733 results about "Thermal desorption" patented technology

The invention belongs to the technical field of magnetic confinement controllable thermonuclear fusion, and particularly relates to an in-situ laser diagnosis system and method for plasma fuel thermal desorption / impurity deposition in a wall material. The long-pulse laser module emits a long-pulse laser beam, and the long-pulse laser beam sequentially passes through the dichroscope I, the convex lens, the dichroscope II and quartz glass on the vacuum chamber and is irradiated to the surface of the sample to be detected; the short-pulse laser module emits a short-pulse laser beam, and the short-pulse laser beam sequentially passes through the dichroscope I, the convex lens, the dichroscope II and quartz glass on the vacuum chamber of the fusion device and is irradiated to the surface of the sample to be detected; the irradiated radiation light of the to-be-detected sample sequentially passes through the focusing lens, and a spectral signal is transmitted to the spectrum acquisition system. According to the system, high-efficiency in-situ laser thermal desorption can be carried out on fuel gas retained in a wall material, in-situ laser diagnosis of impurity deposition can also be carried out, the two methods are flexibly coupled into one set of system and can be independently used or simultaneously carried out, and a reference basis is provided for fusion reactor divertor operation control and wall material research and development in the future.

A method of desorbing CO2 from an aqueous liquid comprising CO2, the method comprising the steps of: a) providing said aqueous liquid in the form of an aqueous colloidal solution comprising (i) a CO2 absorbent having CO2 absorbed thereto and (ii) colloidal catalyst having a core-shell structure in which the shell comprises proton-donor groups, and b) thermally desorbing CO2 from the CO2 absorbent, wherein the thermal desorption of the CO2 is catalysed by the colloidal catalyst.

The invention discloses a transformer substation cable trench VOCS monitoring system, comprising: an acquisition unit comprising a plurality of sampling joints arranged in a cable trench, a pretreatment gas circuit for converging, filtering and drying the plurality of sampling joints, a direct acquisition branch, an inspection enrichment branch, an on-line enrichment branch, and a conveying gas circuit; the sampling analysis unit comprises a purging gas circuit, a vacuum gas circuit, an atmosphere bypass gas circuit and a collection analysis gas circuit which are connected with the conveying gas circuit through a pipeline, and the submission enrichment branch comprises an adsorption sampling module which can be detached for submission. The on-line enrichment branch comprises an on-line thermal desorption adsorption sampling module and a thermal desorption inspection gas path connected with a thermal desorption interface of the on-line thermal desorption adsorption sampling module, the thermal desorption inspection gas path is connected to a collection and analysis gas path, and the collection and analysis gas path is used for carrying out on-line analysis on VOCS gas from the direct collection branch and the thermal desorption inspection gas path. According to the invention, comprehensive collection and dynamic monitoring of the VOCs with wide boiling point and high and low concentrations in the cable trench are realized.

Improved gas sample preprocessing is provided for scanning optical spectroscopic analysis instruments by tailoring characteristic gas handling times to the scan time Ts of the analysis instrument. In particular, for sample preconcentration, the desorption duration Td of the sample preconcentrator should be ≥2Ts. For gas chromatography, the elution duration Te of relevant eluted species should be ≥2Ts. This advantageously avoids having significant changes in the gas sample within the analysis instrument as a scan is being performed.

The invention provides a system and method for improving the ability of activated carbon to adsorb medium and low temperature VOCs waste gas, and the system comprises: a heat exchanger for introducing steam heat of the medium and low temperature VOCs waste gas to perform waste heat recovery to generate high temperature circulating water; the refrigerating system is used for receiving the high-temperature circulating water through a pipeline and recovering heat of the high-temperature circulating water to enable the refrigerating system to generate a refrigerant, and the refrigerant enters the heat exchanger to exchange heat with the medium-low-temperature VOCs waste gas; the activated carbon fixed bed adsorption device is used for receiving the medium and low temperature VOCs waste gas after heat exchange and adsorbing organic gas in the waste gas; the steam thermal desorption device is used for introducing steam into the activated carbon fixed bed adsorption device for desorption after the activated carbon fixed bed adsorption device is saturated in adsorption, and the steam takes away the organic gas adsorbed by the activated carbon fixed bed adsorption device and enters a downstream phase change heat exchanger; and the phase change heat exchanger is used for recycling steam heat after analysis by using circulating water to generate high-temperature circulating water, and after heat is recycled, waste gas is condensed, so that organic gas is dissolved in water to form an organic solvent to be recycled.

