197results about How to "Large emissions" patented technology

The power plant combusts a hydrocarbon fuel with oxygen to produce high temperature high pressure products of combustion. These products of combustion are routed through an expander to generate power. The products of combustion are substantially free of oxides of nitrogen because the oxidizer is oxygen rather than air. To achieve fast starting, oxygen, fuel and water diluent are preferably stored in quantities sufficient to allow the power plant to operate from these stored consumables. The fuel can be a gaseous or liquid fuel. The oxygen is preferably stored as liquid and routed through a vaporizer before combustion in a gas generator along with the hydrocarbon fuel. In one embodiment, the vaporizer gasifies the oxygen by absorption of heat from air before the air is routed into a separate heat engine, such as a gas turbine. The gas turbine thus operates on cooled air and has its power output increased.

A system and method to control engine valve timing to during the start of an internal combustion engine. Electromechanical valves are controlled in a manner to reduce engine vibration and hydrocarbon emissions during the start of an internal combustion engine. The method controls valves without an explicit four-stroke engine cycle during a start.

Si-doped porous GaN is fabricated by UV-enhanced Pt-assisted electrochemical etching and together with a low-temperature grown buffer layer are utilized as the template for InGaN growth. The porous network in GaN shows nanostructures formed on the surface. Subsequent growth of InGaN shows that it is relaxed on these nanostructures as the area on which the growth takes place is very small. The strain relaxation favors higher indium incorporation. Besides, this porous network creates a relatively rough surface of GaN to modify the surface energy which can enhance the nucleation of impinging indium atoms thereby increasing indium incorporation. It shifts the luminescence from 445 nm for a conventionally grown InGaN structure to 575 nm and enhances the intensity by more than two-fold for the growth technique in the present invention under the same growth conditions. There is also a spectral broadening of the output extending from 480 nm to 720 nm.

A method is provided for adhering a polyurethane-based sealant or adhesive to a substrate. The method comprises: i) applying an aqueous primer solution onto a substrate, the primer solution comprising water, an aminotitanate compound, and preferably an epoxysilane compound having at least one epoxy group and at least two alkoxy groups; ii) applying a polyurethane adhesive or sealant to the primer-treated substrate; and iii) forming a reaction product of the primer and the polyurethane. Also provided are a substrate having a layer of a polyurethane adhesive or sealant, and a stabilized aqueous primer solution containing an epoxysilane compound and an aminotitanate compound.

The invention discloses a method and a device for extracting lithium, which is used for preparing lithium carbonate, from a lapidolite ore by a chloridizing roasting method. The method comprises the following steps of: firstly, mixing the lapidolite ore, calcium chloride and sodium hydroxide with a compound bonding agent for pellet fabrication; secondly, performing chloridizing roasting in a square-frame shaped track type roasting furnace; thirdly, leaching out soot dust by using solution containing sodium carbonate and potassium carbonate to ensure that potassium, sodium, rubidium and cesium enter the solution and convert the lithium into lithium carbonate; fourthly, filtering the mixture to obtain a lithium carbonate solid, and circularly using the filtrated mother liquor to leach out the soot dust; fifthly, when an alkali metal salt is close to be saturated, indirectly heating the filtrated mother liquor by using the residual heat of the gas in the roasting furnace to evaporate part of water; sixthly, passing CO2 into the filtrated mother liquor to perform carbonation; and seventhly, performing cooling crystallization to separate out a mixed salt of the sodium carbonate and the potassium carbonate, returning part of the mixed salt which is used as an auxiliary material mixed and roasted with lapidolite for cyclic utilization, using another part of the mixed salt as a carbonate reagent needed in dissolution, and using the rest part of the mixed salt as byproducts of the sodium carbonate and the potassium carbonate. The method has the advantages of high lithium recovery rate, good material comprehensive utilization, large equipment productivity, high production efficiency, small water consumption in the process and less wastewater discharge.

The invention discloses a coal ash and attapulgite compound SCR denitration catalyst and a preparation method thereof. Coal ash and attapulgite compound are used as catalyst carriers for carrying the compound material of manganese oxide. The preparation method comprises the following steps: mixing the coal ash with the attapulgite, making the mixture into coal ash and attapulgite compound catalyst carrier by scoring, molding, drying and burning, using the isopyknic immersion method to carry the compound carrier on the catalyst precursor, drying and burning so as to acquire the finished product. In the invention, the coal ash and the attapulgite cheaply obtained are used as the catalyst carriers, so the cost of the catalyst and the environmental loading of the catalyst are reduced, the mouldability and the heat stability are better, and the low-temperature activity of the catalyst is better because of the loading of manganese active component.

