77 results about "Thermochemistry" patented technology

The present invention relates to a thermochemistry assistant strengthening steam drive method for thermal recovery of horizontal well using oil-soluble compound viscosity reducer and carbon dioxide. The technique scheme is that: Drilling an horizontal well below the heavy oil reservoir layer, injecting periodically oil-soluble compound viscosity reducer, carbon dioxide liquid and steam in slug injection forms to horizontal well, after shutting in well and opening to blow, continuous oil extraction is operated by the inner lower pump in horizontal well. The present invention can reduce base oil viscosity of super heavy oil reservoir in lower or middle deep layers greatly, reduce steam injection pressure greatly, enhance steam hot wave and range, and enhance period exploitation effect. The scene experiment proves that the average period oil-steam ratio reaches to 0.75, average period oil production is 1800t, the room experiment proves that developing thermochemistry assistant strengthening steam drive in the late period of middle deep layer of super heavy oil reservoir, the final oil reservoir recovery can reach about 40%.

The invention relates to a method for using original catalyst oxidization thermal chemical method to product natural gas hydrate, and a relative device, wherein said method is characterized in that: pouring hydrate decompose accelerant into the hydrate storage layer to decompose the natural hydrate; using oxidant to catalyze and oxidize the fuel to heat the heat liquid in the catalyst oxidization burner; then pumping the liquid into storage layer to support the heat needed in the decomposition of natural gas hydrate; then pouring the CO₂ gas generated by burning into hydrate storage layer; and the inventive device comprises: catalyze oxidize burner 14, as one coaxial sleeve reactor, while the tube is the catalyze oxidize burning area and the frame is divided into preheating section and heat exchanging section. The invention can combine the mechanical method and the CO₂ exchange method, to improve the producing speed and confirm the stability of seabed.

The invention relates to a high-capacity combination type solar thermochemistry cascaded heat storage device and solar energy application. The high-capacity combination type solar thermochemistry cascaded heat storage device comprises a solar heat collector, a solid-gas chemical reactor, a refrigerant liquid storage device and a cooling towel. Three heat storage slat absorbing agents are filled inside the solid-gas chemical reactor. Under the same working pressure, desorption equilibrium temperatures of the three heat storage salt absorbing agents decrease gradually in the flowing direction of heat exchanging fluid and the three heat storage salt absorbing agents are distributed in a cascaded mode. Thermochemistry absorption heat storage is utilized, and multiple reaction salts of different temperature zones are adopted so that the defect that in an existing solar energy thermochemistry heat storage device, reactants cannot conduct thermal decomposition reaction at a certain moment due to the fact that the temperature of collected solar heat energy is low is overcome. Therefore, a novel solar energy thermochemistry cascaded heat storage technology can reduce the influences of solar energy time volatility and can be better matched with solar heat energy, and high-efficiency heat storage of the solar heat energy can be realized through the cascaded combination of the heat storage reaction slats of different temperature zones.

The invention provides a frequency divided type solar full-spectrum utilizing system with low concentrating photovoltaic-high concentrating photothermal / thermoelectric coupling. The solar full-spectrum utilizing system comprises a high power frequency divided concentrator based on low concentrating photovoltaic, a photothermal / thermoelectric composite heat collector tube, a photothermal second-grade concentrator and a real-time sunlight tracking system. The high power frequency divided concentrator based on low concentrating photovoltaic comprises spectrum selective transmission glass, a lower concentrating photovoltaic concentrator, a photovoltaic battery and heat dissipating fins. The photothermal / thermoelectric composite heat collector tube comprises a glass outer pipe, a ring type metal inner pipe, a glass inner pipe and a thermoelectric device, wherein the glass outer pipe, the ring type metal inner pipe, the glass inner pipe and the thermoelectric device are coaxially arranged. According to the solar full-spectrum utilizing system, electricity generating can not only be conducted through photovoltaic, thermoelectricity and a heat engine, but also thermochemistry stored energy can be utilized, so that high efficiency utilizing of the solar full spectrum is realized. Furthermore, the solar full-spectrum utilizing system is low in cost, broad in application scope, high in social and economic benefit and wide in market prospect.

