729 results about "Carbon monoxide gas" patented technology

A method, apparatus, and system for a solar-driven chemical plant that may include a solar thermal receiver having a cavity with an inner wall, where the solar thermal receiver is aligned to absorb concentrated solar energy from one or more of 1) an array of heliostats, 2) solar concentrating dishes, and 3) any combination of the two. Some embodiments may include a solar-driven chemical reactor having multiple reactor tubes located inside the cavity of solar thermal receiver, wherein a chemical reaction driven by radiant heat occurs in the multiple reactor tubes, and wherein particles of biomass are gasified in the presence of a steam (H2O) carrier gas and methane (CH4) in a simultaneous steam reformation and steam biomass gasification reaction to produce reaction products that include hydrogen and carbon monoxide gas using the solar thermal energy from the absorbed concentrated solar energy in the multiple reactor tubes.

An electric vehicle is provided with a cell voltage sensor (32) and a cell temperature sensor (31) which are mounted to each of a plurality of cells (21); a gas temperature sensor (33), a carbon monoxide gas sensor (34), and a hydrogen gas sensor (35) which are mounted to a chamber (27); a gas temperature sensor (36), a carbon monoxide gas sensor (37), and a hydrogen gas sensor (38) which are mounted to a gas exhaust passage (28); and an air-conditioning fan (17), a channel-switching damper (19), and a driving motor (42) which lowers a window glass (41). When battery state values detected by the sensors (31) to (38) exceed predetermined thresholds, a battery pack (20) is judged to be abnormal. Then, the channel-switching damper (19) and the air-conditioning fan (17) are started and the window glass (41) is lowered to ventilate the vehicle interior. This speedily exhausts smoke generated from a lithium ion battery.

The self-calibrating carbon monoxide detector and method of the present invention utilize the gas for which the detector was designed to detect as the calibration gas. Specifically, a carbon monoxide gas generator is included in the detector assembly, and is controller to produce a known amount of CO. The sensor response to the quantity of CO generated is monitored, and the calibration thereof adjusted as necessary. The operation of the gas generator is also monitored, and any failures are flagged for user attention. The gas generator specifically suppresses the generation of hydrogen through the materials used in its construction. Temperature effects may also be compensated either through control of gas generation control parameters or compensation of the sensor output in view of the generator temperature effects.

A method of plasma etching comprises using a primary etchant of carbon monoxide gas to etch a transition metal or transition metal compound and to form a volatile by-product of metal carbonyl.

The present invention provides for a method for treating an ischemic disorder in a subject which comprises administering to the subject a pharmaceutically acceptable form of a selectin antagonist in a sufficient amount over a sufficient time period to prevent white blood cell accumulation so as to treat the ischemic disorder in the subject. The invention further provides a method for treating an ischemic disorder in a subject which comprises administering to the subject carbon monoxide gas in a sufficient amount over a sufficient period of time thereby treating the ischemic disorder in the subject. The invention further provides a method for treating an ischemic disorder in a subject which comprises administering to the subject a pharmaceutically acceptable form of inactivated Factor IX in a sufficient amount over a sufficient period of time to inhibit coagulation so as to treat the ischemic disorder in the subject.

An integrated dry gas fuel cell (IDG-FC) is provided. The IDG-FC includes at least one solid oxide fuel cell having an anode, a cathode and an electrolyte membrane disposed between the anode and the cathode. The IDG-FC further includes a conversion bed, where carbon dioxide gas is provided to the conversion bed to convert carbon monoxide gas from the carbon dioxide gas. Solid carbonaceous fuel is provided to the conversion bed to promote the gas conversion. The carbon monoxide is provided as fuel to the anode, and air is supplied to the cathode to provide oxygen for oxidation of the carbon monoxide at the anode to generate electric power. This new process does not require water, and supplies the oxygen required for the oxidation reaction through an ionically selective solid oxide electrolyte membrane.

