89results about How to "Reduce the cycle rate" patented technology

Process for producing a copper-containing aqueous solution, in which a copper mass is dissolved in the presence of air in an aqueous leach liquor containing monoethanolamine and an acid, wherein the amount of acid equivalents is between 0.05 and about 0.7 times the equivalents of monoethanolamine, and wherein the rate of copper dissolution into the aqueous leach liquor is greater than about 4.3 grams of copper per liter of leach liquor per hour until a product having at least about 80 grams per liter is obtained.

A gas regulator block can be configured to mount to a barrel of a firearm. A gas regulator can be disposed substantially within the gas regulator block and can be configured to adjustably vary an amount of gas flow through the gas regulator block. A cover configured to cover a portion of the gas regulator block to inhibit inadvertent adjustment of the amount of gas flow and configured to uncover the portion of the gas regulator block to facilitate intentional adjustment of the amount of gas flow. A gas passage can be formed in the gas regulator block in a forward location and the gas port can be configured to communicate gas from the barrel to the gas regulator.

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is at least approximately 1.3 times that of a standard M16 / M4. A piston can be formed on the bolt and can have a plurality of rings that are configured to cooperate with the piston to mitigate gas leakage past the piston. Each of the rings can have a key formed thereon and a gap formed therein such that the gap of one ring is configured to receive at least a portion of the key of another ring. The bolt carrier can have a double cut cam.

An absorber (110) in a gas treatment plant (100) produces a rich solvent (116) that is flashed to produce flashed rich solvent (134D) and recycle gas (132D), wherein the recycle gas (132D) is not mixed with the absorber feed gas (112) as commonly practiced, but mixed with the rich solvent (116). Such configurations exhibit superior rich solvent loading, thereby reducing solvent circulation. Further contemplated gas treatment plants (100)may also include a regenerator (150) in which carbon dioxide from atmospheric flashed vapor (142) of the rich solvent (144) is employed as a stripping gas in a regenerator (150) to strip hydrogen sulfide from the rich solvent (144), and wherein sweet gas (114) is employed to strip the carbon dioxide from the rich solvent (144).

In a cooling system for cooling a heating element mounted in a vehicle, a radiator is located at a position higher than a heat sink, which absorbs heat from the heating element. When the amount of heat generated from the heating element, which is detected by a sensor, is greater than a predetermined first value, a blower is operated. Further, when the detected amount of heat is greater than a predetermined second value that is higher than the predetermined first value, a pump is operated. When the detected amount of heat is equal to or less than the predetermined first value, the pump is stopped and the cooling water is circulated by a principle of heat siphon. Accordingly, power consumption of the pump is reduced. Further, power consumption of the cooling system is reduced or an increase in power consumption of the cooling system is restricted.

A bottom hole assembly is configured with a drill bit section connected to a pulse generation section. The pulse generation section includes a relatively long external housing, the particular housing length being selected for the particular drilling location. The long external housing is positioned closely adjacent to the borehole sidewalls to thereby create a high speed flow course between the external walls of the housing and the borehole sidewalls. The long external housing includes a valve cartridge assembly and optionally a shock sub decoupler. While in operation, the valve cartridge assembly continuously cycles and uses downhole pressure to thereby generate seismic signal pulses that propagate to geophones or other similar sensors on the surface. The amount of bypass allowed through the valve assembly is selectable in combination with the long external housing length and width to achieve the desired pulse characteristics. The bottom hole assembly optionally includes an acoustic baffle to attenuate wave propagation going up the drill string.

The invention relates to a processing method for boiler fly ash, specifically relates to a processing method for circulating fluidized bed boiler fly ash and belongs to solid waste recycling utilization technology field. The method allows the circulating fluidized bed boiler fly ash, especially the circulating fluidized bed boiler desulphurization fly ash to first do surface modification by a regulator, so as to improve the effect of sort in the friction electrification separator, separate the uncombusted charcoal and fly ash in the fly ash and obtain the fly ash with very low charcoal content and the charcoal rich product with very high charcoal content. The sorted high charcoal content charcoal rich product can directly return into the fluidized bed boiler to burn and the same time the cycle multiplying power can be decreased or the product can be used to prepare active carbon and other charcoal products or used as normal fuels; and the sorted low charcoal content fly ash can be used as cement, concrete, brick, ceramsite, filling material and other raw materials.

