Abstract: Disclosed is a method for partially regenerating a catalyst for methanol and/or dimethyl ether-to-olefin. The method comprises: introducing a mixed gas into a regenerated region containing a catalyst to be regenerated, and subjecting same to a partial regeneration reaction to obtain a regenerated catalyst, wherein the mixed gas contains water vapor and air; and in the regenerated catalyst, the coke content of at least part of the regenerated catalyst is greater than 1%. The method utilizes the coupling of a mixed gas of water vapor and air to activate a deactivated catalyst, selectively eliminate part of a coke deposit in the catalyst to be regenerated, and obtain a partially regenerated catalyst for methanol-to-olefin. Another aspect of the present invention is that further provided is a method for methanol and/or dimethyl ether-to-olefin by using the partially regenerated catalyst for methanol-to-olefin regenerated by means of the method.

Abstract: A method for debugging the display panel includes: acquiring a target correction data table of the display panel in each of at least one color mode by debugging the display panel in each of the at least one color mode. Debugging the display panel in each of the at least one color mode includes: controlling the display panel to display a test picture in the color mode; acquiring an initial display parameter curve based on a display parameter of the test picture; determining a reference display parameter curve based on the initial display parameter curve and a standard display parameter curve; and determining the target correction data table based on the reference display parameter curve and the standard display parameter curve.

Abstract: An OLED display substrate, a method of manufacturing the OLED display substrate, and a display device are provided. The OLED display substrate includes a plurality of aperture regions arranged in an array on a base substrate; and a plurality of storage capacitors on the base substrate, an orthographic projection of each storage capacitor of the plurality of storage capacitors on the base substrate having an overlapping region with an orthographic projection of an aperture region corresponding to the storage capacitor in the plurality of aperture regions on the base substrate.

Abstract: Disclosed are a fast fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, with the reactor, device and method being capable of solving or improving the problem of competition between an alkylation reaction and an MTO reaction during the process of producing the para-xylene and co-producing light olefins from toluene and methanol, thus achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, the competition between the alkylation reaction and the MTO reaction is coordinated and optimized to achieve a synergistic effect, thereby increasing the conversion rate of toluene, the yield of para-xylene and the selectivity of the light olefins.

Abstract: Disclosed is a method for producing low carbon olefins and/or aromatics from feedstock comprising naphtha. The method can include the following steps: a) feeding feedstock comprising naphtha into a fast fluidized bed reactor; b) contacting the feedstock with a catalyst under conditions to produce a gas product and spent catalyst; c) separating the gas product to produce a stream comprising primarily one or more low carbon olefins and/or one or more aromatics; d) transporting the spent catalyst to a regenerator; e) regenerating the spent catalyst in the regenerator to form regenerated catalyst; and f) returning the regenerated catalyst to the fast fluidized bed reactor.

Abstract: The present disclosure includes a system for producing low carbon olefins and/or aromatics from raw material comprising naphtha. The system can include a reaction unit that includes a fast fluidized bed reactor, a stripping unit that includes a stripper, and a regeneration unit. The reactor unit is adapted to allow the catalytic cracking of naphtha and to output reaction unit effluent material (spent catalyst and product gas) into the stripping unit, which is adapted to output product gas. The stripping unit is connected to and in fluid communication with the regeneration unit such that the stripping unit supplies the spent catalyst from the reaction unit to regeneration unit. The regeneration unit is adapted to regenerate the spent catalyst to form regenerated catalyst. The regeneration unit is connected to and in fluid communication with the fast fluidized bed reactor such that, in operation, regenerated catalyst can be sent to the fast fluidized bed reactor of the reaction unit.

Abstract: Embodiments of the disclosure provide an oximeter, including a blood oxygen collecting unit that has a first light emitting unit, a second light emitting unit, and a light receiving sensor, the first light emitting unit emitting a red light, the second light emitting unit emitting an infrared light, and the light receiving sensor receiving the red light emitted by the first light emitting unit and the infrared light emitted by the second light emitting unit and not absorbed by the human body, and converting them into an electrical signal, a storage unit that stores a first threshold value, a microprocessor that calculates a blood oxygen saturation of the human body based on the electrical signal detected by the light receiving sensor, and includes a judging unit that judges whether the blood oxygen saturation is lower than the first threshold value, and a display unit.

Abstract: The disclosure relates to an oximeter, including a blood oxygen collecting unit that has a first light emitting unit emitting a red light, a second light emitting unit emitting an infrared light, and a light receiving sensor receiving the red light emitted by the first light emitting unit and not absorbed by a human body and the infrared light emitted by the second light emitting unit and not absorbed by the human body, and converting them into an electrical signal, a storage unit that stores measurement data and/or a power-on startup screen, the power-on startup screen including the last measurement result of a blood oxygen saturation and/or previous measurement results of the blood oxygen saturation, a power-on button that is for power-on startup, a microprocessor that calculates a blood oxygen saturation of the human body based on the electrical signal detected by the light receiving sensor.

Abstract: A turbulent fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, resolving or improving the competition problem between an MTO reaction and an alkylation reaction during the process of producing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, and achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, competition between the MTO reaction and the alkylation reaction is coordinated and optimized to facilitate a synergistic effect of the two reactions, so that the conversion rate of toluene, the yield of para-xylene, and the selectivity of light olefins are increased. The turbulent fluidized bed reactor includes a first reactor feed distributor and a number of second reactor feed distributors and are arranged sequentially along the gas flow direction.

