49 results about "Coal oil" patented technology

The invention discloses an integrated closed circulation system for an RBCC engine, and solves the problems that a constant-pressure extrusion mode of an existing RBCC engine propellant supply system is not suitable for variable working condition adjustment of an RBCC rocket thrust chamber, and a high-pressure storage tank is huge in structure, large in weight and not beneficial to application and expansion of the system on the day. According to the system, high-temperature oxygen is generated through catalytic decomposition of hydrogen peroxide and acts on the turbine, then the hydrogen peroxide pump and the coal oil pump are driven to work, integrated pressurization, supply and adjustment of propellants can be carried out on the multiple rocket thrust chambers and the ramjet combustion chamber at the same time, and therefore wide-range fuel oil adjustment is met, and a widely-applied electric pump system can be replaced; and the structural envelope and weight are greatly reduced, so that the power requirement of a longer voyage is met.

The invention discloses a low-rank coal composite flotation reagent and a preparation method and application thereof, and belongs to the technical field of coal flotation of mineral processing. The agent specifically comprises a composite collecting agent and a composite foaming agent, and the composite collecting agent comprises kerosene, n-dodecane, oleic acid, dimer acid, sodium stearate, terpilenol, diethyl phthalate, alkylphenol ethoxylates, span-80, trioctyl phosphate and 2-ethylhexanol. The composite foaming agent is prepared from the following components: terpilenol, terpenic oil, sec-octyl alcohol and sodium alpha-olefin sulfonate. Compared with a traditional single flotation reagent combination, the composite flotation reagent has a remarkable effect in fine coal flotation, and particularly when coal with the particle size smaller than 0.5 mm is treated, the flotation efficiency, the clean coal yield and the combustible body recovery rate can be effectively improved. More importantly, the medicament is stable at normal temperature, the layering phenomenon is avoided, the long-term effectiveness is ensured, and the medicament has extremely high industrial application potential.

An in-situ large-area drilling and furnace construction method for coal gasification and co-mining of kerosene and / or coalbed methane is provided, which includes: constructing an injection well to the target coal seam and then constructing a horizontal well to divide the target coal seam into sections of coal; extracting coalbed methane; transforming the horizontal wells on both sides of the coal in the first section of coal into coal gasification production wells, and dividing them into intake and exhaust channels; constructing ventilation boreholes to form a “honeycomb shaped” gasifier, which ignites and gasifies to promote the production of combined gases from combustion; after the combustion of first section of coal is completed, continuing to construct the next section of coal and drill holes between adjacent horizontal wells to achieve continuous coal seam combustion and gasification. The method of the present disclosure can improve combustion efficiency and increase kerosene extraction efficiency.

The invention relates to the technical field of carbon dioxide oil displacement, in particular to a carbon dioxide oil displacement and gas displacement sealing device for a coal-oil-gas symbiotic area. The gas injection assembly is arranged above the base; the storage tank is fixedly arranged at the top of the base, and the gas inlet end of the gas injection assembly communicates with the interior of the storage tank; the conveying pipe is arranged above the base, and the gas outlet end of the gas injection assembly communicates with the interior of the conveying pipe; and the position adjusting assembly is arranged above the base, and the output end of the position adjusting assembly is connected with the conveying pipe. When the device is used, the device is moved to a designated place through the base, the gas injection assembly can pump carbon dioxide in the storage tank into the conveying pipe, the conveying pipe discharges the carbon dioxide into the ground, and oil type gas, methane and coal bed gas can be pumped to the ground. The position adjusting assembly can drive the conveying pipe to move in the vertical direction, the position of the conveying pipe in the vertical direction can be freely changed, the conveying pipe automatically moves upwards again, and carbon dioxide is discharged at a specific accurate position.

This invention relates to the field of coal washing and beneficiation technology, and discloses a method for preparing a nano-flotation reagent for coarse coal slime. The method involves mixing sulfonated fatty acid methyl ester with kerosene and n-octanol to form an oil phase, then further mixing this with an aqueous phase containing a nonionic emulsifier, and adding functionalized nano-silica to obtain a mixed solution. This mixed solution is then sequentially treated by ultrasonic dispersion, high-speed stirring, and micro-electrolysis to generate nano / microbubbles in situ and maintain their uniform distribution, resulting in a nano-microemulsion. This invention can significantly improve the adhesion efficiency and loading capacity of coarse coal surfaces, effectively suppress tailings runoff, and improve the transportation and collection efficiency of coarse coal. It solves the problems of low clean coal yield and tailings runoff caused by the low adsorption efficiency and poor foam stability of traditional flotation reagents for coarse coal.