The invention discloses a multifunctional energy system based on the appropriate conversion of chemical energy of fossil fuel, which comprises a synthetic gas preparation and afterheat recovery subsystem for appropriately converting coal and natural gas into high temperature synthetic gas respectively through a partial gasification and reforming unit, cooling and then conveying the high temperature synthetic gas to a chemical product synthesizing and refining subsystem, and simultaneously conveying the generated high temperature steam to a power generation subsystem; a chemical product synthesizing and refining subsystem for pressurizing and conveying the received high temperature synthetic gas to a chemical product synthesis reactor for synthesizing the chemical product, and then obtaining the refined chemical product through a refining unit; and a power generation subsystem for converting the unconverted synthetic gas in the chemical product synthesizing and refining subsystem and the high temperature steam from the afterheat recovery subsystem into electric energy. According to the invention, the problems that complete gasification of coal and total reforming of natural gas canlead to large irreversible loss, the equipment is large and the cost is high are solved, the efficiency of the system is enhanced and the investment on system equipment is lowered.

The invention provides a gas compressor for preventing excessive reduction of oil circulation during a high speed operation. A cyclone block (70) is configured to include a substantially cylindrical space (75) into which a compressed coolant gas (G) is introduced to separate refrigeration oil (R) from the gas (G). A pressure bypass (76) is formed in the substantially cylindrical space (75) defined by an outer cylindrical unit (71) and an inner cylindrical unit (72) to communicate with a discharge chamber (21) having lower pressure than that of the substantially cylindrical space (75). The pressure bypass (76) includes a pressure valve to open and close the pressure bypass (76) in accordance with the internal pressure of the substantially cylindrical space (75) having the pressure bypass (76). During a high speed operation of a compressor unit (60), the coolant gas (G) including unseparated refrigeration oil (R) is discharged from the pressure bypass (76).

An improved process for the catalytic gasification of a carbonaceous feedstock in a dual fluidized bed reactor for producing synthesis gas is disclosed. The disclosure uses γ-alumina as a catalyst support iand heat carrier in the gasification zone (102). The gasification zone (102) is operated at 700 - 750 °C to prevent substantial conversion of γ-alumina to α-alumina, which would manifest in the enablement of high catalyst loading and high recyclability. The catalyst is an alkali metal, preferably K2CO3, so that conversion proportional to total K2CO3 to solid carbon ratio is achieved with as high K2CO3 loading as 50 wt% on the solid support. The combustion zone (140) is operated at 800° - 840° C, to prevent any conversion of the γ-alumina to a-alumina, so that catalyst recyclability of up to 98% is achieved between two successive cycles.

An improved chemical looping combustion (CLC) process and system includes a hopper containing oxygen carrier particles, e.g., metal oxides, that are gravity fed at a controlled rate of flow from the hopper into (a) a generally vertical downflow reactor where they are mixed with all of the hydrocarbon fuel feed to the system and (b) into one or more standpipes that are in communication with a plurality of staged fluidized reactor beds, the amount of the oxygen carrier particles introduced into the system being stoichiometrically predetermined to produce a syngas mixture of H2 and CO2; or to complete combustion of the fuel to CO2 and water vapor, thereby permitting capture of a majority of the CO2 produced in an essentially pure form.

A reaction mixture for a polymerase chain reaction (PCR) includes water, DNA polymerase, deoxyribonucleoside triphosphates (dNTPs), tris(hydroxymethyl)aminomethane hydrochloride (Tris-HCl), potassium chloride, magnesium chloride, dithiothreitol (DDT), and an additive agent. The reaction mixture is capable of enhancing the sensitivity and specificity of PCR and increasing the yield of correct nucleic acid sequence copies when being used in PCR.

The invention relates to a cumyl hydroperoxide and propylene epoxidation method, which mainly solves the problems of high reaction temperature and high molar ratio of propylene and cumyl hydroperoxide to keep high reaction efficiency in the prior art. The method is as below: introducing the materials of cumyl hydroperoxide and liquid phase propylene into a reaction zone, and contacting the materials with a Ti-silica catalyst to conduct an epoxidation reaction under the conditions of epoxidation reaction temperature of 15-160 DEG C, pressure of 1.0-12.0 MPa and molar ratio of propylene and cumyl hydroperoxide of 2-30, so as to generate epoxypropane, wherein part of the epoxidation reaction products containing epoxypropane recycles to a reaction zone entrance. The technical scheme can well solve the above problems, and can be used in industrial production of epoxypropane from epoxidation of cumyl hydroperoxide and the propylene.