The invention discloses a solar thermochemistry energy storage heat absorber and a heat absorbing method of the heat absorber. An energy storage heat absorber body composed of a heat absorbing layer and a reaction layer is placed in a cavity, and an opening of the energy storage heat absorber body is sealed through a quartz glass window and is wrapped with a heat insulation layer. The heat absorbing method comprises the following steps that focused solar radiation is projected to the surface of the heat absorbing layer through the quartz glass window; after the focused solar radiation is absorbed by reaction gas in the heat absorbing layer and the temperature of the reaction gas rises, the reaction gas enters the reaction layer to participate in reactions under the action of a catalyst to store solar energy in reaction products. The reaction products can serve as fuel to be used for power generation of a gas turbine and can be directly used as gas fuel. Reaction gas can be evenly heated by the heat absorbing layer, and the reaction layer can be protected against local overheating through the heat absorbing layer. Because the solar energy is stored in a thermochemistry process, the reaction products can be permanently stored under room temperatures, and the solar energy can be efficiently and stably absorbed and stored. The solar thermochemistry energy storage heat absorber is compact and simple in structure, reaction fluid and the products are convenient to transport, and large-scale high-temperature solar heat utilization requirements can be met.

The invention relates to a method for generating CO by using an indifferent oxide carrier (SiO2, Al2O3, ZrO2, YSZ and the like) supported perovskite (ABO3-delta; delta is in the range from 0 to 1) compound as an active material through two-step thermochemistry cycle decomposition of CO2. The method comprises the following main steps that (1) firstly the active material gives off oxygen at a high temperature; (2) the active material containing lots of oxygen vacancies reacts with CO2 at a relatively low temperature to give off CO. According to the method, the perovskite is used as the active material for carrying out the decomposition reaction of the CO2 for the first time; compared with other active materials, the perovskite active material can give off lots of oxygen at a relatively low temperature (at 1300 DEG C at the speed of 16-25ml/g) and generate substantial amount of CO (20-30ml/g). The method has the advantages that the high-temperature heat generated by solar energy focusing is used as an energy source, and the CO2 is used as a reaction raw material for generating CO, and therefore, the method is clean and pollution-free.

The present invention relates to a thermochemical dehydration process for ultrahenvy oil. Said invention is characterized by that it adopts thermochemical static settlement dehydration and indirect heat-supplying mode using heat transfer oil as thermal carrier, and adopts nodel tubular heat exchange equipment to implement thermochemical dehydration process of ultraheavy oil. In the course of dehydration LH-2 or RS-2 oil-soluble demulsifier with a certain concentration is added in the ultraheavy oil, and the water content of dehydrated and settled raw oil can be up to 3-5% standard.

The invention relates to a system and method for enabling solar concentrating photovoltaic and medium-and low-temperature thermochemistry to jointly generate energy by using spectral frequency division and belongs to the solar full spectrum technical field. According to the technical schemes of the invention, a spectral frequency divider is arranged under a Fresnel lens; the spectral frequency divider divides solar spectra at 1200nm wavelength; sunlight of which the wavelength is smaller than 1200nm is transmitted to the surface of a concentrating photovoltaic battery; sunlight of which the wavelength is larger than 1200nm is transmitted to a medium-and low-temperature thermochemical reaction device and a low-temperature heat exchanger so as to provide heat energy required by an endothermic reaction; the low-temperature heat exchanger and the medium-and low-temperature thermochemical reaction device are communicated with each other through a pipeline so as to form a loop; and therefore, the full-spectrum utilization of solar energy is achieved under a condition that the thermal coupling of the concentrating photovoltaic battery and the thermochemical reaction device is avoided; andthe spectral frequency division technology is adopted, so that the temperature of the concentrating photovoltaic battery can be decreased from the source, and therefore, the normal operation of the photovoltaic battery can be ensured, and high-grade thermal energy of a higher temperature can be obtained to provide energy required by medium-and low-temperature thermochemical reactions.