The present invention discloses a monatomic fluid driven carbon dioxide methanation conversion system and a method of use, comprising an absorption device and a desorption conversion device, wherein the liquid outlet of the absorption device is connected to the first inlet of a heat exchanger via a first pump, the first outlet of the heat exchanger is connected to the inlet of a desorption conversion device, the liquid outlet of the desorption conversion device is connected to the second inlet of the heat exchanger via a second pump, and the second outlet of the heat exchanger is connected to the liquid inlet of the absorption device via a cooler. The use of monatomic fluid as a solvent in the present invention can not only generate electric charge and effectively solve the problem of high energy consumption caused by desorption of CO2 due to thermal desorption, but also couple thermal and electric charge effects to greatly break through the high energy consumption bottleneck caused by reaction temperature faced by traditional thermal desorption, and greatly reduce the reaction energy barrier and reaction heat. During the desorption process, the charge effect of the molecules in the solvent combined with CO2 can promote the realization of efficient methanation conversion of CO2.

The invention provides a shale oil pyrolysis adsorption oil and free oil correction method based on a nuclear magnetic experiment, and belongs to the field of exploration and development of unconventional oil and gas fields. According to the method, on the basis of a shale rock physical experiment and a shale nuclear magnetic resonance experiment, the occurrence space and content of adsorbed oil are determined by using multi-state nuclear magnetic resonance experiments such as original sample, saturated oil, washing oil and different temperatures, so that a nuclear magnetic adsorbed oil model is constructed, and the content of the adsorbed oil is determined by further combining a different-temperature-order parallel crushed sample lithologic pyrolysis experiment-nuclear magnetic combined measurement experiment. The content of the free oil and the content of the adsorbed oil are calculated through the two-dimensional nuclear magnetism T1-T2 spectrum semaphore, the content of the free oil and the content of the adsorbed oil are compared and analyzed, the difference between the nuclear magnetism adsorbed oil and the pyrolysis adsorbed oil is matched with a free hydrocarbon curve to achieve adsorbed oil correction, and the free oil and the adsorbed oil are obtained.

The invention provides a novel CO2 capture phase change absorbent, and belongs to the technical field of absorbents, an amino-azolyl bifunctional ionic liquid-organic alcohol-water ternary phase change system is adopted, an ionic liquid containing an active group is adopted as a main absorbent, propyl alcohol is adopted as a phase splitting agent, and finally water is added as a solvent to reduce the viscosity of a rich-phase solution. The absorption load and the absorption capacity can be ensured, the hydrolysis conversion of carbamate can be promoted, and the defect of low regeneration efficiency is overcome; the phase change absorbent prepared by the method can still be used after multiple thermal desorption, the absorbent has good thermal stability and has good economic advantages in reusability, and the system can effectively make up for the defects of the current phase change absorbent in industrial popularization.

The invention discloses an injection molding high-density alloy steel sintering integrated preparation process, which comprises the steps of alloy raw material proportioning, feed preparation, injection molding, continuous thermal desorption sintering treatment and enhanced heat treatment, and comprises the following steps: selecting gas atomization pure iron powder subjected to vacuum reduction treatment, and matching with chromium, nickel, molybdenum, vanadium, carbon, silicon, manganese and iron powder multi-component alloy proportioning; a phenolic resin-polyformaldehyde composite binder is adopted, 0.5-1.5% of a lubricating additive is added, internal mixing parameters are controlled under the protection of inert gas according to the powder-to-rubber ratio of 72-77%: 23-28%, and the problem that the compatibility of a single binder and alloy powder is poor is solved; three-section gradient temperature control injection molding and a continuous atmosphere furnace sectional degreasing-sintering integrated process are combined, and strengthening heat treatment is matched, so that sufficient diffusion of elements and densification of a green body are realized, and defects are avoided. The technology effectively solves the technical problems that traditional raw materials are high in impurity content and insufficient in element diffusion, and therefore the alloy steel sintering preparation efficiency can be improved.