Processes for generating electricity using a solid oxide fuel cell are disclosed. The processes are controlled by adjusting the hourly spaced velocity of the hydrocarbon feed through the solid oxide fuel cell. Hydrocarbon fuel is transported at an hourly spaced velocity through a pre-reformer having a catalyst. The hydrocarbon fuel is contacted with the catalyst for a residence time and at a temperature such that a catalyzed hydrocarbon fuel is formed. The hourly spaced velocity determines the residence time of the hydrocarbon fuel in the pre-reformer. The resultant catalyzed hydrocarbon fuel contains at least one gas including one or more of hydrogen gas, methane gas, carbon monoxide gas, or combinations thereof The catalyzed hydrocarbon fuel is then contacted with an anode of a solid oxide fuel cell for a residence time to produce electricity.

A homogeneous marker is formed, possibly by the adsorption of trace amounts of an ambient material such as carbon monoxide gas, at a surface of a deposited material when the plasma in momentarily interrupted during plasma enhanced chemical vapor deposition or other deposition processes involving the presence of a plasma. When the deposited material is etched, the resulting crystal dislocations or adsorbed gas is detected as a marker by optical emission spectroscopy techniques. The accuracy of an end point determination of the etching process can be increased by providing a sequence of such markers within the bulk or volume of the deposited material. The markers, being merely an interface such as a slight crystal dislocation in otherwise homogeneous material, do not affect the electrical, chemical or optical properties of the remainder of the predetermined deposited material and thus the homogeneity of the deposited material is not significantly affected.

A system for controlling a flow of a gas stream into a plurality of combustion chambers of an engine is provided. The system comprises a fuel reformer module configured to provide the flow of the gas stream containing hydrogen gas and carbon monoxide gas, a cooler module positioned downstream of the fuel reformer module with respect to the flow of the gas stream. The cooler module is configured to control a temperature of the gas stream. A flow control assembly is positioned downstream of the cooler module and upstream of the plurality of combustion chambers with respect to the flow of the gas stream. The flow control assembly is configured to supply a first effluent stream to a pre-chamber of the plurality of combustion chambers. The flow control assembly also supplies a second effluent stream to a main chamber of the plurality of combustion chambers.

The invention belongs to the field of gas sensors and relates to a novel tin dioxide gas sensitive material, a gas sensitive element adopting the novel tin dioxide gas sensitive material and a preparation method of the gas sensitive element. The tin oxide gas sensitive material consists of the following substances in percentage by mass: 88 to 94 percent of tin dioxide, 1 to 5 percent of antimony trioxide, 0.5 to 5 percent of noble metal, 0.5 to 4 percent of metallic oxides and 0.5 to 4 percent of silicon dioxide. A carbon monoxide gas sensitive element adopting the tin dioxide gas sensitive material is structurally characterized in that a bottom layer is a heating body, a gas sensitive layer made of the tin dioxide gas sensitive material is covered on the heating body, the gas sensitive layer is connected with a lead wire, and a ceramic molecular sieve is covered on the gas sensitive layer. The carbon monoxide gas sensitive element adopting the tin dioxide gas sensitive material has the advantages that the sensitivity is high, the response is fast, the measuring range is wide, the size is small, the service life is long, and the cost is low.

In a fuel processor based on autothermal cyclic reforming process, the fuel processor having a reformer, the reformer having two reactors with integrated heat exchangers, the two reactors cycling between a reforming step and a regeneration step, a method of generating hydrogen gas includes receiving a mixture of fuel and steam in the reformer reactor operating in a reforming step to produce hydrogen-rich reformate gas. The fuel is delivered from a fuel supply and the steam is generated by a heat recovery steam generator (HRSG). The reformate gas is fed to a shift reactor to reduce the concentration of carbon monoxide (CO) gas present in the reformate gas. Product gas generated by the shift reactor is received in a condenser to recover heat from the product gas. In one embodiment output gas stream from the condenser is supplied to a CO oxidizer to further reduce the CO concentration. The output gas stream from the CO oxidizer is supplied to an anode of a fuel cell, the fuel cell including a cathode for receiving ambient air to initiate an electrochemical reaction with the gas stream received by the anode. In another embodiment the output gas stream from the condenser is supplied to a Pressure Swing Adsorber (PSA). The output gas is high-purity hydrogen which can be utilized for industrial hydrogen or hydrogen vehicle refueling applications.

Provided are a method of etching a magnetic material which enables a current flowing via a sidewall substance to be suppressed to a greater extent, and the like.