The invention provides a complementary type distributed energy system integrating internal combustion engine tail gas into the thermochemical process. The system comprises an internal combustion engine power generation subsystem, a thermochemistry waste heat utilization subsystem, an absorption refrigeration subsystem and a low-temperature exhaust waste heat utilization subsystem. According to the system, based on the energy utilization principle of parallel temperature and gradient utilization, exhaust waste heat recovery is conducted through thermochemical reaction, absorption refrigeration, heat supply and the like in sequence, high-temperature exhaust waste heat is utilized scientifically and reasonably in a gradient mode, heat, electric and cold diversified energy product output is achieved, and the energy utilization efficiency and grade of exhaust waste heat are improved greatly.

The invention relates to a heat-recovery-typed secondary thermal chemisorption refrigeration circulatory system based on pressure-switching desorption, and pertains to the technical field of refrigeration and air-conditioning, wherein, a main reactor outlet is connected with an intermediate control valve inlet, an intermediate control valve outlet is connected with an auxiliary reactor inlet, an auxiliary reactor outlet is connected with an auxiliary control valve inlet, an auxiliary control valve outlet is connected with a condenser inlet, a condenser outlet is connected with a throttle valve inlet, a throttle outlet is connected with an evaporator inlet, an evaporator outlet is connected with a main control valve inlet, and a main control valve outlet is connected with a main reactor inlet. The interior of a main reactor is filled with a high-temperature reaction chemosorbent, the interior of an auxiliary reactor is filled with a medium-temperature chemosorbent, and univariate absorption characteristics of chemosorbents with different reaction temperature ranges are utilized for realizing cooling pressure-switching desorption process of high-temperature reaction absorbents. The heat-recovery-typed secondary thermal chemisorption refrigeration circulatory system of the invention can significantly decrease desorption temperature of the chemosorbent in the thermal chemisorption refrigeration circulatory system and expand the utilization scope of waste heat.

The invention relates to the field of all-vanadium redox flow batteries, and specifically discloses an all-vanadium redox flow battery SOC detection method based on thermochemistry measurement. For the requirements on the real-time detection of SOC (State-of-charge) state of positive and negative electrodes in the using process of an all-vanadium redox flow battery, the specific heat capacity anddensity of positive and negative electrode electrolytes, the inner resistances of positive and negative electrodes and the enthalpy changes of positive and negative electrode reactions at different temperatures are measured in an offline manner, energy conservation equations are established for the positive and negative electrodes inside an electric pile by using the first law of thermodynamics, the inlet and outlet electrolyte temperature changes of the positive and negative electrodes of the electric pile are associated with the heat changes of reactions, the inlet and outlet electrolyte temperature changes of the positive and negative electrodes of the electric pile, reaction current and electrolyte flow rate are measured in real time in an online manner, the heat changes of the positive and negative electrode reactions inside a sampling time period are calculated in real time, and the substance concentration change rule of adjacent sampling points is calculated and obtained in combination with the enthalpy change values of the positive and negative electrode reactions at specific reactions obtained in the offline manner, so that real-time detection for SOC is realized.

The invention discloses a direct combustion dispersed heat supplying method for a biomass pyrolysis furnace, which relates to the technical field of biomass thermochemistry. A heat supplying combustion device of the pyrolysis furnace comprises pluralities of combustor groups, all the combustor groups are dispersedly distributed on the upper portion of the pyrolysis furnace along an axial direction, each combustor group is composed of pluralities of small combustor nozzles, and the highest temperature of a combustion area inside the furnace is below 1600 DEG C; fuels for supplying heat to the pyrolysis furnace and oxidizers are separated before entering the pyrolysis furnace and conduct non-premixed combustion inside the furnace; the pyrolysis furnace with a fixed outer casing is horizontally arranged and stirs biomass inside the furnace through the rotation of a stirring shaft with a stirring rod; during operation, the highest temperature inside the combustion area can be adjusted by adjusting the amount of externally supplied fuels and/or inert component content in the oxidizers and/or by adjusting the rotation speed of the stirring shaft with the stirring rod. The direct combustion dispersed heat supplying method is applied to biomass pyrolysis treatment, and meets engineering application requirements of intermediate-temperature rapid pyrolysis of biomass raw materials and of subsequent entrained flow gasification through the technology of 'direct combustion dispersed heat supplying'.