The invention relates to the field of coal chemical industry, and discloses a preparation method of coal-based rocket kerosene, which comprises the following steps: mixing a coal indirect liquefaction Fischer-Tropsch synthesis fraction and a coal direct liquefaction fraction, carrying out a deep hydrofining reaction, fractionating, and taking fractions with an initial boiling point of 185-205 DEG C and a final boiling point of 245-265 DEG C to obtain the coal-based rocket kerosene, wherein the mass ratio of the indirect coal liquefaction Fischer-Tropsch synthesis fraction to the direct coal liquefaction fraction is (20 to 40): (80 to 60); the initial boiling point of the indirect coal liquefaction Fischer-Tropsch synthesis fraction is 150-170 DEG C, the final boiling point of the indirect coal liquefaction Fischer-Tropsch synthesis fraction is 290-310 DEG C, the initial boiling point of the direct coal liquefaction fraction is 160-180 DEG C, and the final boiling point of the direct coal liquefaction fraction is 300-320 DEG C.

The invention provides a testing method for determining a shale oil rock core plaster ratio. The testing method comprises the following steps: acquiring a rock core for an experiment; calculating the diameter, length and gas permeability of the rock core; performing a nuclear magnetic resonance test to obtain a nuclear magnetic resonance T2 spectrum of the dry rock core, a substrate signal of the dry rock core and a nuclear magnetic resonance T2 spectrum of the saturated kerosene rock core; according to the nuclear magnetic resonance T2 spectrum of the dry rock core, the substrate signal of the dry rock core and the nuclear magnetic resonance T2 spectrum of the saturated kerosene rock core, the semaphore and the mortar ratio of fluid in the grey texture layer are calculated. Errors of experimental results caused by organic matter signals in the dry rock core are avoided, the characteristics of the dry rock core are fully utilized as the basis for dividing argillaceous pores and grey texture layers, and the experimental results are more accurate.

The invention discloses a method for preparing high-density coal-based jet fuel by taking fluorene and benzaldehyde as raw materials. The method comprises the following specific steps: 1, reacting a fluorene compound with benzaldehyde under the catalysis of alkali to generate a compound with a tetracyclic structure; and 2, dissolving the compound with the tetracyclic structure in an alkane solvent, and carrying out hydrogenation in a hydrogenation kettle or a fixed bed under the action of a metal catalyst to generate the high-density coal-based jet fuel. The high-density coal-based jet fuel can be completely prepared from the fluorene compound and benzaldehyde extracted from coal tar components in a high-yield mode through a two-step method, the density of the high-density coal-based jet fuel is larger than 0.90 g / cm < 3 >, and the high-density coal-based jet fuel is an aviation kerosene alkane compound with excellent performance; according to the whole route, the coal base is used as the raw material, the raw material source is wide, the cost is low, industrial production is more facilitated, and high-end and high-value coal products are achieved.

The invention relates to the technical field of coal chemical industry, and discloses aerospace kerosene component oil and a preparation method thereof. The method comprises the following steps: (1) heating coal-based Fischer-Tropsch wax to 60-140 DEG C, conveying the heated coal-based Fischer-Tropsch wax to a reactor loaded with an isomerization catalyst, pressurizing hydrogen to 2.5-10 MPa, injecting the pressurized hydrogen into the reactor, and carrying out hydrocracking; (2) carrying out gas-liquid separation on the hydrocracking product, conveying the separated liquid-phase component into a normal-pressure rectifying tower for normal-pressure rectification, and cutting out an aviation kerosene fraction or an aerospace kerosene fraction from the middle of the tower; (3) heavy components cut out from the bottom of the normal-pressure rectifying tower continue to enter a reduced-pressure rectifying tower to be subjected to reduced-pressure rectifying, and a lubricating oil base oil fraction is cut out from the middle of the tower. The aviation and aerospace kerosene component oil prepared by the method can well meet the requirements of cold regions and high-altitude flight on oil fluidity.