The invention provides a flue gas purification and CO2 capture coupling system and a carbon capture method. Wherein the flue gas purification and CO2 capture coupling system comprises a flue gas generation device, a flue gas purification device and a CO2 capture device, the CO2 capture device comprises an absorption tower and a regeneration tower, an absorbent rich solution with CO2 captured in the absorption tower flows into the regeneration tower and is heated and desorbed into regenerated gas and barren solution, and the regenerated gas and barren solution are separated from the absorption tower. Regenerated gas and the barren liquor are discharged from the regeneration tower; one part of barren liquor discharged from the regeneration tower is used for exchanging heat with high-temperature flue gas which leaves the flue gas generation equipment and does not enter the CO2 capture equipment to form overheated barren liquor, and the overheated barren liquor is returned to the regeneration tower to provide steam and heat for CO2 regeneration reaction; and the overheated barren liquor particularly refers to CO2 barren liquor which is kept in a to-be-boiled state under preset pressure. Therefore, the flue gas purification and CO2 capture coupling system disclosed by the embodiment of the invention has the advantages of low energy consumption, low capture cost, high operation stability and high safety.

The invention discloses a synchronous monitoring system and method for non-methane total hydrocarbon and volatile organic compound components, and belongs to the technical field of environmental monitoring. Comprising an adsorption tube and a monitoring assembly, the adsorption tube is detachably connected with the monitoring assembly, the monitoring assembly comprises a focusing tube, a six-way valve, a four-way valve and a gas chromatograph, and the four-way valve and the six-way valve are each provided with an emptying flow path; the six-way valve is respectively communicated with the focusing tube and the capillary chromatography sampling assembly, and the capillary chromatography sampling assembly, the capillary chromatographic column and the mass spectrometry detector are sequentially communicated; a heating assembly is arranged outside the adsorption tube, a temperature control device is arranged outside the focusing tube, a thermal desorption temperature control area is arranged outside the focusing tube, the six-way valve and the four-way valve, and a column oven is arranged outside the capillary chromatographic column. Synchronous monitoring of non-methane hydrocarbon and VOCs components is achieved through the same monitoring assembly, the occupied space is reduced, the monitoring range is expanded, meanwhile, the sampling volume of the adsorption tube is flexible and controllable, and the sample preservation time is long.

The invention belongs to the field of long-chain alkane online analysis systems, and discloses a long-chain alkane online analysis method and system based on comprehensive two-dimensional gas chromatography and an aerosol thermal desorption analyzer. The method comprises the following steps: during sampling, sucking ambient air through a cyclone separator with a PM2.5 cutting head, then removing gas-phase organic matters through a multi-channel carbon remover, and then intensively collecting particulate matters to a thermal desorption unit (CTD); the analyte after thermal desorption is re-concentrated into a focusing trap (FT) at 45 DEG C; starting separation and analysis of GC * GC-MS (gas chromatography-mass spectrometry); and the separated compound enters a mass spectrometer for mass spectrometry. According to the method, the total time from pollutant collection to analysis is controlled within two hours, and the change characteristics of long-chain alkane in the generation and elimination process of a pollution event can be effectively captured.

The invention belongs to the technical field of expiration detection, and particularly relates to an intelligent expiration tail end gas sampling device and method. The device specifically comprises a shell, a circuit board, a carbon dioxide sensor, a pressure sensor, a baffle, a top cover, a suspension plate, an air pump, a relay, a breathing mask, a mask connector with an internal small cavity, a thermal desorption tube, a TD tube, a Bluetooth module, an air path channel, a silicone tube and the like. End-expiratory gas collection is achieved through accurate triggering and flow control, and dead space gas mixing is avoided; collected gas is directly enriched into a thermal desorption (TD) adsorption tube, so that the loss of VOCs in the transmission and storage process is reduced; and through quantitative sampling volume control and an optimized pipeline material / structure, the adsorption / release and background pollution of the device body to the sample are reduced, so that the representativeness and sensitivity of sampling and the repeatability among different operators / different places are improved.

