491 results about "Carbon bisulfide" patented technology

The invention discloses a preparation method of a modified bio-charcoal based catalyst, which can remove carbonyl sulfide, carbon disulfide, and hydrogen cyanide at the same time. The bio-charcoal is taken as the carrier, a series of modifications is carried out to prepare the catalyst, the catalyst is applied to catalytic hydrolysis so as to simultaneously remove COS, CS2, and HCN; the work temperature of the catalyst is not higher than 100 DEG C, the removal rates of COS and CS2 are not less than 90%, the removal rate of HCN is not less than 70%; and the bio-charcoal based catalyst is prepared by the following steps: subjecting waste biomass to carbonization and activation in sequence so as to obtain the bio-charcoal carrier, then boiling the bio-charcoal carrier in a KOH solution, adding the bio-charcoal carrier in a metal salt solution to carry out ultrasonic impregnation, then burning the bio-charcoal carrier at a certain temperature; adding the burned bio-charcoal carrier into an alkaline solution to carry out ultrasonic impregnation, and finally drying to obtain the bio-charcoal based catalyst. The technology is concise, the operation is convenient, the operation is continuous, COS, CS2 and HCN in flue gas are removed and converted into valuable resources, and no secondary pollution is generated.

The invention relates to a C- and S- containing compound producing method and device, concretely a CS2 producing process and device, adding carbon- containing solid matter in a fluidized bed heating oven by spiral feeder, burning out a part of carbon-containing solid matter after air fluidization, and simultaneously heating the other part of carbon- containing solid matter; putting the heated carbon-containing solid matter into a fluidized bed reactor where the fluidized carbon-containing solid matter reacts with sulfur steam to produce CS2-containing course gas; and the unreacted carbon-containing solid matter is transported through vertical pipe into the fluidized bed heating oven. And it increases gas-solid contact surface, and implements continous production; increases actual utilization of raw materials; the whoel device has a simple structure and a wide range of applicable raw mateirals.

The invention discloses a preparation method of a nanopore cellular membrane. The method comprises the following steps: preparing a 6mg/mL to 14mg/mL polymer solution by selecting a proper solvent; coating the polymer solution on the surface of a substrate and standing in a normal-temperature atmospheric environment with the relative humidity of 60% to 90% for 30 seconds to 4 minutes; and obtaining the cellular membrane with a nanopore structure after the complete volatilization of the solvent, wherein the pore diameter of the cellular membrane ranges from 10nm to 100nm; the solvent is selected from carbon disulfide, chloroform, dichloromethane or toluene; and the substrate is selected from a silicon slice, glass, a gold slice, a silver slice, a polyester film or a polyimide film. According to the method disclosed by the invention, the cellular membrane with the surface-layer nanopore structure is prepared via a spirogram method by only adopting the double-end based functionalized linear polystyrene. As a result, the smallest pore is prepared up to now via the spirogram method.