42results about How to "Reduce gas loss" patented technology

The invention discloses a method for producing diesel oil with a low condensation point by catalyst gradation technology. The method comprises the following steps: mixing a diesel oil raw material with hydrogen, orderly passing through at least two hydrogenation reaction zones connected in series, wherein in the material flowing direction, each hydrogenation reaction zone orderly comprises a hydro-refining dewaxing catalyst composite bed layer filled with a mixture of a hydro-refining catalyst and a hydro-upgrading isodewaxing catalyst, and a hydrodewaxing catalyst bed layer; performing separation and fractionation of the reaction effluent from the last hydrogenation reaction zone to obtain the diesel oil product with a low condensation point. The method of the invention reasonably combines and utilizes the temperature increase of the hydro-refining and hydro-upgrading dewaxing process with the temperature decrease of the hydrodewaxing process, improves the diesel oil yield and the cetane value while producing diesel oil with a low condensation point and low sulfur, reduces the hot-spot temperature of the device, prolongs the running period, also reduces the cold hydrogen consumption or the combustion gas loss of a heating furnace, and saves operation cost.

The invention discloses a method for producing hydrogenated diesel oil with a low condensation point by gradation technology. The method comprises the following steps: mixing a diesel oil raw material with hydrogen, orderly passing through at least two hydrogenation reaction zones connected in series, wherein in the material flowing direction, each hydrogenation reaction zone orderly comprises a hydro-refining hydro-upgrading catalyst composite bed layer filled with a mixture of a hydro-refining catalyst and a hydro-upgrading catalyst, and a hydrodewaxing catalyst bed layer; performing separation and fractionation of the reaction effluent from the last hydrogenation reaction zone to obtain the diesel oil product with a low condensation point. The method of the invention reasonably combines and utilizes the temperature decrease of the hydrodewaxing process with the temperature increase of the hydro-upgrading process, improves the diesel oil yield while producing diesel oil with a low condensation point and low sulfur, reduces the hot-spot temperature of the device, prolongs the running period, also reduces the cold hydrogen consumption or the combustion gas loss of a heating furnace, and saves operation cost.

The invention discloses a shale gas content measurement device and a shale gas content measurement method. The measurement device comprises a fixed base, a driving mechanism, a sealed sample crushing cylinder, a crushing combined tool and a seal cover, wherein the driving mechanism is connected to the fixed base; a cylinder body of the seal sample crushing cylinder is connected with the fixed base and is internally provided with a stirring shaft connected with the driving mechanism; the stirring shaft rotates under the driving of the driving mechanism; the crushing combined tool is connected to the stirring shaft of the sealed sample crushing cylinder and is matched for sample rough crushing and fine crushing; the seal cover is arranged at the opening of the seal sample crushing cylinder above the crushing combined tool and is connected with the sealed sample crushing cylinder in a sealed mode. The testing device cam seal, crush and degas the whole rock core or rock sample in an exploration field or a laboratory, so that the sample gas content can be obtained rapidly and accurately.

The invention discloses a method for producing hydrogenated diesel oil with a low freezing point. The method comprises the following steps: mixing a diesel oil raw material with hydrogen, allowing the obtained mixture to sequentially go through at least two serially connected hydrogenation reaction zones, wherein the hydrogenation reaction zones sequentially comprise a pour point reduction modified catalyst composite bed layer filled with a hydrodewaxing catalyst and a hydroupgrading catalyst and a hydrodewaxing catalyst bed layer along a material flow direction; and separating a reaction effluent obtained from the last hydrogenation reaction zone, and fractioning to obtain a diesel oil product with a low freezing point. The method reasonably combines the temperature decrease of the hydrodewaxing process and the temperature rise of the hydroupgrading process, so the diesel oil with a low freezing point is produced, the yield and the cetane value of the diesel oil are improved, the hot spot temperature of a device is reduced, and the running period is prolonged; and the consumption of cold hydrogen or the combustion gas loss of a heating furnace is reduced, so the operating cost is saved.

The invention discloses a method for producing diesel oil with a low condensation point by gradation technology. The method comprises the following steps: mixing a diesel oil raw material with hydrogen, orderly passing through at least two hydrogenation reaction zones connected in series, wherein in the material flowing direction, each hydrogenation reaction zone orderly comprises a hydro-upgrading isodewaxing catalyst bed layer, and a dewaxing catalyst composite bed layer filled with a mixture of a hydro-upgrading isodewaxing catalyst and a hydrodewaxing catalyst; performing separation and fractionation of the reaction effluent from the last hydrogenation reaction zone to obtain the diesel oil product with a low condensation point. The method of the invention reasonably combines and utilizes the temperature increase of the hydro-upgrading dewaxing process with the temperature decrease of the hydrodewaxing process, improves the diesel oil yield and the cetane value while producing diesel oil with a low condensation point and low sulfur, reduces the hot-spot temperature of the device, prolongs the running period, also reduces the cold hydrogen consumption or the combustion gas loss of a heating furnace, and saves operation cost.