The invention discloses a method for simply extracting and accurately determining and quantifying micro-nano plastic in biological fluid. The method comprises the following steps: heating and digesting the biological fluid by using a strong oxidant; after digestion, adding a moistening solution for ultrasonic treatment, collecting the treated solution, and detecting the particle size of particles in part of the mixed solution; and filtering the residual mixed solution to separate out the micro-plastics. Meanwhile, collecting a filtrate containing the nano plastic, and directly transferring the filtrate into a sample boat to be heated and concentrated until the filtrate is dry; and a thermal cracking / thermal desorption-gas chromatograph-mass spectrometer is used for detecting the types and contents of the medium-micro plastic and the nano plastic. According to the method, the micro-nano plastic in different biological fluids can be simply extracted, accurate qualitation and quantification can be realized, and the technical bottlenecks that the extraction of the micro-nano plastic in the biological fluids is tedious and the particle size of the micro-nano plastic particles and accurate qualitation and quantification cannot be considered at the same time at present are broken; and an available technical method is provided for comprehensively and deeply analyzing the in-vivo health risk of the micro-nano plastic.

A direct air carbon capture system coupled with a closed cooling tower fan comprises a direct air carbon capture device coupled with the closed cooling tower fan through a heat exchanger; a fan of the closed cooling tower is communicated with a gas path of the heat exchanger and is used for conveying wet and hot air in the closed cooling tower to the heat exchanger; the heat exchanger is used for cooling and dehumidifying wet and hot air, and the treated adsorption gas is conveyed to the direct air carbon capture device; the direct air carbon capture device comprises at least one group of adsorption-desorption towers and is used for carrying out direct carbon capture and thermal desorption on the adsorbed gas to obtain high-concentration CO2 gas. And other air conveying devices do not need to be additionally arranged to provide power, so that the energy consumption is reduced, the traditional treatment flow is optimized, the complexity of the system is reduced, and the cost is greatly reduced. The heat exchanger is adopted to treat wet and hot air, collected heat energy is used for providing energy for the CO2 thermal desorption process, waste heat utilization is achieved, and the energy utilization rate is increased.

The utility model relates to a system suitable for purification treatment of organic contaminated soil, which comprises a thermal desorption unit, a primary purification unit, a secondary purification unit, a GWH heat exchanger and an adsorption unit which are connected in sequence, and further comprises a GGH heat exchanger, the thermal desorption unit is of an indirect heating structure and is internally provided with a soil channel and externally provided with a heating channel; the adsorption unit is connected with a recycled flue gas inlet in the heating channel through a purified flue gas pipeline, and a fan is arranged on the purified flue gas pipeline. According to the utility model, the organic polluted soil can be efficiently purified in an industrial plant, the operation is reliable, the investment and operation cost is low, the service life of equipment is long, and secondary pollution is avoided.

The invention discloses a mixing and feeding device for thermal desorption treatment of drilling cuttings and a using method, and relates to the technical field of drilling cuttings processing.The device comprises a mixing pool, a stand column is vertically installed in the center of the bottom of the mixing pool, and four supporting arms are rotationally connected to the upper end of the side wall of the stand column in a circumferential array mode; a supporting rod is vertically installed at the end, away from the stand column, of the supporting arm, moving wheels are installed at the lower end of the supporting rod, a material distributing mechanism used for stacking and distributing dry materials and wet materials is arranged on the supporting arm, and a mixing mechanism used for mixing the dry materials and the wet materials is arranged on the supporting arm. A dry material and a wet material are added to the two hoppers respectively, the two hoppers rotate, the dry material and the wet material are stacked together, mixing of the dry material and the wet material is facilitated, a second gear rolls along a second gear ring, a mixing spiral blade rotates, the mixing spiral blade lifts and turns over the dry material and the wet material, and the mixing efficiency of the dry material and the wet material is improved. And mixing the dry material and the wet material.

The invention belongs to the technical field of air quality management, and discloses an organic aerosol source analysis method based on online observation of an organic molecular marker. According to the method for realizing high-time-resolution on-line real-time observation and measurement of the concentration of the organic aerosol molecular marker, on the basis of original PM2.5 conventional component concentration data, concentration data of the organic aerosol organic molecular marker, which has high recognition degree and is obtained based on high-time-resolution on-line real-time observation, is added. According to the method, accurate identification and scientific and quantitative source analysis of the source of the atmospheric organic aerosol can be realized, a more scientific, accurate and rich quantitative source analysis result is obtained, more scientific and accurate prevention and control suggestions are provided for atmospheric environment quality management, and important scientific and technological support is provided for atmospheric environment quality management of government departments.