This invention discloses a low-temperature resistant composite flotation reagent for coal preparation and its preparation method, specifically relating to the field of flotation technology. The reagent is formed by emulsification of a composite collector, a composite frother, and an aqueous phase. The composite collector contains kerosene, n-dodecane, oleic acid, dimer acid, surfactant components, and low-temperature stabilizing components. The composite frother contains terpineol, pine oil, sec-octanol, and sodium α-olefin sulfonate, etc. Through compounding and synergistic effects, high-speed shear emulsification, and high-pressure homogenization, the obtained reagent exhibits good dispersibility and stability at -5 to 15°C, and can improve the flotation efficiency, clean coal yield, and combustible gas recovery rate of fine coal slime and high-ash, difficult-to-separate coal slime without heating the coal slurry.

This invention discloses a method for preparing high-density coal-based jet fuel. The specific steps are as follows: First, indene and a phenol-containing raw material react under the catalysis of an acidic catalyst to generate a compound with a tricyclic structure; second, the compound with the tricyclic structure is hydrogenated in a hydrogenation reactor or fixed bed under the action of a metal catalyst to generate high-density coal-based jet fuel. The phenol-containing raw material 2 is one of phenol, o-methylphenol, p-methylphenol, m-methylphenol, phenol oil, or crude phenol. This invention, through a two-step method, can completely achieve the high-yield preparation of high-density coal-based jet fuel from indene and phenol-containing raw materials extracted from high-temperature coal tar components. The fuel has a density greater than 0.90 g / mL and is a high-performance aviation kerosene alkane compound. The entire route uses coal tar components (crude phenol / phenol oil, etc.) as raw materials, making it a route with widely available and low-cost raw materials, more conducive to industrial production.

The invention provides an oil product improving method based on catalytic pyrolysis of oil-rich coal from modified blast furnace slag, and belongs to the technical field of quality improvement of oil-rich kerosene. Aiming at the problems of low coal pyrolysis tar yield, high heavy fraction content and the like in the prior art, the method comprises the following steps: 1) modifying original blast furnace slag through an oxide; 2) mixing the modified blast furnace slag with oil-rich coal in proportion, performing catalytic pyrolysis, and collecting coal tar subjected to catalytic pyrolysis; 3) extracting and analyzing each fraction component in the coal tar; and 4) obtaining the yield and parameter conditions of the light tar. According to the method, CaO is the optimal modified oxide of the blast furnace slag through a single factor analysis method, meanwhile, it is verified that 15.12% of coal tar can be generated through catalytic pyrolysis of the oil-rich coal with the CaO modified blast furnace slag with the content of 5%, the carbolic oil content in the coal tar reaches 97.72%, and the promotion effect on oil product improvement of the oil-rich coal is achieved.

The invention discloses an underground liquid storage tank and a construction method thereof. The underground liquid storage tank is provided with an underground diaphragm wall outer tank wall (1), and a lining tank wall (2), a tank bottom plate (3) and a tank top plate (4) are arranged in an area defined by the underground diaphragm wall outer tank wall. A stand column (5) is arranged between the tank bottom plate and the tank top plate, and the storage tank is provided with a working well (6). The underground diaphragm wall outer tank wall, the lining tank wall, the tank bottom plate, the tank top plate and the stand columns are all made of reinforced concrete, and the working well is made of reinforced concrete or steel. The surfaces, making contact with liquid stored in the inner cavity of the underground liquid storage tank or vapor volatilized by the liquid, of the lining tank wall, the tank bottom plate, the tank top plate, the stand columns and the working well are provided with anti-corrosion and anti-seepage layers (8), and a sealing system is arranged above the tank top plate. The invention discloses a construction method of an underground liquid storage tank. The underground liquid storage tank can be used for storing crude oil and can also be used for storing gasoline, kerosene, diesel oil, liquid chemicals and the like.