The present invention discloses a lubricating oil base oil production method. According to the lubricating oil base oil production method of the present invention, a wax oil raw material and hydrogen gas are mixed and then sequentially pass through at least two hydrogenation reaction zones connected in series, wherein each hydrogenation reaction zone sequentially comprises a composite catalyst bed layer filled with a hydrodewaxing catalyst and a hydrocracking catalyst in a mixed manner and a hydrodewaxing catalyst bed layer according to the material flowing direction, and the reaction effluent obtained from the last hydrogenation reaction zone is subjected to separation and fractionation to obtain the lubricating oil base oil, the white oil and other products. With the method of the present invention, the temperature decrease during the hydrodewaxing process and the temperature increase during the hydrogenation process are subjected to reasonable combination utilization, such that the low freezing point lubricating oil base oil is produced while the viscosity index is increased, the hot spot temperature of the device is reduced, and the operation period is prolonged; and the cold hydrogen consumption or the heating furnace fuel gas loss is reduced, and the operating cost is saved.

The invention discloses a Method for producing hydrogenated diesel oil with a low condensation point by catalyst gradation technology. The method comprises the following steps: mixing diesel oil with hydrogen, orderly passing through at least two hydrogenation reaction zones connected in series, wherein in the material flowing direction, each hydrogenation reaction zone orderly comprises a dewaxing hydro-upgrading catalyst composite bed layer filled with a mixture of a hydro-upgrading isodewaxing catalyst and a hydro-upgrading catalyst, and a hydrodewaxing catalyst bed layer; performing separation and fractionation of the reaction effluent from the last hydrogenation reaction zone to obtain the diesel oil product with a low condensation point. The method of the invention reasonably combines and utilizes the temperature increase of the hydro-refining and hydro-upgrading dewaxing process with the temperature decrease of the hydrodewaxing process, improves the diesel oil yield and the cetane value while producing diesel oil with a low condensation point and low sulfur, reduces the hot-spot temperature of the device, prolongs the running period, also reduces the cold hydrogen consumption or the combustion gas loss of a heating furnace, and saves operation cost.

The invention discloses a production method of high-quality diesel oil with a low condensation point. The method comprises the following steps: mixing a diesel oil raw material with hydrogen, orderly passing through at least two hydrogenation reaction zones connected in series, wherein in the material flowing direction, each hydrogenation reaction zone orderly comprises a hydro-upgrading isodewaxing catalyst bed layer, and a hydro-refining dewaxing catalyst composite bed layer filled with a mixture of a hydrodewaxing catalyst and a hydro-refining catalyst; performing separation and fractionation of the reaction effluent from the last hydrogenation reaction zone to obtain the diesel oil product with a low condensation point. The method of the invention reasonably combines and utilizes the temperature increase of the hydro-refining and hydro-upgrading dewaxing process with the temperature decrease of the hydrodewaxing process, improves the diesel oil yield and the cetane value while producing diesel oil with a low condensation point and low sulfur, reduces the hot-spot temperature of the device, prolongs the running period, also reduces the cold hydrogen consumption or the combustion gas loss of a heating furnace, and saves operation cost.

The invention discloses a self-adaptive wall-climbing robot for a complex environment. The robot comprises a robot body, porous self-adaptive suckers, an air distribution mechanism and a vacuum generation mechanism. The porous self-adaptive suckers are densely distributed on a crawler belt. Each porous self-adaptive sucker comprises a porous flexible adsorption plate, a bottom plate, a differential pressure one-way valve cavity, a rectangular boss, a vacuum adsorption pipe, a fixing plate, a sliding block, a large anti-skid nut, a fixing bolt and a small anti-skid nut. The air distribution mechanism comprises an air distribution groove, and the crawler belt is always fixed by negative pressure in the air distribution groove in the moving process and is tightly attached to the bottom of theair distribution groove. The porous self-adaptive suckers on the crawler belt move along with the crawler belt to dynamically seal the two ends of the air distribution groove, the vacuum generation mechanism is used for vacuumizing to generate negative pressure during adsorption, and an air distribution scheme that the porous self-adaptive suckers on the wall-climbing robot make full contact withan uneven surface and the suckers are distributed to a portion making contact with the ground at a fixed point can be achieved. And a gas loss of the vacuum generator can be effectively reduced.