Abstract: A turbulent fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, resolving or improving the competition problem between an MTO reaction and an alkylation reaction during the process of producing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, and achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, competition between the MTO reaction and the alkylation reaction is coordinated and optimized to facilitate a synergistic effect of the two reactions, so that the conversion rate of benzene, the yield of para-xylene, and the selectivity of light olefins are increased.

Abstract: An OLED display substrate, a method of manufacturing the OLED display substrate, and a display device are provided. The OLED display substrate includes a plurality of aperture regions arranged in an array on a base substrate; and a plurality of storage capacitors on the base substrate, an orthographic projection of each storage capacitor of the plurality of storage capacitors on the base substrate having an overlapping region with an orthographic projection of an aperture region corresponding to the storage capacitor in the plurality of aperture regions on the base substrate.

Abstract: Embodiments of the disclosure provide an oximeter, including a blood oxygen collecting unit that has a first light emitting unit, a second light emitting unit, and a light receiving sensor, the first light emitting unit emitting a red light, the second light emitting unit emitting an infrared light, and the light receiving sensor receiving the red light emitted by the first light emitting unit and the infrared light emitted by the second light emitting unit and not absorbed by the human body, and converting them into an electrical signal, a storage unit that stores a first threshold value, a microprocessor that calculates a blood oxygen saturation of the human body based on the electrical signal detected by the light receiving sensor, and includes a judging unit that judges whether the blood oxygen saturation is lower than the first threshold value, and a display unit.

Abstract: A fast fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, resolving or improving the competition problem between an MTO reaction and an alkylation reaction during the process of producing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, and achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, competition between the MTO reaction and the alkylation reaction is coordinated and optimized to facilitate a synergistic effect of the two reactions, so that the conversion rate of benzene, the yield of para-xylene, and the selectivity of light olefins are increased.

Abstract: A fluidized bed reactor for producing para-xylene and co-producing light olefins from benzene and methanol and/or dimethyl ether, including a first distributor and a second distributor. The first distributor is located at the bottom of the fluidized bed, and the second distributor is located at the downstream of the first distributor along a gas flow direction. Also, a method for producing para-xylene and co-producing light olefins, including the following steps: a material stream A enters a reaction zone of the fluidized bed reactor from the first gas distributor; a material stream B enters the reaction zone of the fluidized bed reactor from the second gas distributor; a reactant contacts a catalyst in the reaction zone to generate a gas phase stream comprising para-xylene and light olefins.

Abstract: A turbulent fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, resolving or improving the competition problem between an MTO reaction and an alkylation reaction during the process of producing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and benzene, and achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, competition between the MTO reaction and the alkylation reaction is coordinated and optimized to facilitate a synergistic effect of the two reactions, so that the conversion rate of benzene, the yield of para-xylene, and the selectivity of light olefins are increased.

Abstract: Disclosed are a fluidized bed gas distributor and a fluidized bed reactor, the fluidized bed reactor comprising a first distributor (1) and a second distributor (2), wherein the first distributor (1) is located at the bottom of a fluidized bed, and second distributor (2) is located downstream of a gas from the first distributor (1). Also disclosed is a method for producing a para-xylene and co-producing light olefins, the method comprising the following steps: material stream A enters a reaction zone (3) of a fluidized bed reactor from a first gas distributor (1); material stream B enters the reaction zone (3) of the fluidized bed reactor from a second gas distributor (2); and the reactants are brought into contact with a catalyst in the reaction zone (3) to generate a gas phase stream comprising para-xylene and light olefins.

Abstract: The present application discloses a molecular sieve-based catalyst modification apparatus. The apparatus comprises a feed unit 1, a modification unit 2 and a cooling unit 3 connected in sequence; the feed unit comprises a catalyst feed unit 11 and a modifier feed unit 12, a catalyst and a modifier are introduced into the modification unit 2 respectively by the catalyst feed unit and the modifier feed unit and are discharged from the modification unit after sufficient reaction in modification unit, and then enter the cooling unit 3 for cooling. The present application further discloses a use method for the molecular sieve-based catalyst modification apparatus. The use method comprises: introducing a catalyst and a modifier into the modification unit 2 respectively through the feed unit 1; wherein the catalyst is modified by the modifier in the modification unit 2, and then discharged to the cooling unit 3 to cool until the temperature is lower than 50° C.

Abstract: The present application discloses a method for partially regenerating a methanol to olefin catalyst. The method comprises: placing a deactivated methanol to olefin catalyst in a regenerator and carrying out a a partial regeneration reaction to obtain a regenerated catalyst, at least a part of the regenerated catalyst having a carbon deposition of more than 1%. The present application discloses a methanol to olefin process which is carried out in a fluidized bed using a methanol to olefin catalyst, characterized in that at least a part of the regenerated catalyst has a carbon deposition of more than 1%.

Abstract: Embodiments of the disclosure provide an oximeter, including a blood oxygen collecting unit that has a first light emitting unit, a second light emitting unit, and a light receiving sensor, the first light emitting unit emitting a red light, the second light emitting unit emitting an infrared light, and the light receiving sensor receiving the red light emitted by the first light emitting unit and the infrared light emitted by the second light emitting unit and not absorbed by the human body, and converting them into an electrical signal, a storage unit that stores a first threshold value, a microprocessor that calculates a blood oxygen saturation of the human body based on the electrical signal detected by the light receiving sensor, and includes a judging unit that judges whether the blood oxygen saturation is lower than the first threshold value, and a display unit.