5results about How to "Suppression problem" patented technology

The present invention provides a deodorant material containing artificial fibroin as an active component, an agent for imparting deodorant properties, containing artificial fibroin as an active component, an article containing the agent for imparting deodorant properties, and a method for imparting deodorant properties, including a step of adding artificial fibroin to an article.

The invention discloses a preparation method of a mesoscopic perovskite solar cell and the mesoscopic perovskite solar cell, and belongs to the technical field of mesoscopic perovskite solar cells. The passivation layers are prepared on the surface of the mesoporous spacer layer and the surface of the pore inner wall of the mesoscopic perovskite solar cell, oxygen vacancies on the surface of the mesoporous spacer layer can be effectively reduced, recombination of carriers is reduced, direct contact between the mesoporous spacer layer and a mesoporous membrane layer below the mesoporous spacer layer and a perovskite active layer is prevented, and the performance of the solar cell is improved. The interface of the perovskite crystal is passivated, carrier recombination at the interface of the mesoporous spacing layer and the perovskite active layer and at the interface of the perovskite active layer and the back electrode is inhibited, the carrier transmission life is prolonged, and the cell efficiency is improved.

The invention discloses a waste gas combustion furnace for semiconductor production, which belongs to the technical field of semiconductor waste gas treatment, and comprises a furnace body, a combustion chamber arranged in a cavity of the furnace body, and a combustion chamber arranged in the cavity of the furnace body, the combustion engine is arranged in the combustion chamber and used for providing heat for the combustion chamber; the heat exchanger is arranged in the cavity of the furnace body, and the heat exchanger is provided with a cold side channel and a hot side channel; the waste gas inlet is formed in the furnace body and communicated with a cold side channel inlet of the heat exchanger; the waste gas outlet is formed in the furnace body and is communicated with a hot side channel outlet of the heat exchanger; a cold side channel outlet of the heat exchanger communicates with the air inlet side of the combustion chamber, and a hot side channel inlet of the heat exchanger communicates with the air outlet side of the combustion chamber. The waste heat utilization rate of the waste gas combustion furnace is increased, and the fuel consumption and the operation cost are reduced.

The object of the present invention is to provide a needle coke for a graphite electrode, which suppresses puffing of the needle coke and improves the production yield and performances of graphite electrodes without incurring a large cost in the production of a needle coke, and also provide a production method and an inhibitor therefor. An inhibitor for graphite electrode production, including at least one of a metal consisting of an element (Mβ) and an oxide comprising the element (Mβ), wherein the element (Mβ) is at least one element selected from the group consisting of group 4 elements, group 8 elements, group 9 elements, group 10 elements, group 13 elements, group 14 elements and group 15 elements of the long-form periodic table, or including at least one of the metal consisting of an element (Mβ) and a compound including the element (Mβ), wherein the inhibitor volatilizes at a temperature of 2100 to 6000 °C.

The present application relates to polyester recycling, and provides a method for improving the yield and purity of regenerated BHET. After glycolysis of waste polyester in the presence of a metal catalyst, most of the free glycol is removed by evaporation under reduced pressure. A chelating agent composed of a polycarboxylic acid chelating agent and an organic phosphonic acid compound is added to the glycolysis solution, and a fixed bed circulation contact of a solid-supported chelating agent with polycarboxylic acid groups supported on a porous carrier is used to remove metal ions. Subsequently, the glycol is further removed by thin film evaporation to obtain a BHET-rich glycolysis solution. Finally, the distillate is collected in a short path distiller according to the set switching conditions of BHET content and acid value to obtain a high-purity BHET product. This method can inhibit re-polymerization and thermal degradation, reduce metal residues and oligomer content, and improve the yield and purity of BHET.