The invention discloses a porous nickel and carbon compound and a preparation method of the porous nickel and carbon compound. A continuous carbon layer coats the surface of porous nickel and micro-pores are formed in the carbon layer; the carbon comprises one or more of functional groups including hydrogen, oxygen, nitrogen and the like; the preparation method of the porous nickel and carbon compound comprises the following steps: putting the porous nickel into a chemical vapor deposition device and introducing a carbon source or a mixture of the carbon source and a nitrogen source and the like at a high temperature; generating the continuous carbon layer on the surface of the porous nickel within certain time. According to the porous nickel and carbon compound, the porous nickel can have a plurality of forms including small grains, blocks or membrane-shaped objects and the like; the nickel and carbon compound can be used as a hydrogenation catalyst in different reactors; compared with pure porous nickel, the porous nickel and carbon compound has the advantages of small density, high mechanical strength, small abrasion in the reactors and controllable hydrogenation degree; the porous nickel and carbon compound can also be used as a multifunctional current collector for 1V to 4V electrochemical energy storage, and has the advantages of electrochemical capacitance higher than that of pure foam nickel and great mechanical strength and is suitable for being continuously coated.

The invention relates to a recirculating prawn aquaculture method in combination with a nitrification-assimilation effect and belongs to the technical field of aquaculture. A culture system used in the method comprises a culture pond, a microfilter, a water circulating pump, a biofilter, an ultraviolet sterilization device and a Roots blower; when the culture system is utilized for culture, browngranulated sugar 40-50% of the bait feeding amount or molasses 50-60% of the bait feeding amount is added into the culture pond every day to promote growth of heterotrophic bacteria, and part of metabolic waste is removed by utilizing the bacterial assimilation effect. According to the method, in the circulating water culture system with nitrification as a water treatment core, a carbon source iscontinuously increased in the culture process, growth of the rhodobacteriaceae bacteria in a culture water body is promoted, the bacterial assimilation effect is strengthened, meanwhile, the nitrification effect of nitrification bacteria is not inhibited, the assimilation effect and the nitrification effect jointly purify the water body, the microbial water treatment efficiency is improved, the load of a water treatment system is reduced, and a culture water environment is improved.

The invention discloses a refrigeration cycle system combining ammonia absorption and injection. The refrigeration cycle system comprises an evaporator, a sub-cooler, a condenser, an absorber, a solution heat exchanger, a low-pressure generator, a rectifier, a fractional condenser, a high-pressure generator, an injector, a liquid reservoir and a solution pump; in the system disclosed by the invention, the generators work under low generation pressure at low heat source temperature, so that the ammonia concentration decreases at the end of the generation, the deflation ratio of the generators is improved, and low solution circulating ratio is obtained; then, condensate ammonia liquor pressurized through the solution pump is heated and vaporized into high-pressure saturated steam as the working steam of the injector; the injector is used for injecting the ammonia steam from the top of a rectifying tower, so that the ammonia steam is condensed in the condenser after the pressure of the rectifying tower is increased to the condensing pressure; the requirements of the generators for the heat source temperature are reduced greatly, and the problem of low working performance of the traditional single-stage ammonia absorption type refrigeration cycle system at low heat source temperature is solved; and the refrigeration cycle system is of great significance in driving ammonia absorption type refrigeration cycle with solar energy.

Gas sweetening solutions are described that are capable of removing hydrogen sulfide from gas streams. These gas sweetening solutions increase the size of produced sulfur particles and thereby improve efficiency of their separation, while simultaneously reducing corrosive effects of the sweetening solutions.The gas sweetening solutions comprise at least one chelating agent, cationic iron and a mixture of nitrite salt and phosphate species.

The invention relates to a method for producing propylene oxide. The method is mainly used for solving the problem of relatively high reaction temperature rise and the problem that a relatively high molar ratio of propylene to cumyl hydroperoxide is needed for keeping relatively high reaction efficiency in the prior art. The method comprises the following steps: enabling raw materials namely cumyl hydroperoxide and a propylene liquid phase to enter a multi-section adiabatic reaction area with at least two sections, and performing contact reaction on the raw materials and a Ti-silicon dioxide catalyst to prepare propylene oxide under the conditions that the epoxidation reaction temperature is 15-160 DEG C, the pressure is 1.0-12.0MPa and a total molar ratio of propylene to cumyl hydroperoxide is 2-30, wherein the raw material namely cumyl hydroperoxide enters each catalyst bed layer of the multi-section adiabatic reaction area in a sectional mode; and an epoxidation reaction product containing propylene oxide, obtained from an outlet of the multi-section adiabatic reaction area, is partially circulated to an inlet of each catalyst bed layer of the multi-section adiabatic reaction area. By adopting such a technical scheme, the problem of relatively high reaction temperature rise and the problem that the relatively high molar ratio of propylene to cumyl hydroperoxide is needed for keeping relatively high reaction efficiency can be relatively well solved; and the method disclosed by the invention can be applied to the industrial production of preparing propylene oxide from cumyl hydroperoxide and propylene by virtue of epoxidation.

