189 results about "Wood gas generator" patented technology

A low or no pollution engine is provided for delivering power for vehicles or other power applications. The engine has an air inlet which collects air from a surrounding environment. At least a portion of the nitrogen in the air is removed. The remaining gas is primarily oxygen, which is then routed to a gas generator. The gas generator has inputs for the oxygen and a hydrocarbon fuel. The fuel and oxygen are combusted within the gas generator, forming water and carbon dioxide. The combustion products are then expanded through a power generating device, such as a turbine or piston expander to deliver output power for operation of a vehicle or other power uses. The combustion products are then passed through a condenser where the steam is condensed and the carbon dioxide is collected or discharged. A portion of the water is routed back to the gas generator. The carbon dioxide is compressed and delivered to a terrestrial formation from which return of the CO2 into the atmosphere is inhibited.

A low or no pollution power generation system is provided. The system has an air separator to collect oxygen. A gas generator is provided with inputs for the oxygen and a hydrocarbon fuel. The fuel and oxygen are combusted within the gas generator, forming water and carbon dioxide. Water or other diluents are also delivered into the gas generator to control temperature of the combustion products. The combustion products are then expanded through at least one turbine or other expander to deliver output power. The combustion products are then passed through a separator where the steam is condensed. A portion of the water is discharged and the remainder is routed back to the gas generator as diluent. The carbon dioxide can be conditioned for sequestration. The system can be optimized by adding multiple expanders, reheaters and water diluent preheaters, and by preheating air for an ion transfer membrane oxygen separation.

A gas generating composition having an improved thermal stability of a fuel is obtained.A gas generating compostion comprising a gas generating agent containing a non-sodium azide compound fuel and an oxidizing agent, and an adsorbent. Since substances accelerating decomposition of a fuel, such as radicals generating by decomposition of the fuel are adsorbed and kept on the adsorbent, further decomposition of the fuel is inhabited, so that the thermal stability is increased.

A downhole steam generation apparatus and method of use are provided. The apparatus may include an injection section, a combustion section, and an evaporation section. The injection section may include a housing, injector elements, and injector plate. The combustion section may include a liner having channels disposed therethrough. The evaporation section may include conduits in fluid communication with the channels and the combustion chamber, and a nozzle operable to inject a fluid from the channels to the combustion chamber in droplet form. A method of use may include supplying fuel, oxidant, and fluid to the apparatus; combusting fuel and oxidant in a chamber while flowing the fluid through a plurality of channels disposed through a liner, thereby heating the fluid and cooling the liner; and injecting droplets of the heated fluid into the chamber and evaporating the droplets by combustion of the fuel and the oxidant to produce steam.

A reducing gas generator generates reducing gas including ammonia. The generator includes a solid reductant and a heat-generating portion. The solid reductant is formed in a columnar shape. A cross-sectional surface of the solid reductant has a constant shape and is perpendicular to a central axis of the solid reductant. The heat-generating portion includes a heat-generating surface opposed to a lower surface of the solid reductant in a vertical direction thereof and in contact with an entire region of the lower surface, and a heating element that heats the heat-generating surface when energized, so that the solid reductant is heated and decomposed to generate the reducing gas.

The invention provides a solid gas generator and a preparation method thereof. The solid gas generator comprises 12 to 23% of a polyether adhesive, 1.2 to 3.6% of a curing agent, 50 to 80% of an oxidizing agent, 0 to 5% of a plasticizer, 0 to 30% of a cooling agent, 0 to 5% of a combustion conditioning agent and 0 to 2% of other additives, wherein the polyether adhesive is one or a composition of more than one selected from the group consisting of ethylene oxide tetrahydrofuran copolyether and propylene oxide tetrahydrofuran copolyether, the curing agent is one or a composition of more than one selected from the group consisting of toluene diisocyanate, isophorone diisocyanate and multifunctional aliphatic diisocyanate, and the plasticizer is one or a composition of more than one selected from the group consisting of dioctyl sebacate, acetyl triethyl citrate and triethyl glycerin tricarbonate. The solid gas generator provided by the invention has a negative pressure exponent of 0 to - 0.30 and provides a power source for attitude control and orbit control power systems of light-weight kinetic kill vehicles (KKV).

A process and gas generator is disclosed for generating by dry distillation of solids and gasification of solids, a fuel gas substantially free of condensable dry distillation volatiles which would interfere with the intended use of the gas, e.g. for powering an internal combustion engine.

