Abstract: The present invention pertains to the field of nutrition and medicine, and relates to a drug combination for anti-aging and its use. Specifically, the present invention relates to a drug combination comprising: 0.5 to 30 parts by weight of NR or its pharmaceutically acceptable salt, 0.5 to 30 parts by weight of NMN, and 0.01 to 35 parts by weight of mineral. The drug combination of the present invention has good anti-oxidative or anti-aging effects, and has excellent stability.

Abstract: Disclosed are a wristband and a wrist wearable device. The wristband includes a wristband body portion, a connecting portion, and a memory metal portion. One end of the wristband body portion is connected to the connecting portion, the connecting portion is connected to one end of a device body of a wrist wearable device, and another end of the wristband body portion is a free end. The memory metal portion is provided on the wristband body portion and has an arc-shaped memory state in a natural state, so that the wristband body portion is naturally maintained in an arc shape, and the wristband is naturally maintained in a wearing state.

Abstract: A method for processing a gasoline fraction includes the steps of: a) reacting the gasoline fraction in an aromatization unit, and separating the resulting reaction product to obtain a C4? component, a C5 component, a C6-C7 component, a C8 component and a C9+ component; b) reacting the resulting C6-C7 component and the C9+ component in a cracking and aromatics conversion unit, and separating the resulting reaction product to obtain a C4? component, a C5 component, a C6-C7 component, a C8 component and a C9+ component; and c) recycling at least a part of at least one of the C6-C7 component and the C9+ component from step b) to the cracking and aromatics conversion unit of step b) for further reaction. The method can convert the gasoline fraction into C8 aromatic hydrocarbon(s) and produce light olefins and a high-quality light gasoline as byproducts.

Abstract: A method for processing a hydrocarbon-containing mixture includes the steps of: I) separating the hydrocarbon-containing mixture into a light fraction and a heavy fraction; II) reacting the light fraction from step I) in an aromatization unit and separating the resulting reaction product into a C5? component and a C6+ component; III) reacting the heavy fraction from step I) and optionally the C6+ component from step II) in an aromatics conversion unit and separating the resulting reaction product into a C5? component, a C6-C7 component, a C8 component, and a C9+ component; and IV) optionally, steam cracking or catalytic cracking one or both of the C5? component from step II) and the C5? component from step III). The method can convert low-value hydrocarbon mixtures into C8 aromatic hydrocarbons and cracking raw materials, and improve the product value. A system for practicing this method is also provided.

Abstract: A catalyst for producing light aromatics with heavy aromatics, a method for preparing the catalyst, and a use thereof are disclosed. The catalyst comprises a carrier, component (1), and component (2), wherein component (1) comprises one metal element or more metal elements selected from a group consisting of Pt, Pd, Ir, and Rh, and component (2) comprises one metal element or more metal elements selected from a group consisting of IA group, IIA group, IIIA group, IVA group, IB group, IIB group, IIIB group, IVB group, VB group, VIB group, VIIB group, La group, and VIII group other than Pt, Pd, Ir, and Rh. The catalyst can be used for producing light aromatics with heavy aromatics, whereby heavy aromatics hydrogenation selectivity and light aromatics yield can be improved.

Abstract: Embodiments of the present disclosure relate to a primary plugin, a drawer and a distribution panel for a power distribution system. A primary plugin for a power distribution system is provided, the primary plugin comprising: a body; a socket assembly mounted on the body; a measuring unit mounted around the socket assembly and configured to measure electrical parameters in the power distribution system; and a data processing unit mounted on the body and coupled to the measuring unit, the data processing unit being adapted to receive and process the electrical parameters measured by the measuring unit and to upload the processed electrical parameters to a gateway.

Abstract: Embodiments of the present disclosure relate to a primary plugin, a drawer and a distribution panel for a power distribution system. A primary plugin for a power distribution system is provided, the primary plugin comprising: a body; a socket assembly mounted on the body; a measuring unit mounted around the socket assembly and configured to measure electrical parameters in the power distribution system; and a data processing unit mounted on the body and coupled to the measuring unit, the data processing unit being adapted to receive and process the electrical parameters measured by the measuring unit and to upload the processed electrical parameters to a gateway.