The invention discloses a method for producing high-quality diesel oil with a low condensation point. The method comprises the following steps: mixing a diesel oil raw material with hydrogen, orderly passing through at least two hydrogenation reaction zones connected in series, wherein in the material flowing direction, each hydrogenation reaction zone orderly comprises a hydro-refining dewaxing composite catalyst bed layer filled with a mixture of a hydrodewaxing catalyst and a hydro-refining catalyst, and a hydro-upgrading isodewaxing catalyst bed layer; performing separation and fractionation of the reaction effluent from the last hydrogenation reaction zone to obtain the diesel oil product with a low condensation point. The method of the invention reasonably combines and utilizes the temperature increase of the hydro-refining and hydro-upgrading dewaxing process with the temperature decrease of the hydrodewaxing process, improves the diesel oil yield and the cetane value while producing diesel oil with a low condensation point and low sulfur, reduces the hot-spot temperature of the device, prolongs the running period, also reduces the cold hydrogen consumption or the combustion gas loss of a heating furnace, and saves operation cost.

The present invention provides a lubricating oil base oil production method. According to the method, a wax oil raw material and hydrogen gas are mixed and then sequentially pass through at least two hydrogenation reaction zones connected in series, wherein each hydrogenation reaction zone sequentially comprises a hydrodewaxing catalyst bed layer and a dewaxing cracking catalyst composite bed layer filled with a hydrodewaxing catalyst and a hydrocracking catalyst in a mixed manner according to the material flowing direction; and the reaction effluent obtained from the last hydrogenation reaction zone is subjected to separation and fractionation to obtain the lubricating oil base oil, the white oil and other products. With the method of the present invention, the temperature decrease during the hydrodewaxing process and the temperature increase during the hydrogenation process are subjected to reasonable combination utilization, such that the low freezing point lubricating oil base oil is produced while the viscosity index is increased, the hot spot temperature of the device is reduced, and the operation period is prolonged; and the cold hydrogen consumption or the heating furnace fuel gas loss is reduced, and the operating cost is saved.

The invention provides an internet-of-things-based drainage valve optimization method. The internet-of-things-based drainage valve optimization method comprises: A1, acquiring operating parameters ofa drainage valve by monitoring an internet of things; A2, analyzing the operating parameters based on a neural network algorithm and extracting an operating mode feature model of the drainage valve; and A3, optimizing the operating mode feature model based on a genetic algorithm to obtain opening time of a valve. With the method provided by the invention, the gas consumption value is reduced.

The invention relates to the technical field of engines, in particular to a system of recycling wasteheat of an aero-engine. The system of recycling the wasteheat of the aero-engine comprises the aero-engine, a thermo-acoustic engine and a heat carrying fluid pipeline. A part of the heat carrying fluid pipeline and a housing of the aero-engine are arranged in a fit manner, and the two ends of theheat carrying fluid pipeline are correspondingly connected to a heat carrying fluid inlet and a heat carrying fluid outlet of the thermo-acoustic engine. The system of recycling the wasteheat of the aero-engine provided by the invention can drive the thermo-acoustic engine to work by mean of heat transferred to the housing by air flow in the aero-engine so as to convert heat energy into mechanicalenergy, so that heat when the aero-engine works is recovered and the energy utilization ratio of the aero-engine is improved, and meanwhile, the gas quantity loss for cooling the housing of the aero-engine is reduced, the cooling problem of the aero-engine is solved effectively, the integral performance of the aero-engine is improved, and the system meets different demands of an aircraft.

According to the low-negative-pressure injection deep hole continuous sampling system and method, a sampling hole is formed in a sampling drill bit and communicated with a hollow rod of a drill rod, an exhaust hole is formed in the rear side wall of a cavity in the sampling drill bit, and exhaust inclined holes are evenly distributed in the outer wall of the sampling drill bit and communicated with the exhaust hole; the matched water braid is of a hollow structure, an air-water pipeline is arranged on the side wall of the matched water braid, and the tail of the matched water braid is connected with the air amplifier. The air amplifier is of a hollow structure and is communicated with the matched water braid through an air inlet, a compressed air inlet nozzle is arranged on the side wall of the air amplifier, the air inlet end of the compressed air inlet nozzle is communicated with the air supply pipeline, and the air outlet end is communicated with the air amplifier; the tail end of the air amplifier is an exhaust and slag discharge port; on the premise of not withdrawing the drill and replacing the drill rod, sampling is continuously carried out at multiple sampling points, and it is guaranteed that coal samples at all the sampling points are not mixed; sampling can be conducted according to the sampling amount requirement, the influence of strong negative pressure airflow disturbance on coal sample gas analysis in the sampling process is reduced, and accurate coal seam sampling is achieved.

