93results about How to "No cooling required" patented technology

The invention discloses a process for co-producing synthetic natural gas and food-grade carbon dioxide by using calcium carbide furnace gas. The process sequentially comprises the steps that after purified calcium carbide furnace gas is pressurized and mixed with medium-pressure steam and then the obtained mixture enters a shift-converter to carry out shift-conversion, the obtained gas enters a methanation reactor to carry out methanation, and then enters a decarbonization system to remove CO2; the gas subjected to CO2 removal is dried, and then enters a methane concentration system to carry out concentration, thereby obtaining synthetic natural gas; and the removed CO2 is prepared into food-grade CO2 through a recovery unit. The decarbonization system can adopt a PSA (pressure swing adsorption) dry decarburization process, and also can adopt a wet decarburization process. The wet decarburization is implemented by removing CO2 by using a thermokalite method or MDEA washing. A CO2 recovery unit has the functions of CO2 collecting, purifying, and purification by flash distillation. The methane concentration can be implemented by concentrating methane by using a PSA method, and also can be implemented by concentrating methane through low-temperature separation. The process disclosed by the invention is a packaged technology for co-producing synthetic natural gas and food-grade carbon dioxide by using calcium carbide furnace gas, which is suitable for industrial scale applications.

The invention discloses a high-sensitivity uncooled infrared detector. In the detector, a copolymer of polyvinylidene fluoride and trifluoroethylene is used as a pyroelectric material and grown on a polyester material substrate, on which a metal bottom electrode is prepared, by a Langmuir-Blodgett method; then a top metal electrode is grown on the surface of the material to form a capacitor structure; and a poly-3,4-ethylenedioxythiophene / polystyrene sulfonate conductive polymer is grown on the top electrode to serve as an infrared absorbing layer.

The invention discloses an ultraviolet fluorescent three-signal water quality sensor using a single UV-LED as a light source and its application, belonging to the fields of environmental monitoring and water treatment. The ultraviolet fluorescent three-signal water quality sensor of the present invention comprises an optical path part and a signal control processing part, and the optical path part includes a UV-LED, a sample pool, an ultraviolet detector, a fluorescent detector A and a fluorescent detector B; the signal control processing part includes A power module, a signal amplifier A, a signal amplifier B, a signal amplifier C, an analog-to-digital converter and a microprocessor. The invention has no consumption of chemical reagents, can realize the real-time monitoring of the overall concentration change of dissolved organic matter in the water body, and can reflect the real-time change of the concentration of fluorescent components such as proteins or humic substances, and can be used for online prediction of the generation potential of disinfection by-products And the degree of degradation of micro-pollutants in the advanced oxidation process, providing a sensitive, fast, efficient, economical, simple but informative online monitoring device for water treatment.