The invention provides a biological chemistry-thermochemistry multi-point crosslinking biomass waste processing method and system. A solid product, a gas product and a liquid product of a sub thermochemistry processing system are applied to a sub biochemical processing system, the heat generated by the sub biochemical processing system is applied to the sub thermochemistry processing system, the multi-point bi-directional interactive connection between the sub thermochemistry processing system and the sub thermochemistry processing system is formed, so that the energy gas yield and stability of the sub biochemical processing system are improved, and the pollution and the energy consumption of the sub thermochemistry processing system are lowered. The invention is suitable for processing biomass wastes with high water content and low water content at the same time, a soil improvement agent, liquid fuel and biology fuel gas are generated, the secondary pollution is low, and the greenhouse gas reduction discharging benefit is obvious. The solid product serves as the soil improvement agent, the biology stability, the humus content and the nitrogen content are high, and storing and transporting are convenient.

The invention relates to a preparation method of a polyvinylidene fluoride copolymer. A polymerization method for polymerization is a novel solution polymerization method. The solution polymerization method is characterized in that an initial monomer is used as a dispersion medium, organic peroxides are used as initiating agents, and ketone and esters are used as molecular weight modifiers; technological polymerization conditions are mild, the process is simple and easy to operate, and the cost is low; the polyvinylidene fluoride copolymer is low in impurity content, good in thermochemistry stability, low in melting point, high in thermal decomposition temperature, wide in processing temperature and easy to operate, has good flexibility and is unlikely to crack.

The present invention provides a power generating system by combining medium-and-low temperature solar energy and fossil fuel with thermochemical process, the system comprising: a material supply device configured to store fossil fuel; a material mixing device configured to mix the fossil fuel with non-reacted reactant; a material metering device configured to control an amount of material fed to a material preheating device in unit time; a material preheating device configured to heat the material; a solar energy absorption and reaction device configured to drive the fossil fuel by using solar thermal energy absorbed to make a decomposition reaction or reforming reaction, through which the solar energy is converted to chemical energy of hydrogen-rich fuel, obtaining solar-energy fuel; a solar energy heat collecting device configured to collect the solar energy with low energy flux density to medium-and-low temperature solar thermal energy with high energy flux density, so as to provide heat to decomposition reaction or reforming reaction; a condenser configured to cool reaction products; a gas-liquid separating device configured to perform gas-liquid separation for the cooled mixture; a fuel bypassing device configured to adjust a proportion of solar-energy fuel for storage to that for generating; a gas storing tank to store solar-energy fuel; a power generating apparatus to burnt the solar-energy fuel to output power. The invention achieves a higher efficiency of usage of solar energy.

The invention discloses a solar supercritical carbon dioxide Brayton circulatory system. The circulatory system includes a solar heat absorber, a turbine unit and a Brayton cycle unit; the solar heatabsorber and the Brayton cycle unit are respectively connected to the turbine unit through pipelines; the circulatory system also includes a storage tank which is in parallel connection or series connection with the pipeline between the solar heat absorber and the turbine unit and used for storing metal carbonates and metal oxides; and in addition, the Brayton cycle unit is provided with a gas storage tank which is used for storing supercritical carbon dioxide. The provided circulatory system couples direct production of supercritical carbon dioxide based on thermochemistry and supercritical carbon dioxide Brayton cycle, so that efficient energy storage and heat exchange can be realized, device efficiency can be enhanced, and costs can be reduced.

A reusable self-heating hair roller includes a fluid holding body containing a supercoolable fluid. The fluid holding body may be implemented in many ways, including as non-permeable, incorruptible, air-tight film, bladder or casing. The supercoolable fluid, such as sodium acetate or equivalent, uses thermochemistry to produce on command an exothermic crystallization process that generates the heat needed to style and or curl the hair. A nucleation initiator initiates a nucleation event that propagates the crystallization to harnesses the latent heat of fusion and create the heat. The nucleation initiator may be situated so that it is generally sequestered or otherwise held in a way where it is prevented from free floating within the supercoolable fluid, yet at the same time remains in full communication with the fluid.