A spin tunneling magnetoresistive film 110, which comprises a first magnetic film 111, a tunnel film 112 and a second magnetic film 113, is formed on a substrate 101, and on the top surface of the spin tunneling magnetoresistive film 110 a resist film 102 having a desired shape is formed. The magnetic films 111, 113 are each an alloy film of a rare earth metal-transition metal. The spin tunneling magnetoresistive film 110 is plasma etched by using a mixed gas of carbon monoxide gas and ammonia gas. A sidewall substance 103 adhering to a side surface of the spin tunneling magnetoresistive film 110 is oxidized or nitrided by performing plasma etching by use of oxygen gas or nitrogen gas.

The present invention provides an integrated engine system; said integrated engine system includes an air-compression means, an air-buffer-system, a power-management-unit, and at least two cold-expansion-chambers; wherein each of said at least two cold-expansion-chamber includes a spark-ignition means, a fuel-supplying means, a cold-air-injection means, and a reenergize-air-injection means; each cold-expansion-chamber operates in a Mackay Cold-Expansion Cycle, which includes a first-intake-process, a hot-combustion-process, a fuel-cooling-process, a second-intake-process, a cold-expansion-process, and an active-exhaust-process; wherein the fuel-cooling-process may be disabled according to the operation condition.

The air-buffer-system buffers a cooled high-boost-air for said cold-air-injection means and a heated high-boost-air for said reenergize-air-injection means; said power-management-unit includes sensor means and computation circuits to drive said fuel-supplying means, said cold-air-injection means, said reenergize-air-injection, and said spark-ignition means in order to maximize the energy efficiency of the Mackay Cold-Expansion Cycle, such that a cold-expansion-medium produces power in a controlled-temperature oxygen-rich condition; wherein the average medium temperature is reduced by 30%-80% to block heat-loss during the second-intake-process, and all the carbon-monoxide-gas of said cold-expansion-medium is spontaneously reacted with an excessive oxygen-gas during the cold-expansion-process, thereby fully releasing the energy of the supplied fuel by an accelerated conversion of carbon-dioxide-gas before the cold-expansion-medium is expelled out of the associated cold-expansion-chamber; wherein, the average temperature of said cold-expansion-medium is regulated within the range of 400-1100 degree Celsius by the power-management-unit, in order to efficiently produce power at a slowly-decreasing expansion pressure with the least heat-loss.

Furthermore said air-buffer-system recovers the thermal energy from a heat-transfer-catalytic-converter, which utilizes the thermal energy of the expelled cold-expansion-medium to heat up a high-boost-air for the second-intake-process; thereby the energy efficiency is increased in a heavy load operation by reducing the workload on the air-compression means, and the temperature of the expelled cold-expansion-medium is maintained at an operable temperature of the catalytic-conversion means in a light load operation without comprising the energy efficiency.

The present invention relates to a long afterglow luminous material zinc phosphate. Its preparation method includes the following steps: mixing the carbonates, oxides, phosphates, nitrates, acetaets and sulfates of the above-mentioned elements in the representation formula as raw material to obtain their mixture, grinding said mixture and flux and uniformly mixing them; selecting air, nitrogen gas, carbon, carbon monoxide gas, hydrogen gas or nitrogen-hydrogen mixed gas, presintering at 200-600 deg.C for 2-6 hr., cooling to room temp., secondary grinding and uniformly mixing them, sintering at 500-1100 deg.C for 4-10 hr. so as to obtain said invented product.

The invention relates to a technology for removing organic sulfur at a low or normal temperature to prepare high-purity carbonic oxide gas. The method consists of gasifying the coke with carbon monoxide or carbon dioxide to prepare the raw gases including 10 % -99 % CO, 0.1 %-90 % CO2, 0.001 %-2 % O2, 50-9000ppm COS, 10-10000ppm H2S, through gas storage holder, after pressurization and pyrogenation, entering purification tower filled with puripreservatives of A and B to remove hazardous materials including nitrogen oxide, hydrogen arsenide, hydrogen phosphide, hydrogen chloride, hydrogen nitrile, oxides of sulfur and sulfureted hydrogen, entering tower for removing organic sulfur filled with sulfur carbonyl hydrolyst, hydrolyzing 85%-95% of sulfur carbonyl for conversion into sulfureted hydrogen, at 20-150 DEG C, with a pressure of 0.1-10 MP, in which the refined raw gases can be used by productions of fine chemical industry including downstream acetate, dimethyl formamide,dimethyl ether, toluene diisocyanate or methyl diphenylene diisocyanate. The technology converts 85 %-95 % of sulfur carbonyl into sulfureted hydrogen, can adopt routine wet desulfurization to replace polyethylene glycol dimethyl ether desulfuration,can carry out cycle utilization of carbon dioxide and sulfur carbonyl of decarburized desorption gases of polyethylene glycol dimethyl ether, and can carry out zero discharge of poison material of sulfur carbonyl, which is good for environmental conservation.