The invention belongs to the technical field of oil and gas reservoir development physical simulation, and relates to an experimental device and method for simulating shale fan-shaped well pattern optimization in a high-temperature and high-pressure environment, and the experimental device comprises a high-temperature and high-pressure bin, a heterogeneous semi-cylinder model, a fan-shaped well pattern, a fluid injection assembly, a saturation and pressure monitoring assembly and a temperature control assembly. According to the device, coal oil is pumped into a high-temperature and high-pressure bin through a fluid injection assembly to achieve a high-pressure environment, a fan-shaped well pattern is arranged on a heterogeneous semi-cylinder model, cracks are formed in a horizontal well section, and fluid is injected through a central vertical well section; data are collected in real time through the saturation and pressure monitoring assembly, the high-temperature and high-pressure stratum environment is simulated in combination with the temperature control assembly, and therefore the fan-shaped well pattern spacing, the horizontal section length and the crack number are optimized. According to the invention, the fluid migration rule of the shale reservoir under the complex well pattern structure can be effectively simulated, and an optimization design basis is provided for shale gas development.

The invention discloses a cutin structure-based oil-rich coal oil content evaluation method, and relates to the technical field of mineral resource exploration, and the cutin structure-based oil-rich coal oil content evaluation method mainly comprises the following steps: preparing a sample to be detected into a coal polished section, and screening the coal polished section by using a microscope observation method to obtain an available sample; obtaining cutin structure parameters according to the available sample, wherein the cutin structure parameters comprise a structure integrity index, a fluorescence intensity mean value and a pore area percentage; and obtaining a sample oil content distribution interval according to the cutin structure parameters, and averaging the oil content of data points in the sample oil content distribution interval to obtain the oil content of the sample. By implementing the method for evaluating the oil content of the oil-rich coal based on the cutin structure, provided by the invention, the oil content of the oil-rich coal can be quickly evaluated with low cost, no damage and no pollution.

The present application relates to a kind of lignite oil coupling large coal-fired boiler power generation process system, belong to coal energy technical field.The present application is to solve the problem of low overall economic benefit in the process of lignite dry distillation for increasing the yield of coal gas and tar, the energy consumption of required pressurization and heating makes.The present application includes lignite oil sub-system and lignite boiler power generation subsystem;Lignite oil sub-system uses lignite as raw material to prepare kerosene and coal gas, lignite boiler power generation subsystem uses lignite, semi-coke generated by lignite oil sub-system and limestone as raw material for combustion power generation;Lignite oil sub-system and lignite boiler power generation subsystem produce coupling effect through double-helix pyrolysis furnace, screw feeder, back material valve, combustion chamber, cyclone separator and boiler back material pipe, lignite oil sub-system provides semi-coke for lignite boiler power generation subsystem, and lignite boiler power generation subsystem provides high-temperature circulating ash for lignite oil sub-system.The present application is mainly used for preparing kerosene, coal gas and power generation.

The invention provides a fluidized bed coal tar hydrotreating method, which comprises the following steps: mixing a coal tar raw material with hydrogen, sequentially passing through a first fluidized bed hydrogenation reaction zone and a second fluidized bed hydrogenation reaction zone, filling a hydrogenation catalyst A in the first fluidized bed hydrogenation reaction zone, filling a hydrogenation catalyst B in the second fluidized bed hydrogenation reaction zone, separating the reaction effluent to obtain naphtha, diesel oil and aviation kerosene; wherein the bulk carbon content of the hydrogenation catalyst A is 5-20wt% higher than that of the hydrogenation catalyst B; the average pore size of the hydrogenation catalyst A is 5-15nm higher than that of the hydrogenation catalyst B; the total acid content of the hydrogenation catalyst A is 0.10-0.30 mmol / g lower than the total acid content of the hydrogenation catalyst B. The method can reduce the crushing of the catalyst and ensure the stable long-period operation of the device, and is especially suitable for the hydrotreating process of coal tar with high oxygen content; according to the method, hydrogenation reaction of the coal tar under the condition of high conversion rate can be realized, and meanwhile, the product quality and yield are improved.