Abstract: A catalyst for producing light aromatics with heavy aromatics, a method for preparing the catalyst, and a use thereof are disclosed. The catalyst comprises a carrier, component (1), and component (2), wherein component (1) comprises one metal element or more metal elements selected from a group consisting of Pt, Pd, Ir, and Rh, and component (2) comprises one metal element or more metal elements selected from a group consisting of IA group, IIA group, IIIA group, IVA group, IB group, IIB group, IIIB group, IVB group, VB group, VIB group, VIIB group, La group, and VIII group other than Pt, Pd, Ir, and Rh. The catalyst can be used for producing light aromatics with heavy aromatics, whereby heavy aromatics hydrogenation selectivity and light aromatics yield can be improved.

Abstract: A process for the disproportionation and transalkylation of toluene and the heavy aromatics comprises: subjecting a first stream of toluene, and a stream enriched in aromatics of nine carbon atoms to toluene disproportionation and transalkylation reactions in the presence of hydrogen in a first reaction zone to produce a first product mixture comprising benzene, aromatics of eight carbon atoms and heavy aromatics of ten and more carbon atoms; subjecting a second stream of toluene, and a stream enriched in heavy aromatics of ten and more carbon atoms to transalkylation reaction in the presence of hydrogen in a second reaction zone to produce a second product mixture comprising benzene, aromatics of eight carbon atoms and aromatics of nine carbon atoms; and isolating and recovering benzene and aromatics of eight carbon atoms from the first and second product mixtures.

Abstract: A complete new process for producing p-xylene is provided to solve the problems in the prior arts of the great amount of benzene as a by-product and the requirement of low content of C10+ heavy aromatics in the feedstock. The process comprises first subjecting benzene and C9+ aromatics to alkyl transfer reaction to produce toluene and C8 aromatics, then conducting toluene selective disproportionation, and molecular sieve adsorptive separation and isomerization of C8 aromatics, to obtain p-xylene.

Abstract: A complete new process for producing p-xylene is provided to solve the problems in the prior arts of the great amount of benzene as a by-product and the requirement of low content of C10+ heavy aromatics in the feedstock. The process comprises first subjecting benzene and C9+ aromatics to alkyl transfer reaction to produce toluene and C8 aromatics, then conducting toluene selective disproportionation, and molecular sieve adsorptive separation and isomerization of C8 aromatics, to obtain p-xylene.

Abstract: A process for the disproportionation and transalkylation of toluene and the heavy aromatics comprises subjecting a first stream of toluene, and a stream enriched in aromatics of nine carbon atoms to toluene disproportionation and transalkylation reactions in the presence of hydrogen in a first reaction zone to produce a first product mixture comprising benzene, aromatics of eight carbon atoms and heavy aromatics of ten and more carbon atoms; subjecting a second stream of toluene, and a stream enriched in heavy aromatics of ten and more carbon atoms to transalkylation reaction in the presence of hydrogen in a second reaction zone to produce a second product mixture comprising benzene, aromatics of eight carbon atoms and aromatics of nine carbon atoms; and isolating and recovering benzene and aromatics of eight carbon atoms from the first and second product mixtures.

Abstract: The present invention relates a catalyst for the conversion of aromatic hydrocarbons, comprising by weight 20 to 90 parts of a crystalline aluminosilicate zeolite with a SiO2/Al2O3 molar ratio of 10 to 100, 0.05 to 10 parts of metal bismuth or oxides thereof supported on the zeolite, 0 to 5 parts of one or more types of metal(s) M or oxides thereof, M being selected from the group consisting of molybdenum, copper, zirconium, strontium, lanthanum, rhenium, iron, cobalt, nickel and silver, and 10 to 60 parts of alumina as an adhesive. The present invention also relates to a process for the conversion of aromatic hydrocarbons using the catalyst of the present invention and uses thereof in the production of aromatic hydrocarbons.

Abstract: The present invention relates a catalyst for the conversion of aromatic hydrocarbons, comprising by weight 20 to 90 parts of a crystalline aluminosilicate zeolite with a SiO2/Al2O3 molar ratio of 10 to 100, 0.05 to 10 parts of metal bismuth or oxides thereof supported on the zeolite, 0 to 5 parts of one or more types of metal(s) M or oxides thereof, M being selected from the group consisting of molybdenum, copper, zirconium, strontium, lanthanum, rhenium, iron, cobalt, nickel and silver, and 10 to 60 parts of alumina as an adhesive. The present invention also relates to a process for the conversion of aromatic hydrocarbons using the catalyst of the present invention and uses thereof in the production of aromatic hydrocarbons.