The invention relates to a ceramic filler for catalytic desorption of carbon dioxide and a preparation method thereof, and the ceramic filler comprises, based on the total weight of the ceramic filler, 70-95 wt% of a matrix material, 0.8-20 wt% of an active component loaded on the matrix material, and 0.3-15 wt% of an organic dopant; the matrix material comprises one or more of porous materials; the active component is selected from one or more of metal oxides and non-metal oxides; wherein the metal is selected from one or more of IIIA group elements, IVB group elements and VIII group elements, and the nonmetal is selected from one or more of IIIA group elements and IVA group elements. In the thermal desorption process of the ceramic filler, reaction barriers can be reduced, the reaction rate can be increased, and the desorption temperature of an organic amine absorbent can be reduced.

The utility model discloses a thermal desorption heating device for soil remediation, and relates to the technical field of thermal desorption for soil remediation. The thermal desorption heating device for soil remediation comprises a combustor, a smoke chamber is arranged on one side of the combustor, an air guide mechanism is arranged on one side of the smoke chamber, and a thermal circulation mechanism is arranged on one side of the smoke chamber. According to the thermal desorption heating device for soil remediation, by arranging a thermal circulation pipe, when heat energy needs to be recycled, firstly, hot air rising in a smoke chamber is collected through a hot air outlet pipe and enters a bearing box, and then the hot air in the hot air outlet pipe is conveyed into the thermal circulation pipe through an air guide fan; and the heat energy is conveyed into the communicating chamber through the heat circulating pipe and is conveyed into the thermal desorption roller through the communicating chamber for retreatment, so that the heat energy is convenient to recycle and reuse, and the device is convenient for recycling and reusing the heat energy.

The invention relates to the technical field of waste gas filtration and adsorption treatment, in particular to a waste gas treatment mechanism for photoresist production, which comprises a photoresist production waste gas treatment box group, and has the beneficial effects that three independent waste gas treatment units are formed by designing a heat insulation adsorption bin assembly in the photoresist production waste gas treatment box group; an adsorption bed mounting assembly is designed in each group of heat insulation adsorption bin assembly to be matched with an adsorption filter bed assembly, so that waste gas is continuously captured, adsorbed and filtered by a triangular adsorption bed during adsorption and sequentially passes through three waste gas treatment units, and the adsorption filter path of the waste gas is prolonged; during desorption, the triangular adsorption bed keeps rotating opposite to that during adsorption, so that an originally compact adsorption material in the triangular adsorption bed is loosened due to increase of a filling space, and the adsorption effect of organic compounds contained in the waste gas is improved; steam is introduced through the steam dispersing pipe, so that the adsorbed organic compounds are more easily thermally desorbed by the steam, and the desorption efficiency is improved.

The invention relates to a material performance testing technology in a hydrogen environment, and aims to provide a method for acquiring the surface hydrogen concentration of a hydrogen permeation sample by considering a hydrogen trap effect. Comprising the following steps: performing multiple groups of hydrogen permeation experiments on a to-be-tested material; fitting a hydrogen permeation curve by using test data to obtain steady-state hydrogen permeation current density and hysteresis diffusion time under different conditions, and calculating the lattice hydrogen concentration of the hydrogen-filled surface; calculating the hydrogen trap density based on the progressive analysis curve of the hydrogen diffusion kinetic equation and the lattice hydrogen diffusion coefficient of the to-be-detected material; calculating the hydrogen trap binding energy of the to-be-tested material according to a thermal desorption spectrum experiment result; and establishing a balance relationship between lattice hydrogen concentration and trap hydrogen concentration, and obtaining a concentration distribution rule in the hydrogen diffusion direction and the hydrogen concentration on the hydrogen charging surface during steady-state diffusion. According to the method, the nonlinear effect, caused by the hydrogen trap effect in the hydrogen permeation process, of hydrogen distribution in the material during steady-state hydrogen diffusion is considered, and the hydrogen concentration on the surface of the hydrogen permeation experiment material can be obtained more accurately.