The invention discloses a catalyst for the synthesis of diethyl oxalate employing carbon monoxide gas-phase catalytic coupling and the catalyst adopts metal palladium as active component, alpha-Al2O3 as carrier and transition metal copper as promoter; wherein, the content of metal palladium is 0.1-5.0% of the carrier and the content of transition metal copper is 0.05-3.0%. The catalyst shows higher reactivity and higher time space yield of dimethyl oxalate in the reaction that carbon monoxide and ethyl nitrite are used to synthesize dimethyl oxalate. The invention also discloses a preparation method of the catalyst.

The invention relates to a preparation method of a p-n type nano CuO/alpha-Fe2O3 composite semiconductor material, and the material is applied to the field of gas sensors. Pure alpha-Fe2O3 is prepared by using a chemical precipitation method; and the nano CuO/alpha-Fe2O3 composite semiconductor material is further prepared by using a deposition-precipitation method. The CuO/alpha-Fe2O3 composite semiconductor gas sensitive material provided by the invention is simple in preparation technique, low in equipment requirement and low in cost; according to the prepared gas sensitive material, along with the increase of the CuO content, Cu atoms gradually enter alpha-Fe2O3 crystal phases, and the particle sizes of special grains range from 10nm to 20nm. By utilizing the prepared material, effective detection on hydrogen sulfide at room temperature is realized, and the material can rapidly respond to carbon monoxide at both 50 DEG C and 100 DEG C, so that the material has large application prospects.

In a plasma etching method of plasma-etching a sample which has a first magnetic film, a second magnetic film disposed above the first magnetic film, a metal oxide film disposed between the first magnetic film and the second magnetic film, a second metal film disposed over the second magnetic film and forming an upper electrode, and a first metal film disposed below the first magnetic film and forming a lower electrode, the plasma etching method includes the steps of: a first process for etching the first magnetic film, the metal oxide film, and the second magnetic film by using carbon monoxide gas; and a second process for etching the sample by using mixed gas of hydrogen gas and inactive gas after the first process. In this case, the first metal film is a film containing therein tantalum.

The invention discloses a method that is used to prepare superfine carbonyl nickel powder by the carbonyl nickel thermal decomposition. The method is that the carbonyl nickel and the carbon monoxide gas are mixed admission the decomposer to mix with the carbon monoxide main heat source gas whose preheating temperature is from two hundred and forty centigrade degree to three hundred twenty centigrade degree to make the carbonyl nickel decompose to from superfine carbonyl nickel powder whose granularity is from twenty nanometer to ten millimeter. The pressure of the decomposer is from 0.02MPa to 0.2MPa in the whole decomposition process. The invention avoids the complicated operation of separating the mixed gas after the decomposition, simplifies the preparation technology, reduces the cost of the production, and greatly reduces the produce of the wall built up.

The invention discloses a method for simultaneously preparing pure hydrogen and pure carbon monoxide by gasification without desorbed gas circulation. The crude synthetic gas prepared by the gasification unit is divided into two parts, one part is used for preparing pure carbon monoxide, and the other part is preparing pure hydrogen. The process of preparing pure carbon monoxide is divided into two parts: one part is used for preparing pure carbon monoxide with the crude synthetic gas prepared by gasification by a heat recovery unit, a low temperature methanol washing I unit, and a cryogenic separation unit; and the other part is used for preparing pure carbon monoxide by the hydrogen rich gas from the outlet of the cold box of the cryogenic separation unit sending into a PSA-CO unit. The feedstock of preparing hydrogen is divided into two parts: one part is the converted gas which is purified by a conversion unit and a low temperature methanol washing II unit with the crude synthetic gas prepared by gasification and contains carbon monoxide -1% (mol), and the other part is the hydrogen rich gas from a resurgent TSA device of the cryogenic separation unit, and the two parts of the gas are mixed and sent into the PSA-H2 unit to prepare pure hydrogen. The method has high recovery rates of carbon monoxide and hydrogen, has no desorbed gas circulation and no resurgent gas introduced by environment, has small investment and low energy consumption, and can adjust product gas scale of hydrogen and carbon monoxide flexibly.