The invention belongs to the technical field of oil and gas field development, and discloses a nuclear magnetic resonance-based shale oil energy supplement new mode indoor experiment evaluation method, which comprises the following steps: S1, rock sample pretreatment; s2, vacuumizing and pressurizing the rock sample to saturate heavy water; s3, displacement of saturated heavy water by kerosene; s4, displacing kerosene with in-situ crude oil; s5, simulating depletion type development, and calculating the crude oil recovery rate of the depletion type development rock sample; s6, a chemical agent is injected for temporary plugging; and S7, simulating CO2 injection and nano-agent energy supplement development under different injection pressures and different throughput rounds, and calculating the crude oil recovery rate of the rock sample after energy supplement under different injection pressures and different throughput rounds. According to the indoor evaluation experiment method for the novel energy supplement development mode under chemical agent plugging, nano agent flooding and CO2 huff and puff, the problems of CO2 injection and liquid channeling and the problem that the oil yield is rapidly decreased cycle by cycle in the single CO2 injection huff and puff or gas-water alternate injection stage can be solved, mine field practice is guided, and efficient shale oil development is achieved.

The utility model provides a coal dry distillation power generation and green coal synthesis integrated system. The system comprises a coal dry distillation module, an oxygen-fuel combustion power generation module, a hydrogen and oxygen production module and a green coal oil gas synthesis module. The coal dry distillation module is used for dry distillation of coal and can generate low-temperature dry distillation oil gas, medium-high-temperature coal gas, high-temperature coal tar and semicoke. Hydrogen generated by the coal dry distillation module and the hydrogen and oxygen production module is configured to be conveyed to the green coal oil gas synthesis module, and CO2 generated by the coal dry distillation module and the oxygen-fuel combustion power generation module is configured to be conveyed to the green coal oil gas synthesis module. Low-temperature dry distillation oil gas and semicoke generated by the coal dry distillation module, oxygen generated by the hydrogen and oxygen production module and coal gas generated by the green coal oil gas synthesis module are configured to be conveyed to the oxygen-fuel combustion power generation module, so that power is generated on the basis of oxygen-fuel combustion.

The invention relates to the technical field of oil exploration, and discloses an inter-coal oil-bearing reservoir prediction method and device, a medium and computing equipment. The method comprises the steps that single well curve characteristic analysis is carried out, qualitative analysis is carried out on curves of sound waves, resistivity, porosity and natural potential, and the characteristics of the oil-bearing reservoir are determined; carrying out quantitative analysis on the density and the gamma curve, and carrying out curve fitting; the fitted curve is optimized, and the influence of the coal seam is eliminated; establishing a favorable reservoir indication curve and a sound wave time difference cross plot, carrying out quantitative analysis on the oil-bearing reservoir, and dividing the interval of the oil-bearing reservoir to distinguish the oil-bearing reservoir; well-seismic calibration is carried out, and a coal seam oil-bearing reservoir removal initial model is established based on the favorable reservoir indication curve; and based on the coal seam-removed oil-bearing reservoir initial model, carrying out oil-bearing reservoir prediction, and drawing an oil-bearing reservoir planar graph and an oil-bearing reservoir profile graph. According to the method, the influence of the coal seam is eliminated, the applicability to the oil-containing reservoir between the coal is improved, and the distribution condition of the oil-containing reservoir is conveniently and accurately predicted.

The invention provides a co-hydrotreating system and a co-hydrotreating method for direct coal liquefaction oil and bio-based oil. The system comprises a hydrogenation unit, a first separation unit, a co-hydrogenation treatment device and a second separation unit, the hydrogenation unit comprises a hydrofining device, a hydroisomerization device and a hydrogenation saturation device, and is used for sequentially carrying out hydrofining reaction, hydroisomerization reaction and hydrogenation saturation reaction on the direct coal liquefaction oil and hydrogen under the catalysis of a catalyst to obtain a product system; the first separation unit is used for separating a product system to obtain first naphtha, first aviation kerosene, diesel oil and transformer oil; the co-hydrogenation treatment device is used for carrying out co-hydrogenation reaction on the first naphtha and bio-based oil under the catalysis of a fourth catalyst to obtain an oil-water mixture; and the second separation unit is used for separating the oil-water mixture to obtain second naphtha, gasoline, light aromatic hydrocarbon and second aviation kerosene. By applying the system, the synergistic conversion of the direct coal liquefaction oil product and the bio-based oil can be realized.