The invention belongs to the technical field of carbon dioxide trapping, and particularly relates to a carbon dioxide trapping system and a carbon dioxide trapping method. Compared with a traditional thermal desorption method, the carbon dioxide trapping system based on external microwave field assisted absorbent catalytic desorption has the advantage that the microwave desorption method has higher energy utilization efficiency. The random packing catalyst has an acid catalysis function, so that the desorption amount and the carbon removal rate of the absorbent can be further improved, and the random packing catalyst has a microwave absorption function, so that heat and mass transfer in the desorption process is enhanced in a hot spot form, and the utilization of microwaves is further improved. The desorption efficiency of 60-80% can be achieved below 102 DEG C, the CO2 desorption rate is far higher than that of a traditional thermal desorption method, and latent heat consumed by water evaporation in the desorption process is remarkably reduced. Meanwhile, the CO2 removal efficiency of the absorption tower is improved, and the cost of the whole carbon capture process can be remarkably reduced.

The invention provides a method and a device for quickly and sensitively detecting a trace amount of sulfur-containing sample on site. The method comprises the following steps: adopting a Fourier deconvolution multiplexing ion mobility spectrometry technology, a negative ion mode and a thermal desorption sampling mode, and ensuring that migration gas and carrier gas do not need any chloride additive; an analysis method for directly separating an air reagent ion peak (O2 (H2O) n) and a sulfur product ion peak through ion mobility spectrometry and effectively separating sulfur-containing samples and nitrogen-containing samples such as black powder is established. According to the invention, the resolution ratio of the air reagent ion peak can be improved, the separation degree of a compound which is very close to the migration time of the air reagent ion peak can be improved, the effective separation of sulfur-containing samples such as black powder from the air reagent ion peak can be realized, and the analysis and recognition capability of the ion mobility spectrometry on the sulfur-containing samples such as black powder and nitrogen-containing samples can be improved.

The invention discloses a solar-assisted in-situ pyrolysis desorption system for soil organic pollutants. The solar-assisted in-situ pyrolysis desorption system comprises a solar heat collection device, a pyrolysis system for heating soil, an extraction system and a tail gas emission treatment system, the solar heat collection device is connected with the pyrolysis system and provides heat energy for the pyrolysis system, the pyrolysis system is connected with the extraction system, and the tail gas emission treatment system is connected with the extraction system. According to the system, a three-layer soil covering system is arranged to replace a traditional cement layer, excavation and transportation are not needed, leakage of polluted soil is avoided, the engineering earthwork volume is reduced, and low carbon and environmental protection are achieved; solar energy is used for providing a heat source for soil in-situ pyrolysis desorption, a tail gas treatment system is arranged, the structure and the working principle are simple, the heat exchange efficiency is high, pollutant desorption is fast, and good popularization value is achieved; the device has the advantages of simple structure, safety and reliability in use, low energy consumption and no tail gas emission, and provides a new scheme for energy conservation and emission reduction of a soil pyrolysis desorption technology.

The utility model discloses a petroleum drilling waste mud solid waste separation device which comprises a multi-layer mud vibrating screen device, a three-phase centrifugal machine device and a thermal desorption device, and the multi-layer mud vibrating screen device comprises a screening mechanism and a stirring mechanism. The screening mechanism comprises a slurry inlet pipe, a first slurry vibration screen and a second slurry vibration screen, the first slurry vibration screen and the second slurry vibration screen are arranged below the slurry inlet pipe, a first conveying belt is arranged at the bottom of the screening mechanism, a stirring mechanism is arranged below the screening mechanism, and a water supplementing pipe is arranged at the top of the outer side wall of the front end of the stirring mechanism. A sludge outlet pipe is arranged at the bottom of one side of the stirring mechanism, the other end of the sludge outlet pipe is connected to the three-phase centrifugal machine device, the second conveying belt is connected to the front side of the thermal desorption device, a heat preservation and insulation layer is arranged on the outer side of the thermal desorption device, and a discharging opening is formed in the bottom of the rear side of the thermal desorption device. The solid-liquid separation and landfill device is reasonable in structural design, can quickly and effectively carry out solid-liquid separation and landfill on the drilling mud, and separates out petroleum organic components.