The invention belongs to the field of edible fungus cultivation and discloses a method for three-dimensionally cultivating white mushroom by a wall soil-covered cultivation process. The method comprises the following steps: building a pergola, producing fungus bags, preparing composite nutrient soil, ripping the bags and making a wall, and is characterized in that: white mushroom bags with hyphae are arrayed and vertically piled in the pergola, and are connected by the composite nutrient soil and the prepared nutrient soil so as to form rows of stable mushroom walls; and the method realizes the frugal three-dimensional cultivation of the white mushroom and effectively solves the problem that a cultivation material loses water. The wall soil-covered cultivation process of the invention creates a small climatic ecological environment for the white mushroom, can increase discharge per unit area, improve land utilization rate, achieve the effect of preserving moisture and increase the yield by 30 percent, breaks a new way for high-yield cultivation of the white mushroom without increasing cost and consuming energy, and can be popularized and applied in vast rural areas.

The invention provides an oxygen-enriched combustion circulating fluidized bed poly-generation system. The oxygen-enriched combustion circulating fluidized bed poly-generation system comprises a circulating fluidized bed combustion furnace and a circulating fluidized bed gasification furnace, wherein the circulating fluidized bed combustion furnace is connected with a separator I, the separator I is connected with a flue at the tail and a two-way material control device, the two-way material control device is connected with the circulating fluidized bed combustion furnace and the circulating fluidized bed gasification furnace respectively, the circulating fluidized bed gasification furnace is connected with the circulating fluidized bed combustion furnace by a return feeder I, the circulating fluidized bed gasification furnace is connected with a ceramic dust collector and a coal gas purification system by a separator II, the flue at the tail is connected with a flue gas distribution valve by a glue gas dust-removal, desulfurization and denitration device, and an outlet of the flue gas distribution valve is divided into three paths. The invention also provides an oxygen-enriched combustion circulating fluidized bed poly-generation process. The oxygen-enriched combustion circulating fluidized bed poly-generation system has high fuel utilization rate, high coal gas yield, good tar quality, small pollutant discharge and low recycling cost, and fuel and flue gas at the tail can be utilized to the maximum extent.

A method for the reduction of mercury emissions from an industrial plant that utilizes a cement or minerals kiln that has a high level of mercury emissions during specific operating conditions. The invention reduces a large spike in mercury emissions typically seen in cement kiln systems when the in-line raw mill is shut-down and all preheater gases are vented to the stack directly. The invention diverts the preheater gases to a cooling device that functions as an adsorption reactor to provide mercury absorption during periods when the raw mill is not in operation.

The invention discloses a titanium modified SAPO-34 molecular sieve and a preparation method and application thereof. An aluminum source and a phosphorous source are evenly mixed to form a mixed solution containing active aluminium phosphate; under the stirring state, a silicon source and template agent are added and evenly mixed; and then, titanium resource aqueous solution is added to prepare the modified SAPO-34 molecular sieve. The anhydrous chemical expression of the modified SAPO-34 molecular sieve is as follows according to the molar ratio of oxide: (0.02-0.3) TiO2. (0.8-1.15) Al2O3. (0.9-1.2) P2O5. (0.3-0.8) SiO2. The titanium modified SAPO-34 molecular sieve of the invention serves as a catalyst, is particularly suitable for the reaction of preparing low-carbon olefin by using oxygen containing raw materials, and has better catalytic activity and low-carbon olefin selectivity.

This invention relates to processes and systems for converting fresh food waste into nutrient rich hydrolysates and particulate compositions. The invention also relates to the hydrolysates and compositions useful, for example, as fertilizers, feedstock or other nutrient supplements.

Systems and methods are provided for recycling internal combustion engine feedgas exhaust emissions during cold-start conditions. By adjusting a restriction valve provided in an exhaust passage upstream of a catalytic converter, an amount of engine exhaust flowing through the catalytic converter prior to the catalytic converter reaching its operational temperature may be reduced.

A negative electrode material for a lithium ion battery containing a composite material, the composite material including silicon-containing particles, graphitic carbon material particles, and a carbonaceous carbon material, in which the composite material has a ratio (A/B) of an area (A) of a peak near 100 eV derived from metal Si to an area (B) of a peak near 103 eV derived from silicon oxide, as measured by XPS, of not less than 0.10 and not more than 2.30. Also disclosed is a paste including the negative electrode material, as well as a negative electrode for a lithium ion battery including a formed body of the paste and a lithium ion battery including the negative electrode.

Disclosed is a luminous flux control member (3) comprising: a lid section (8) positioned, via an air layer, over one or two or more light-emitting elements (2) positioned on top of a substrate (4), and formed so as to intersect with the optical axis of the light-emitting elements (2); and side wall sections (6) that extend from the outer edge of the lid section (8) towards the substrate (4) side. The inner surface (10) of the lid section (8) is a concave surface with the center section thereof positioned closer to the light-emitting elements (2) than the outer peripheral section, and is covered by a transparent reflective film (13). The transparent reflective film (13) reflects some of the light from the light-emitting elements (2) towards the side wall sections (6) and allows the remaining light from the light-emitting elements (2) to pass through.