The invention relates to a variable-flow relay type circulating water culture method for fishes in the technical field of aquaculture engineering. According to physiological metabolism rules of fishes, the circulation rate is reduced before feeding, the water circulation flow of a system is improved after feeding, discharge of solid particles such as residual feed excrement out of culture ponds isaccelerated, after most of solids are discharged, the circulation rate is returned to a normal level, the water quality is kept constant basically, and healthy growth of the fishes is guaranteed. Themethod contributes to fish ingestion and can strengthen the sewage discharge efficiency of the fishponds and guarantee culture water quality safety; through combination of different specifications ofculture ponds, different specification sizes of fishes can be cultured in a same culture system, the load borne by the culture system is kept in a nearly saturation state, and the operation energy efficiency of the culture system is improved; and through automatic control by various valves, liquid level sensors, variable frequency pumps and other equipment, the problem of damage of water balanceof the system due to circulation capacity change is solved, and the adjustable circulation capacity of the circulating water culture is realized.

The invention provides a rotator compressor. The rotator compressor comprises a crank shaft (1), a lower flange (2), a cylinder (3), a shell (4), and an oil pool (5) arranged at the inner bottom of the shell (4), wherein an oil blocking structure is arranged between the lower flange (2) and the bottom of the shell (4); and the oil blocking structure extends from the central axis position of the crank shaft (1) to the position near the side wall of the shell (4). According to the rotator compressor, the oil blocking structure is arranged between the lower flange and the bottom of the shell, so that the situation that the oil level in the position near the inner wall of the shell rises due to a centrifugal action generated through rotation driving of the crank shaft can be effectively prevented, the situation that the central oil level sinks too much due to the centrifugal action is effectively prevented, the central oil level is prevented from dropping too low, the purpose that the crank shaft can always suck oil from the oil pool is guaranteed, and the technical problem that lubricating, sealing and cooling functions of the compressor are decreased due to the fact that the crank shaft is short and stirs the oil is overcome.

A system and method of controlling the input and output speed of a continuous sheet of stock material is provided. More specifically, the present invention relates to a system and method used to perform an operation on a continuous sheet of stock material in a high speed manufacturing system. The continuous sheet of stock material may subsequently be received by a second system that performs a different operation on the stock material. In one embodiment, the second system forms the stock material into tabs for container end closures. The system includes an infeed accumulation device and an outfeed accumulation device. The infeed and outfeed accumulation devices enable the system to operate at a variable rate and out of phase with a high speed, coil fed manufacturing system to which the system may be removably integrated.

The present invention discloses a fixed bed reactor. The fixed bed reactor comprises a shell, the shell comprises: a straight cylinder (2), a lower sealing head (1) and an upper sealing head (3), wherein the upper sealing head is provided with a reaction gas inlet (4) and a charging port (7), and the lower sealing head is provided with a manhole (11) and a discharging port (14); a lower pipe box (12) which is connected with one end, far away from the straight cylinder, of the lower sealing head and is provided with a hot water inlet connecting pipe (13); an upper tube box (6) which is connected with one end, far away from the straight cylinder, of the upper sealing head and is provided with a steam-water mixture outlet connecting tube (5); a heat exchange tube bundle (8), wherein heat exchange tubes of the heat exchange tube bundle (8) are fixed and communicated with the tube plates of the upper tube box, and the lower tube box, and the diameter of the tube plate of the upper tube box and the diameter of the tube plate of the lower tube box are smaller than the diameter of the shell; a central pipe which is used for collecting and discharging reacted gas; and a catalyst frame. According to the reactor disclosed by the invention, the heat exchange tubes can be checked and plugged without taking out internal parts, and loading and unloading of a catalyst are not hindered; and the large-angle arched heat exchange pipe is small in water circulation resistance, and reaction heat can be quickly removed.

The invention relates to a silencer for reducing the oil circulation rate of a compressor. An outlet of the silencer is arranged under a motor stator coil, a cold medium discharged from the silencer is directly sprayed on the coil, and oil carrying in the cold medium falls back into an oil tank through the filtration by the coil, so the oil circulation rate is decreased. Compared with the prior art, the invention has the advantages of capability of reducing the oil circulation rate and noise of the compressor and the like.