The invention discloses a pollution source control and removal method for an underground water organic pollution site, and relates to the technical field of site remediation. Firstly, an underground water pollution source is controlled, and a waterproof curtain is built at the boundary of a polluted area. Then an underground water pollution source is removed in a polluted area excavation and ectopic treatment mode, and polluted underground water is collected through foundation pit dewatering in the excavation process and conveyed to wastewater treatment equipment to be treated; the excavated aquifer medium soil is subjected to ex-situ indirect thermal desorption treatment, adsorbed and residual organic pollutants in the soil medium are heated into a gas state to be separated from soil particles, and generated high-temperature waste gas is subjected to activated carbon adsorption treatment after being pretreated. By monitoring underground water around and inside the remediation area, an underground water pollution source is effectively controlled and removed, and the removal rate of soil and underground water pollutants after treatment is close to 100%. The method is thorough in underground water organic pollution site treatment and high in treatment efficiency.

The utility model belongs to the technical field of soil remediation and improvement, and particularly relates to a soil pollution treatment device. According to the technical scheme, the soil pollution treatment device comprises a soil pollution treatment tank body, and the top of the soil pollution treatment tank body is connected with a slurry liquid inlet pipe used for inputting slurry to be treated; a driving motor is mounted at the top of the soil pollution treatment tank body, the output end of the driving motor is connected with a rotating shaft, and a stirring paddle is fixed on the rotating shaft; an oxidant leacheate pipe is arranged on the soil pollution treatment tank body; a heating pipe is mounted in the soil pollution treatment tank body; the top of the soil pollution treatment tank body is connected with a vacuum exhaust pipe, and a conveying belt is installed in the lower portion of the soil pollution treatment tank body. The utility model provides a soil pollution treatment device. Vapor and treated slurry are separated through thermal desorption treatment and oxidation treatment.

The invention discloses a hydrogen trap characteristic parameter determination method based on a genetic algorithm, and relates to the technical field of hydrogen trap characteristic calculation. Placing the sample in a hydrogen filling device for hydrogen filling treatment, wherein the hydrogen concentration in the sample is saturated; transferring the sample into a heating thermal desorption device for hydrogen desorption treatment, collecting overflowed hydrogen through a mass spectrometer to obtain an actually measured TDS curve, and analyzing the category number of hydrogen traps in the material; according to the McNabb and Foster theories, in combination with an Oriani hypothesis, a calculated TDS curve is obtained; establishing an error function between the actually measured TDS curve and the calculated TDS curve; and according to the error function, a genetic algorithm is adopted to invert and solve the concentration and binding energy of various hydrogen traps. The method can accurately predict the concentration of various hydrogen traps in the material and the characteristic parameters of binding energy, and provides technical support for hydrogen embrittlement prevention design, safety evaluation and the like of steel for hydrogen energy storage and transportation equipment.

The invention discloses a thermal desorption multi-layer cylinder rotary kiln reactor for rapid restoration of site pollution, which comprises a rotary cylinder, a plurality of layers of inner cylinders are arranged in the rotary cylinder, the layers of inner cylinders are arranged in a mutually sleeved manner from inside to outside along the axial direction, the diameters of the plurality of layers of inner cylinders are gradually increased from inside to outside, and the diameters of the plurality of layers of inner cylinders are gradually increased from inside to outside. The interior of the rotary barrel is divided into a plurality of annular cavities by the multiple layers of inner barrels, sieve pores are formed in the side walls of the inner barrels, and the sieve pores in the inner barrel on the inner side are larger than the sieve pores in the inner barrel on the outer side; and a side wall cavity heat source input structure is arranged in the rotary cylinder and forms multi-point surrounding type heat source input corresponding to the annular cavity in the rotary cylinder. By arranging the multi-layer rotary cylinder structure and combining the pore size distribution of the screen, the polluted soil is subjected to heat transfer according to particle sizes in the rotary kiln, and compared with a conventional rotary kiln, under the condition that the cylinder length, the cylinder diameter and the cylinder inclination angle are the same, the rotary kiln can improve the complete reaction degree of materials or improve the treatment efficiency by about 50%.