The invention provides a purification method for HFCS (high fructose corn syrup) in a fructose production process. According to the purification method, the HFCS is obtained after cane juice is subjected to neutralization-hydrolysis in a medicinal anhydrous crystalline fructose production process adopting sugarcane as a raw material, the HFCS is decolorized with activated carbon, subjected to ion exchange twice and then separated through chromatography, a fructose rich liquid is obtained, the fructose rich liquid enters a nanofiltration membrane system, a high-purity fructose dialysate and a high fructose corn concentrated solution are filtered out respectively, the high-purity fructose dialysate is used for producing 99.9% crystalline fructose, and the high fructose corn concentrated solution is applied to beverage-grade high fructose corn. According to the purification method, devices and technological parameters of all working procedures are comprehensively optimized and reasonably matched to meet industrial production requirements, equipment input and production cost are greatly reduced, the one-time yield of industrially produced crystalline fructose products is up to 50%, the technical content of fructose production is increased, and the problem about the situation of heavy dependence on import of high-quality medicinal fructose is solved.

The invention relates to a high-activity crystal seed for concrete production and a preparation method thereof. The crystal seed is prepared by microwave strengthened calcination of the following components in percentage by weight: 70-90 percent of waste ceramic powder, 10-30 percent of pregrinded carbide slag powder and 2-5 percent of modified additive. The preparation method comprises the steps of: taking the components and mixing and grinding according to the proportion, and adding the modified additive in the mixing and grinding process; mixing and grinding until the Brinell specific surface area is 350-400m<2>/kg, homogenizing and placing into an electric heating furnace; and after heating to 800-1,000 DEG C, immediately transferring to a microwave oven with power 600-800W, heating for 90-120 seconds by microwaves and then grinding to 400-450m<2>/kg by adopting vibration grinding. The crystal seed can rapidly promote early hydration of a cement and mineral mixture, obvious improves the early strength of concrete, has good transitive ductility of later strength, no adverse effect on durability and obvious technical, economic and social environmental protection benefit and resource and energy saving.

The present invention relates to a LED light source comprising at least one layer of light emitting material (3), in particular organic light emitting material, sandwiched between two electrode layers (2, 4). At least one of the electrode layers (2, 4) is structured to form a pattern of electrode segments (5), each electrode segment (5) being in electrical contact with at least three of its nearest neighbor electrode segments (5) via direct electrical connections (6), which are designed to act as electrical fuses between the electrode segments (5). The invention allows the design of a large area LED light source having a homogeneous light density without the risk of failure of larger light emitting areas.

The invention relates to application of a household garbage incineration fly ash composite admixture in a cement stabilized macadam mixture, and belongs to the technical field of crossing of environmental engineering and highway engineering. According to the invention, the household garbage incineration fly ash is used as a stable material; the cement/incineration fly ash stabilized macadam mixture is mainly prepared by blending domestic waste incineration fly ash with an active mixed material and an excitant to form a composite admixture and then forming a composite cementing system togetherwith cement to stabilize graded macadam mineral aggregate; and the cement/incineration fly ash stabilized macadam mixture can be used in highway pavement base layers and subbase layers. According to the invention, component complementation and activity excitation effects in the composite admixture are utilized; the potential gelatinization activity of the incineration fly ash is released to the greatest extent to provide a high-activity cementing effect; meanwhile, heavy metal components contained in the incineration fly ash are stably solidified through the solidification effect of the composite cementing system, so that the cement/incineration fly ash stabilized macadam mixture with good performance is prepared, the recycling and harmless disposal target of the household garbage incineration fly ash is achieved, the use amount of cementing materials is reduced for highway engineering, and the engineering cost is reduced.

Process for the synthesis of ammonia from natural gas comprising conversion of a charge of desulphurized natural gas and steam, with oxygen-enriched air or oxygen, into a synthesis gas, and treatment of the synthesis gas with shift reaction and decarbonation, wherein a part of the CO2-depleted synthesis gas, obtained after decarbonation, is separated and used as fuel fraction for one or more furnaces of the conversion section, and the remaining part of the gas is used to produce ammonia.

The invention discloses a method for deep adsorption dephosphorization through ferric oxide hydrate-carrying attapulgite. The method comprises (1) preparing a ferric oxide hydrate-carrying attapulgite adsorbent with particle diameters of 2 to 6 mm through attapulgite purification, modification and granulation, and (2) filling an adsorption device with the adsorbent particles, making phosphorus-containing wastewater flow through a dephosphorization device, adjusting and controlling inlet and outlet water amounts to ensure standing time so that the adsorbent fully contacts with the phosphorus-containing wastewater and phosphorus is adsorbed and fixed to the surface of the adsorbent, and when the adsorbing capacity is saturated, carrying out soaking in a sodium hydroxide solution so that the adsorbent is regenerated. The adsorption synthesis process is simple and has strong operability. The adsorption device is simple and easy and realizes wastewater self-flowing treatment. The treated product water has a phosphorus concentration less than 0.1ppm. Under phosphorus removal total amount quantification, the wastewater discharge capability is increased. The adsorbent can be regenerated and recycled so that requirements of environmental protection are satisfied and a treatment cost is effectively reduced.