To achieve this, solids beds in distinct dry distillation and gasification zones are maintained under conditions favouring thermal cracking of condensable (tar) volatiles in the hot regions of both zones. For optimal control of these conditions these zones are physically separated by internals within a single reactor vessel and optionally by performing part of the dry distillation (pyrolysis) in a separate reactor vessel, in which case pyrolysis volatiles are fed in counter-current to the dry distillation bed, withdrawn from the top thereof and fed into and through the embers bed of the gasification zone. Thermal cracking of pyrolysis volatiles is prolonged and intensified by the manner in which these volatiles are conducted in intimate contact through the embers bed of the gasification zone in co-current therewith. The embers bed is guided along a progressively constricting pathway, which controls the rate of travel of and the period of residence of the solids bed in the process and generator.

A gas generator for an air bag which enables a gas generating agent to be completely burned in a desired period of time, and shows sufficient operating characteristics is provided. In a gas generator for an air bag, wherein igniting unit to be actuated when an impact sensor detects an impact, solid bodies of gas generating agent ignited by the igniting unit and burned to generate a combustion gas, and filter unit for cooling the combustion gas and scavenging combustion residues are accommodated in a housing having gas discharge ports. The ratio (A/At) of the total surface area A of the solid bodies of gas generating agent to the total opening area At of the gas discharge ports is controlled to be larger than 300.

The invention provides a semiconductor bridge, an igniter, and a gas generator each of which satisfies a high-speed responsiveness required of, for example, an automotive side inflator. The semiconductor bridge includes a bridge part heated by being supplied with a current. The bridge part is disposed on a substrate. The bridge part includes a first layer and an ignition bridge layer. The first layer is formed on the substrate and has insulating properties. The ignition bridge layer serves as a second layer disposed on the first layer. The width of the bridge part at the first layer and the width of the bridge part at the second layer are substantially equal to each other. A space is provided around the bridge part. With this structure, the diffusion of current and heat into the substrate can be restricted to the minimum level, and the ignition time can be quickened as an ignition characteristic. Each of the igniter and the gas generator includes the semiconductor bridge.

A method for generating gasses in a borehole for use in the recovery of petroleum products. The method utilizes a multiple chamber gas generator system that includes a plurality of gas generators each having an elongate combustion chamber. The multiple chamber gas generator system is positioned in the borehole, and the operation of each of the plurality of gas generators is controlled to selectively turn each of the gas generators on or off, to regulate the volume of gasses being generated in response to changes in conditions within the borehole.

The invention relates to a preparation method of sulfide mineral collector. The method comprises the following steps: sodium sulfide and phosphoric acid are weighed according to the mol ratio of 2 to 3:3 to 6 and added into a gas generator; generated gas is collected and charged into a high-pressure reactor charged with 10 to 13 C of fatty alcohol, thorium oxide catalyst or strongly acid cation resin; the mol ratio of the alcohol to gas is kept to be 1 to 2:1.2 to 2.5; the reaction is performed for 6 to 8 h under the condition that the pressure is 12 to 15 MPa and the temperature is 300 to 450 DEG C to obtain liquid mixture; distillate is collected by distillation under normal pressure at 180 to 300 DEG C according to different carbon numbers, and after the refracting index is detected to be qualified, transparent, colorless and adhesive liquid substance with peculiar odor is obtained, which is the sulfide mineral collector. By adopting the sulfide mineral collector, sulphide ore can be efficiently recovered without active agent, the overall recovery of the sulphide ore reaches larger than 89 percent, and the production cost is reduced.

A gas generator and process for converting a fuel into an oxygen-depleted gas and/or hydrogen-enriched gas. The gas generator, which may be used in any process requiring oxygen-depleted gas and/or hydrogen-enriched gas, is preferably used for generating protection gas or reducing gas for start up, shut down or emergency shut down of a SOFC or SOEC.

The invention relates to a gas suction type engine cold start system. The hidden danger of use safety existing in a flammable material guiding fuel ignition combustion preheating cold start structureand a gaseous fuel combustion preheating cold start structure used in an existing engine are eliminated. The cold start system comprises a gas generator, a gas distribution valve and at least one first fuel injector opening in the inner wall of a combustion chamber and located at the front end of the combustion chamber. The gas generator comprises a gas generating device, a cooling device and a filter, wherein the gas generating device, the cooling device and the filter are connected in sequence. The gas generating device comprises a fuel cavity and a generator igniter, the fuel cavity is provided with solid fuel, and the generator igniter is used for igniting the solid fuel. An inlet of the gas distribution valve is connected with an outlet of the filter, the gas distribution valve is provided with at least one outlet corresponding to the first fuel injectors, and the outlets of the gas distribution valve are connected with the first fuel injectors correspondingly.