The application provides a coupling deep processing system and process for oil shale and high-sodium coal, which can effectively solve the comprehensive utilization problem of oil shale and the problem of high-sodium coal as gasification coal, and can realize efficient utilization of energy. The system comprises a drying and dewatering unit, a dry distillation unit, a deep processing unit, a water-coal-oil slurry preparation unit and a gasification unit; the drying and dewatering unit is used for drying and dewatering oil shale; the dry distillation unit is used for receiving the dried oil shale and performing dry distillation on the oil shale; the deep processing unit is used for separating oil and water from shale oil and processing the shale oil; the water-coal-oil slurry preparation unit is used for receiving high-sodium coal, oil shale semi-coke and oil-containing wastewater and preparing water-coal-oil slurry; the gasification unit is used for performing gasification reaction of the water-coal-oil slurry and a gasification agent; the gasification unit and the dry distillation unit are connected through a synthesis gas output pipe; and the dry distillation unit and the drying and dewatering unit are connected through a coal gas output pipe.

The invention discloses a preparation method of high-density coal-based jet fuel. The method comprises the following specific steps: 1, reacting indene with a phenol-containing raw material under the catalysis of an acid catalyst to generate a compound with a tricyclic structure; and 2, hydrogenating the compound with the tricyclic structure in a hydrogenation kettle or a fixed bed under the action of a metal catalyst to generate the high-density coal-based jet fuel, the phenol-containing raw material 2 is one of phenol, o-methylphenol, p-methylphenol, m-methylphenol, carbolic oil and crude phenol. The high-density coal-based jet fuel can be completely prepared from indene extracted from high-temperature coal tar components and phenol-containing raw materials in a high-yield mode through a two-step method, the density of the high-density coal-based jet fuel is larger than 0.90 g / mL, and the high-density coal-based jet fuel is an aviation kerosene alkane compound excellent in performance; according to the whole route, coal tar components (crude phenol / carbolic oil and the like) are used as raw materials, and the method is wide in raw material source, low in cost and more beneficial to industrial production.

The present application relates to the technical field of carbon dioxide flooding, and discloses a carbon dioxide flooding, gas displacement and storage device for coal-gas symbiotic areas, which comprises a base, a gas injection assembly arranged above the base, a storage tank fixedly arranged on the top of the base, an air inlet end of the gas injection assembly being in communication with the inside of the storage tank, a conveying pipe arranged above the base, an air outlet end of the gas injection assembly being in communication with the inside of the conveying pipe, and a position adjusting assembly arranged above the base, an output end of the position adjusting assembly being connected with the conveying pipe. In use, the device is first moved to a designated position through the base, the gas injection assembly can pump the carbon dioxide in the storage tank into the conveying pipe, the conveying pipe discharges the carbon dioxide into the ground, and oil-type gas, methane and coal-bed gas can all be pumped to the ground. The position adjusting assembly can drive the conveying pipe to move in the vertical direction, the conveying pipe can arbitrarily change its position in the vertical direction, automatically move upward again, and discharge the carbon dioxide at a specific and accurate position.

The present application relates to the technical fields of detecting coal tar, and disclose a device and method for rapidly detecting naphthalene content in coal tar, which comprises a distillation flask, a fractional column, a fractional head, a condenser, a receiver and a base, a support plate is vertically fixed on the top of the base, a fixed rod is fixed on one side of the support plate, the fractional column is fixedly installed on the end of the fixed rod, the distillation flask is arranged at the lower end of the fractional column, the fractional head is arranged at the upper end of the fractional column, the condenser is fixedly arranged on the downward inclined end of the fractional head, a support table is fixed on the other side of the support plate, a weighing device is fixed on the top of the support table, and the receiver is placed on the top of the weighing device. The device and method for rapidly detecting naphthalene content in coal tar adopts the heating mode of a bulb, and the bulb can rotate around the distillation flask, so that the coal tar in the distillation flask is slowly heated, thereby improving the separation quality of the three mixed naphthalene oil, and in addition, the separated three mixed naphthalene oil can be directly weighed, thereby improving the efficiency of content detection.

