas at an outlet of an alkane dehydrogenation reactor into a cold box system to obtain a cooled product; the cooled product is input into N stages of gas-liquid separation tanks connected in series for gas-liquid separation, and then gas-phase products obtained from the first stage to the (N-1) th stage are input into the cold box system again; liquid-phase products obtained at the 1-N stages are collected, reheated and sent out of a boundary area, and then separation of products with different carbon numbers of the liquid-phase products is achieved through a separation tower; circulating gas obtained at the top of the Nth-stage separation tank and fresh propane are subjected to M-stage mixing according to a preset hydrogen / hydrocarbon ratio and subjected to throttling evaporation in a cold box system, and cold energy is provided for the cold box system; introducing the tail gas at the top of the dethanizer into a cold box system, and providing cold energy for the cold box system; and the cold energy of the cold box system also comes from an external refrigeration cycle system. Separation energy consumption can be reduced, product loss is reduced, the technological process is simple and environmentally friendly, equipment is compact, and starting / stopping is convenient and fast.
Owner:WISON ENG
Board slot combined solar energy and thermal power station complementary generating system
ActiveCN102454440BReduce irreversibilityHigh thermal efficiencySteam generation heating methodsSolar heat devicesWater vaporDeaerator
The invention discloses a board slot combined solar energy and thermal power station complementary generating system which comprises a coal-fired boiler, a steam turbine, a generator, a condenser, a condensate pump, an oil-water heat exchanger of a low-pressure solar feed water heater, a flat-plate solar collector, a first parabolic trough type solar collector, a deaerator, a high-pressure water pump, an oil-water heat exchanger of a high-pressure solar feed water heater and a second parabolic trough type solar collector, wherein the steam turbine comprises a high-pressure cylinder, an intermediate-pressure cylinder and a low-pressure cylinder; high-temperature and high-pressure steam generated in the coal-fired boiler does work by expansion in the high-pressure cylinder, the intermediate-pressure cylinder and the low-pressure cylinder of the steam turbine to drive a generator to rotate and output an electrical load externally. The generating system can be used for realizing the capacity expansion and consumption reduction of thermal power stations and solving the problem that the solar energy is unstable and discontinuous, and is beneficial to low-cost transformation of the thermal power stations and large-scale application and popularization of a solar energy technology.
Owner:INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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