3results about How to "Excellent purification" patented technology

The present application provides a kind of smoke hood purification device, including static part, smoke hood part, equipment control system and power supply;The static part includes electrostatic frame, electric field, fan, electric control box, air valve and sensor assemblyThe smoke hood part includes smoke hood frame, oil throwing disc, fire baffle, alarm device, touch screen;Equipment control system is electrically connected with the high-voltage power supply, fan, air valve, sensor assembly, oil throwing disc, touch screen and alarm device respectively, and the power supply is used to power supply for smoke hood purification device.The present application is safer, more energy-saving, purer, better oil discharge performance, and smaller noise, and the equipment can be operated stably, energy-efficiently and efficiently with low noise.

The present invention provides an exhaust gas purification catalyst for a saddle-type vehicle, which has a simple and low-cost structure with only one catalyst layer, but has excellent purification performance of CO, HC, and NOx and their low-temperature purification performance. The exhaust gas purification catalyst for a saddle-type vehicle arranged in the exhaust gas passage of an internal combustion engine comprises a metal substrate and a single-layer catalyst layer arranged on the metal substrate, wherein the catalyst layer comprises: a first composite catalyst particle, the first composite catalyst particle at least comprising a zirconia-based matrix particle and Rh and CeO2 particles co-supported on the surface of the zirconia-based matrix particle; and a second composite catalyst particle and / or a third composite catalyst particle, the second composite catalyst particle comprising an alumina matrix particle and Pd supported on the surface of the alumina matrix particle, and the third composite catalyst particle at least comprising a ceria-alumina matrix particle and Pd supported on the surface of the ceria-alumina matrix particle.

This invention relates to the field of gas desulfurization technology, specifically to a method for gas desulfurization. The method includes: combining feed gas and desulfurization gas to obtain a mixed feedstock, contacting it with a first oxygen-containing gas for a first oxidation; performing a first condensation and phase separation on the first oxidation product stream; subjecting the condensed gas stream to a second oxidation with a second oxygen-containing gas; performing a second condensation and phase separation on the second oxidation product stream; and combining a portion of the product gas as desulfurization gas with the feed gas to form a mixed feedstock. The first oxidation temperature is at least 5-80°C higher than the second oxidation temperature. This invention, through a two-stage oxidation-condensation phase separation process where the first oxidation temperature is higher than the second oxidation temperature, treats the mixed feedstock containing feed gas and desulfurization gas. This ensures that the process operates under constant pressure throughout the entire process and directly yields high-quality purified natural gas and sulfur, thereby reducing system investment and operating costs, resulting in significant economic and social benefits.