The invention relates to hydrogen preparation by photolysis of water and aims to provide a method for preparing hydrogen by decomposing water through a photo-thermal chemical cycle. The method comprises the following steps: preparing a solution A with zinc nitrate, deionized water, glacial acetic acid and absolute ethyl alcohol; preparing a solution B with butyl titanate and absolute ethyl alcohol, and pouring the solution A into the solution B and stirring into gel; after the gel is dried and ground into fine powder, heating for roasting, and thus obtaining a binary composite metal oxide; after the binary composite metal oxide is irradiated by a light source for reaction, heating and introducing vapor for reaction to generate H2. The method combines photochemistry with thermochemistry and utilizes the characteristic that the titanium and zinc binary composite metal oxide is irradiated by light at normal temperature and pressure to be decomposed into a low-valent metal oxide and oxygen, so that the temperature needed by the first step of the thermochemical cycle is greatly reduced, and the cyclic condition is improved.

The invention discloses a biological thermochemistry method for safety evaluation and screening of cigarette auxiliary material. According to the method, an external macro micro-thermal experiment is adopted, the whole metabolic process of a microexamination object after disposed is monitored in real time through an isothermal thermal activity detector, and heat change in the gathering module collecting process is utilized to calculate relative physicochemical parameters. The method is easy in operation, extremely low in cost, short in experiment period, high in efficiency and reliable in result accuracy. The whole metabolic process can be observed in real time, a new method is created for evaluating cigarette harm reducing effects and screening additions and the method provides an important reference basis for further analysis evaluations in the following steps. The method not only promotes efficiency but also greatly reduces the cost.

The present invention relates to a thermochemical gas sensor using chalcogenide-based nanowires and a method for same, comprising: a porous alumina template comprising a front surface, a rear surface, and side surfaces and provided with a plurality of pores which penetrate the front surface and the rear surface; a seed layer provided on the rear surface of the porous alumina template for covering the plurality of pores and having electric conductivity; a plurality of chalcogenide-based nanowires provided inside the plurality of pores and coming into contact with the seed layer, which is exposed through the plurality of pores; an electrode provided on the front surface of the porous alumina template and coming into contact with the chalcogenide-based nanowires; an electrode wire for electrically connecting with the electrode; and a porous white gold-alumina composite or a porous palladium-alumina composite provided above the electrode for causing a heat-emitting reaction by coming into contact with a gas to be detected, wherein the chalcogenide-based nanowires comprise Bi_xTe_y(1.5≦x≦2.5, 2.4≦y≦3.6), Sb_xTe_y(1.5≦x≦2.5, 2.4≦y≦3.6) or (Bi_1-xSb_x)Te₃(0<x<1). According to the present invention, a variety of gases can be detected through a change in the porous white gold-alumina composite or the porous palladium-alumina composite, and temperature and minute changes in electromotive force can be confirmed by detecting the gases, and thus the present invention can be utilized for evaluating a thermochemistry performance by using gas.

The invention discloses a multi-stage injection-type line focus solar absorption reactor for middle and low temperature solar thermochemistry. The reactor includes a line focus reflective mirror array, variable diameter absorption reaction tubes and an injection pipe. The variable diameter absorption reaction tubes are arranged in a plurality of mirrors among the reflective mirror array; part of the reactant enters the absorption reaction tubes from the inlets on the ends of the reaction tubes, and the remaining reactant is injected into the absorption reaction tubes in a multi-stage way through the injection pipe along the tube; after entrance into the reaction tubes, the reactant is heated by the solar focused by the line focus reflective mirror array, and generates endothermic reaction under the catalyst condition, so as to convert solar energy into chemical energy of the resultant and improve response reactant grade. The invention improves the chemical processes and apparatus, so that the structure reasonably matches the parameters such as specific reaction characteristics and working fluid status in the absorption reaction tubes. The reactor achieves the efficient energy transfer and transformation, improves the overall reaction efficiency and reduces the overall energy consumption.