5results about How to "Reduce CO content" patented technology

This application proposes an energy-saving method for enhanced smelting of iron-based minerals. The method includes introducing a first reducing agent, fuel, and oxygen-enriched gas into a jet melting zone to melt the added iron-based minerals and flux. The molten slag undergoes partial pre-reduction. Weakly reducing flue gas is extracted and subjected to waste heat recovery and purification treatment to obtain flue gas and dust, with the dust returned to the jet melting zone. The molten slag enters the jet reduction zone, where a second reducing agent is added, and fuel and oxygen-enriched gas are submerged and injected to perform initial reduction, producing molten iron, iron-containing slag, and strongly reducing flue gas. The strongly reducing flue gas is treated to obtain CO gas and dust containing valence metals. The CO gas is pressurized and then introduced into the jet melting zone. This method can effectively process iron-containing minerals and low-sulfur iron-containing slag, and features efficient iron reduction and efficient energy recycling.

This utility model discloses a burner and a gas stove. The burner includes a flame distributor, which includes a flame distributor body. A high-intensity flame ejector and a middle-ring flame ejector are disposed on the lower side of the flame distributor body. A high-intensity flame outlet channel and a middle-ring flame outlet channel located outside the high-intensity flame outlet channel are disposed on the upper side of the flame distributor body. The outlet end of the high-intensity flame ejector is connected to the high-intensity flame outlet channel, and the outlet end of the middle-ring flame ejector is connected to the middle-ring flame outlet channel. The central axis of the high-intensity flame ejector is offset from the central axis of the high-intensity flame outlet channel by a distance L1, where L1 > 0 mm. The inner burner cap includes an inner burner cap body. A high-intensity flame hole is opened on the upper side of the inner burner cap body, and a middle-ring flame hole is opened on the periphery of the inner burner cap body. A high-intensity flame gas chamber and a middle-ring gas chamber located outside the high-intensity flame gas chamber are opened on the lower part of the inner burner cap body. The high-intensity flame gas chamber is connected to the high-intensity flame hole, and the middle-ring gas chamber is connected to the middle-ring flame hole.

The application discloses a kind of catalysts for microwave-driven methanol-water reforming hydrogen production.The catalyst is composite catalyst obtained by CuO / ZnO composite oxide active component being supported on the surface of microwave absorption component, and the microwave absorption component is carbon nanotube or mixture of carbon nanotube and graphite;The mass of microwave absorption component accounts for 10-40wt.% of the mass of the entire catalyst;It is prepared by impregnation loading method.The application uses carbon with appropriate graphitization degree and specific surface area as carrier and as microwave absorption material at the same time, and loading copper-zinc oxide shows excellent wave-absorbing performance and methanol / water reforming reaction performance, and the preparation process is simple, when applied to microwave-driven methanol / water reforming hydrogen production, methanol can be converted to nearly 100% under the condition of using lower molar ratio of methanol / water raw material, and the H2 content in reforming gas product is about 70mol.%, and the CO content is less than 1mol.%.

This utility model discloses a flame distributor and a burner. The flame distributor includes a flame distributor body, a frying fire ejector and an outer ring fire ejector disposed on the lower side of the flame distributor body, a frying fire exhaust channel and an outer ring fire exhaust channel located outside the frying fire exhaust channel on the upper side of the flame distributor body, the exhaust end of the frying fire ejector communicating with the frying fire exhaust channel, the exhaust end of the outer ring fire ejector communicating with the outer ring fire exhaust channel, and the central axis of the frying fire ejector being offset from the central axis of the frying fire exhaust channel by a distance L1, where L1 > 0 mm. This utility model proposes a flame distributor and a burner that achieves high uniformity of air-fuel mixture, thereby improving the primary air coefficient, increasing combustion efficiency, and reducing the CO content in the flue gas produced by combustion.

The invention provides a noble metal catalyst and a manufacturing method and application thereof, the noble metal catalyst comprises a Pt-In-Ga / Al2O3 catalyst, the Pt-In-Ga / Al2O3 catalyst comprises an Al2O3 carrier and Pt-In2O3-Ga2O3 active components loaded on the Al2O3 carrier, and the total mass of the Pt-In2O3-Ga2O3 active components accounts for 5-50% of the total mass of the catalyst; according to the present invention, under the high temperature reaction condition, the catalyst still has the high methanol conversion rate and the high hydrogen production rate at the high space velocity, the CO selectivity is low, the CO content in the product is low, the methanol conversion rate, the CO content in the reformed gas, the hydrogen production rate and other properties are excellent under the long operation time working condition, and the long-term stability of the catalyst in use is improved.