The invention discloses a method for producing diesel oil with a low condensation point by catalyst gradation technology. The method comprises the following steps: mixing a diesel oil raw material with hydrogen, orderly passing through at least two hydrogenation reaction zones connected in series, wherein in the material flowing direction, each hydrogenation reaction zone orderly comprises a hydro-refining dewaxing catalyst composite bed layer filled with a mixture of a hydro-refining catalyst and a hydro-upgrading isodewaxing catalyst, and a hydrodewaxing catalyst bed layer; performing separation and fractionation of the reaction effluent from the last hydrogenation reaction zone to obtain the diesel oil product with a low condensation point. The method of the invention reasonably combines and utilizes the temperature increase of the hydro-refining and hydro-upgrading dewaxing process with the temperature decrease of the hydrodewaxing process, improves the diesel oil yield and the cetane value while producing diesel oil with a low condensation point and low sulfur, reduces the hot-spot temperature of the device, prolongs the running period, also reduces the cold hydrogen consumption or the combustion gas loss of a heating furnace, and saves operation cost.

The invention discloses a method for producing diesel oil with a low condensation point by catalyst gradation technology. The method comprises the following steps: mixing a diesel oil raw material with hydrogen, orderly passing through at least two hydrogenation reaction zones connected in series, wherein in the material flowing direction, each hydrogenation reaction zone orderly comprises a hydrodewaxing catalyst bed layer, and a hydro-refining dewaxing catalyst composite bed layer filled with a mixture of a hydro-refining catalyst and a hydro-upgrading isodewaxing catalyst; performing separation and fractionation of the reaction effluent from the last hydrogenation reaction zone to obtain the diesel oil product with a low condensation point. The method of the invention reasonably combines and utilizes the temperature increase of the hydro-refining and hydro-upgrading dewaxing process with the temperature decrease of the hydrodewaxing process, improves the diesel oil yield and the cetane value while producing diesel oil with a low condensation point and low sulfur, reduces the hot-spot temperature of the device, prolongs the running period, also reduces the cold hydrogen consumption or the combustion gas loss of a heating furnace, and saves operation cost.

The present invention discloses a low freezing point diesel fuel production method. According to the low freezing point diesel fuel production method, a diesel fuel raw material and hydrogen gas are mixed and then sequentially pass through at least two hydrogenation reaction zones connected in series, wherein each hydrogenation reaction zone sequentially comprises a hydrodewaxing catalyst bed layer and a composite catalyst bed layer filled with a hydrodewaxing catalyst and a hydro-upgrading isodewaxing catalyst in a mixed manner according to the material flowing direction; and the reaction effluent obtained from the last hydrogenation reaction zone is subjected to separation and fractionation to obtain the low freezing point diesel fuel product. With the method of the present invention, the temperature increase of the hydro-upgrading dewaxing process and the temperature decrease during the hydrodewaxing process are subjected to reasonable combination utilization, such that the low freezing point low-sulfur diesel fuel is produced while the diesel fuel yield and the cetane number are increased, the hot spot temperature of the device is reduced, and the operation period is prolonged; and the cold hydrogen consumption or the heating furnace fuel gas loss is reduced, and the operating cost is further saved.

The invention relates to an intelligent monitoring device for a gas meter mainboard. The intelligent monitoring device comprises an electro-mechanical transformation module, a master control panel, an intelligent monitoring module, a motor valve and a display module, wherein a collected signal output end of the electro-mechanical transformation module is respectively connected with collected signal input ends of the master control module and the intelligent monitoring module through wires; a first signal output end of the master control panel is connected with a first signal input end of the intelligent monitoring module through the wire; a second signal output end of the master control panel is connected with a second signal input end of the motor valve through the wire; a third signal output end of the master control panel is connected with the display module through the wire; a signal output end of the intelligent monitoring module is connected with a first signal input end of the motor valve through the wire. The intelligent monitoring device provided by the invention can be used for monitoring the running state of the gas meter, timely cutting off a fuel gas passage, effectively reducing gas loss phenomena and greatly reducing the loss and production management problems of the gas company.

The present invention discloses a production method for hydrogenation of a low freezing point diesel fuel. According to the method, a diesel fuel raw material and hydrogen gas are mixed and then sequentially pass through at least two hydrogenation reaction zones connected in series, wherein each hydrogenation reaction zone sequentially comprises a hydrodewaxing catalyst bed layer and a composite catalyst bed layer filled with a hydrodewaxing catalyst and a hydro-upgrading catalyst in a mixed manner according to the material flowing direction; and the reaction effluent obtained from the last hydrogenation reaction zone is subjected to separation and fractionation to obtain the low freezing point diesel fuel product. With the method of the present invention, the temperature decrease during the hydrodewaxing process and the temperature increase during the hydro-upgrading process are subjected to reasonable combination utilization, such that the low freezing point low-sulfur diesel fuel is produced while the diesel fuel yield and the cetane number are increased, the hot spot temperature of the device is reduced, and the operation period is prolonged; and the cold hydrogen consumption or the heating furnace fuel gas loss is reduced, and the operating cost is further saved.