The invention discloses a migration type heat pump unit with low energy consumption. The migration type heat pump unit comprises an evaporator, a compressor, a condenser, a throttling device, a fan and an energy migration device. The energy migration device comprises an evaporation section, a heat insulation section and a condensation section, a liquid working medium is arranged in the energy migration device, and an evaporator is arranged on the side, close to the condensation section, of the energy migration device. According to the low-energy-consumption migration type heat pump unit, discharged energy is effectively recycled, pollution is avoided, clean, environment-friendly and renewable resources are used for manufacturing hot water, the COP value is high, high-price and non-renewable resources such as coal and oil for traditional hot water manufacturing can be replaced, and the heat pump unit has the beneficial effects that the energy consumption is low; compared with like products, the low-energy-consumption migration type heat pump unit saves more use cost, and the purposes of being high in resource comprehensive utilization rate, saving energy and reducing consumption are achieved.

The invention relates to an automatic vacuumizing system and method for a test bench pump front pipeline, and is mainly used for solving the technical problems that in the prior art, consumed time is long, stability is poor, the automatic control capability is lacked, the vacuumizing speed and program cannot be automatically adjusted according to real-time feedback, and the fluctuation of the vacuum degree is large. The invention relates to an automatic vacuum-pumping system for a test bench pump front pipeline. The automatic vacuum-pumping system comprises a vacuum-pumping assembly, a vacuum overflowing assembly and an observation assembly. The coal oil pump front pipe is connected with an air inlet of a vacuum overflowing tank in the vacuum overflowing assembly through the observation assembly, and an air extraction opening of the vacuum overflowing tank is connected with the vacuumizing assembly. According to the invention, the capacity of the pump front pipeline vacuumizing system in the liquid oxygen kerosene engine test process is optimized, the high-quality vacuum environment of the pump front pipeline is ensured through automatic control, and reliable ignition conditions are provided for the liquid oxygen kerosene engine ground test.

The invention discloses a pulverized coal pyrolysis device and method. The device comprises a kerosene slurry feeding unit, a preheating unit, a pyrolysis-coke generation unit and an oil / gas collecting unit, a raw material outlet of the kerosene slurry feeding unit is connected with an inlet of the preheating unit, an outlet of the preheating unit is connected with the pyrolysis-coke generation unit, a volatile component outlet of the pyrolysis-coke generation unit is connected with the oil / gas collecting unit, and a pyrolysis tar outlet of the oil / gas collecting unit is connected with the kerosene slurry feeding unit; according to the pulverized coal pyrolysis method disclosed by the invention, pyrolysis'oil-dust 'separation is associated with materials in the process of the method, and coal-oil slurry feeding avoids the'oil-dust' separation problem from the source; meanwhile, escape of volatile components in the pyrolysis process is enhanced, and the yield and quality of pyrolysis tar are improved; the pyrolysis method is simple, the catalyst is wide in adaptation range, and large-scale production is easy.

The present invention relates to the field of direct coal liquefaction, and discloses a catalytic coal-oil slurry and its preparation method, method of direct coal liquefaction, and use. The method includes mixing an oil-soluble molybdenum source, a solvent, pulverized coal, and an optional sulfur source to obtain the catalytic coal-oil slurry. When the catalytic coal-oil slurry is used for direct coal liquefaction, it can achieve a higher oil yield and reduce the production cost.

The invention relates to a gravity limit conversion power machine (which does not consume energy power machines (coal, oil, gas, uranium, water, wind, light and chemical) which are known by people at present) (shown in an attached drawing) (1), a transmission (2) and a generator (3). The pull-down effect of the pull-down large gear and the chain on the pull-down small gear is utilized. And the balance weight cabinet is lifted upwards through equal-difference long and short chains on the square ring connecting rod, the gravity point of the balance weight cabinet is transferred on the round wheel, and the purpose of extreme power conversion is achieved through the action of the outer cliff type track and the inner cliff type track. The machine does not use any fossil energy and has no infection, and the diameter of the machine can be several meters or hundreds of meters. The machine can be large or small, one group can be provided, and several groups are provided with one machine. The counter weight can be several tons or thousands of tons. The power can be directly used and can also be used after power generation. And one machine can be arranged in one household or one machine can be arranged in one city.