A high total impulse solid cool gas micro propulsion unit includes a gas chamber (1); the gas chamber (1) is a cylindrical housing with an opening at one end of the cylindrical housing; nozzles of all the micro cool gas propulsion devices (10) are arranged on the center of an end surface of the gas chamber (1) and side walls of the gas chamber (1) respectively; a gas chamber end cover (2) seals the opening end of the gas chamber (1); a temperature sensor (5), a pressure sensor (6) and a cool gas generator (7) are fixed in the gas chamber (1); the pressure sensor (6) and the temperature sensor (5) can acquire pressure parameters and temperature parameters in real time and send the parameter values to a control drive module (3); the control drive module (3) drives the cool gas generator (7) to generate gas to be injected into the gas chamber (1) according to the received pressure parameter values and the received temperature parameter values; and the control drive module (3) drives and controls the work pulse width of the micro cool gas propulsion devices (10). The high total impulse solid cool gas micro propulsion unit can improve the total impulse of the propulsion module, can improve the whole sealing performance, and can achieve multi-degree of freedom control.

The invention discloses a gas generating agent for a gas generator and a manufacturing method thereof, wherein the gas generating agent comprises the following components by the mass percentage: 15%-30% of a bis(tetrazole) potassium salt; 50%-80% of modified ammonium nitrate; 0%-15% of a performance regulator; and 0%-15% of a bonding and slag forming agent. The gas generating agent is prepared by weighing the components according to the proportion and through dry granulation and water-soluble granulation process; the bis(tetrazole) potassium salt is adopted to cooperate with modified ammonium nitrate, the dry or spray granulation process is used, the medicament granulating requirements can be met, and the granulating efficiency is improved. The gas generating agent can be ignited to burn under heat released from igniting gunpowder, ignition is quick, combustion can be smoothly carried out, gas is produced, the use requirements of inflatable airbags are met, the gas generation amount is large, the gas generation speed is fast, ignition is easy, low-temperature ignition performance is excellent, and thermal stability and chemical stability are good. The gas generating agent cannot be liquified to flow during self combustion.

The invention relates to industrial briquette for molten iron production and gas generator and a preparation method thereof. The preparation method comprises the following steps: a. preparation of composite bonding agent: preparing solution of 0.5-5.0 percent with carboxymethyl cellulose and hydroxypropyl methylcellulose or hydroxyethylmethyl cellulose or ethyl cellulose, wherein the carboxymethyl cellulose accounts for 0.3-3 percent by weight percentage, the hydroxypropyl methylcellulose or the hydroxyethylmethyl cellulose or the ethyl cellulose accounts for 0.2-2 percent by weight percentage; b. preparation of coal powder: preparing the coal powder with the particle diameter below 5mm through crushing and screening; c. mixing of the composite bonding agent and the coal powder: mixing well and pressing the mixture through a roller briquetting machine to obtain the briquette with a certain size. The briquette preparation method is simple, the briquette has high strength and good thermal stability, the production cost is reasonable, and the raw materials are available from a variety of sources.

The invention relates to a gas generating agent composition, a method for preparing the same and a gas generator with the gas generation agent composition. The gas generating agent composition comprises, by weight, 40%-60% of guanidine nitrate, 25%-40% of alkali copper nitrate, 1%-20% of strontium nitrate, 1%-10% of ammonium perchlorate, 5.5%-10% of strontium titanate and 0.6%-10% of talc powder.The gas generating agent composition, the method and the gas generator have the advantages that the strontium titanate and the talc powder are jointly used as shape keeping agents, synergistic effectscan be realized by the strontium titanate and the talc powder, accordingly, pre-combustion shapes of tablets can be effectively kept after the tablets are combusted, and gas bags can be prevented from being burnt due to melting and splashing of the combusted tablets; the strontium nitrate is used as an auxiliary oxidizing agent, the usage amount of the alkali copper nitrate is reduced, and accordingly molten copper residues can be reduced; the ammonium perchlorate is used as an ignition performance regulator, accordingly, the low-temperature ignition performance of the gas generating agent composition can be obviously improved, the combustion speeds can be increased, and the gas generating agent composition mainly can be used for gas generators for supplementary restraint systems of automobiles.