The invention relates to a method for producing high-purity metal chromium by using a carbon reduction method. The method comprises the following steps of: uniformly mixing chromic oxide powder and carbon black powder, adding deionized water or alcohol to form a wet mixed material, carrying out press forming, and drying, thereby obtaining a mixed material block; putting the mixed material block in a vacuum furnace, and enabling chromic oxide to be reduced by carbon black under high-temperature vacuum conditions, thereby obtaining crude chromium; introducing gaseous carbon monoxide, and carrying out heat preservation for 3-8 hours at the temperature of 1,300-1,500 DEG C; introducing gaseous carbon dioxide, and carrying out heat preservation for 3-8 hours at the temperature of 800-1,000 DEG C; and cooling down, and discharging, thereby obtaining a high-purity metal chromium block. According to the method, a gas-solid reduction manner is adopted to remove residual raw materials and non-metallic impurities, so that the production cost is reduced, and the reduction time is shortened; and the produced high-purity metal chromium has the purity of 99.96-99.98%, the oxygen content less than 0.03%, the sulfur content less than 0.01% and the carbon content less than 0.01%, thereby meeting the standards of the high-purity metal chromium.

A method comprising contacting a carbon and hydrogen-containing solid fuel and a metal-based catalyst in the presence of oxygen to produce hydrogen gas and carbon monoxide gas, wherein the contacting occurs at a temperature sufficiently high to prevent char formation in an amount capable of stopping production of the hydrogen gas and the carbon monoxide gas is provided. In one embodiment, the metal-based catalyst comprises a rhodium-cerium catalyst. Embodiments further include a system for producing syngas. The systems and methods described herein provide shorter residence time and high selectivity for hydrogen and carbon monoxide.

The invention relates to an inspecting and alarming device for poisonous gas in automobile, comprising gate circuit of delay switch for inspecting if the time when automobile is in idle speed and motion state achieves the setting value. When the time achieves the setting value the signal is emitted and the inspecting circuit is opened. CO sensor is set in the inspecting circuit to collect the concentration signal of CO and transform the signal into voltage signal, which is amplified subsequently. When amplified voltage signal achieves the setting value alarm is started while three signals are outputted. One signal output is used to control car window to open; another signal output is used to control engine to close and the residual signal output is used to open anti-theft alarming device. By adopting the method of opening inspection circuit automatically, the device prolong the using time of sensor greatly while the problem that in the original technology only alarm can be started and the source of poisonous gas can not be cut is conquered. The safety is increased. It is provided with simple structure, strong practicability. It is widely applied in various automobiles.

The present invention provides a gas sensor element having physical, electrical and chemical properties capable of detecting methane and carbon monoxide selectively with 1 intergrated filtering, catalyzing sensor by improving gas selectivity of the semiconductor gas sensor. The present invention relates to a gas sensor element, which has a carbon monoxide sensor layer with an ability to function as a catalyst film that blocks carbon monoxide, which impedes detection of methane, and has a layer-built structure where the surface of a methane sensor is covered with the carbon monoxide gas sensor which can be obtained by a gas-phase method.

The invention provides a tin oxide nanomaterial and a preparation method thereof. One-dimensional tin oxide nanomaterial with high crystallization degree and good appearance is successfully prepared by performing solvothermal synthesis on tin chloride and alkali serving as raw materials in solution of ethanol, wherein the diameter of the one-dimensional tin oxide nanomaterial is 50 to 300nm and the length is 1 to 8 mu m. Compared with the conventional method for preparing the one-dimensional tin oxide nanomaterial, the method adopted by the invention has the advantages of good appearance of the product, high crystallization degree of crystals, low industrialization cost, simple operation and high product yield. The prepared tin oxide nanomaterial has high gas sensitivity to carbon monoxide gas and is a good gas-sensitive material.