6results about How to "Flexible process control" patented technology

The invention relates to the field of high-value utilization of organic solid wastes, in particular to a biomass pyrolysis poly-generation device with a baking pretreatment system, which comprises a pretreatment furnace, a low-temperature pyrolysis furnace and a high-temperature carbonization furnace. Besides, the invention also provides a pyrolysis poly-generation method, raw materials pass through the pretreatment furnace and then enter the low-temperature pyrolysis furnace to be pyrolyzed, pyrolysis gas and pyrolysis carbon are generated, the pyrolysis gas is collected through a channel and discharged, and gas and liquid products with high combustion performance are obtained through subsequent separation and condensation treatment. Pyrolytic carbon enters a high-temperature carbonization furnace to be further carbonized into activated carbon, and waste heat is recycled for the pretreatment process. According to the invention, pretreatment, low-temperature pyrolysis and high-temperature carbonization are coupled in one system, water vapor generated by pretreatment is used for providing an activator for the carbonization process, waste heat generated by the high-temperature carbonization process is used for providing heat required by pretreatment, efficient pyrolysis and carbonization co-production is realized, and the system has the advantages of efficient energy utilization, energy conservation and environmental protection.

The invention relates to the field of high-value utilization of organic solid wastes, in particular to a biomass pyrolysis poly-generation device with a pretreatment system, which comprises a pretreatment furnace, a low-temperature pyrolysis furnace and a high-temperature carbonization furnace. In addition, the invention further provides a pyrolysis poly-generation method, raw materials pass through the pretreatment furnace and then enter the low-temperature pyrolysis furnace to be pyrolyzed, pyrolysis gas and pyrolysis carbon are generated, the pyrolysis gas is collected through a channel and discharged, follow-up separation and condensation treatment are carried out, high-value chemicals are obtained, the pyrolysis carbon enters the high-temperature carbonization furnace to be further carbonized into activated carbon, and the activated carbon is recycled. And the waste heat is recycled for the pretreatment process. The pretreatment, low-temperature pyrolysis and high-temperature carbonization are coupled in one system, the pretreatment is used for upgrading low-temperature pyrolysis and high-temperature carbonization products, the waste heat generated in the high-temperature carbonization process is used for providing heat required by the pretreatment, efficient pyrolysis and carbonization co-production is realized, and the system has the advantages of efficient energy utilization, energy conservation and environmental protection.

This invention discloses a system and process for flexibly controlling liquid delivery and recirculation, relating to the field of fuel delivery system technology. The system includes a first booster pump, a second booster pump, a first fuel storage tank, a second fuel storage tank, a fuel recirculation pipeline, and a booster pipeline. The first and second fuel storage tanks are connected to the inlets of the first and second booster pumps via the booster pipeline, and the outlets of the first and second booster pumps are connected to the first and second fuel storage tanks via the fuel recirculation pipeline. The system and process for flexibly controlling liquid delivery and recirculation in this invention enables flexible control of fuel delivery and recirculation processes. By controlling the delivery of alcohol-based fuels, it achieves risk prevention, simplification, and temperature control, and allows for easy switching to meet usage requirements. It also reduces the need for fuel booster pumps and allows for redundant configuration, reducing the risk of modifying the operating equipment.

The application belongs to the technical field of metallurgy, and particularly relates to a tungsten-molybdenum waste recovery method. The method places waste tungsten material or waste molybdenum material in an electrolysis system with sodium hydroxide or ammonia water as an electrolyte, and electrolyzes the waste tungsten material or waste molybdenum material as an anode to efficiently dissolve tungsten and molybdenum in the form of ions, so as to obtain an alkaline electrolyte rich in tungstate and molybdate; and then the electrolyte is subjected to subsequent treatment to recover corresponding products, thereby realizing the unity of process shortening, environmental friendliness and efficient resource recovery.

The invention relates to the field of high-value utilization of organic solid wastes, in particular to a biomass pyrolysis poly-generation device with an impregnation pretreatment system, which comprises a pretreatment furnace, a low-temperature pyrolysis furnace and a high-temperature carbonization furnace. In addition, the invention further provides a pyrolysis poly-generation method, raw materials pass through the pretreatment furnace and then enter the low-temperature pyrolysis furnace to be pyrolyzed, pyrolysis gas and pyrolysis carbon are generated, the pyrolysis gas is collected through a channel and discharged, follow-up separation and condensation treatment are carried out, high-value chemicals are obtained, the pyrolysis carbon enters the high-temperature carbonization furnace to be further carbonized into activated carbon, and the activated carbon is recycled. And the waste heat is recycled for the pretreatment process. The pretreatment, low-temperature pyrolysis and high-temperature carbonization are coupled in one system, the pretreatment is used for upgrading low-temperature pyrolysis and high-temperature carbonization products, the waste heat generated in the high-temperature carbonization process is used for providing heat required by the pretreatment, efficient pyrolysis and carbonization co-production is realized, and the system has the advantages of efficient energy utilization, energy conservation and environmental protection.

The invention relates to the field of high-value utilization of organic solid wastes, in particular to a biomass pyrolysis poly-generation device with a gas circulation system, which comprises a pretreatment furnace, a low-temperature pyrolysis furnace, a high-temperature carbonization furnace, a condenser and a combustor. In addition, the invention also provides a pyrolysis poly-generation method, raw materials pass through the pretreatment furnace and then enter the low-temperature pyrolysis furnace for pyrolysis, pyrolysis gas is subjected to separation and condensation treatment to obtain high-combustion-performance bio-oil, non-condensable gas is combusted to obtain carbon dioxide-rich high-temperature flue gas, the carbon dioxide-rich high-temperature flue gas and pyrolytic carbon enter the high-temperature carbonization furnace, and the high-temperature carbonization furnace is used for carbonization. The pyrolytic carbon is further carbonized into activated carbon, and waste heat is recycled for the pretreatment process. Pretreatment, low-temperature pyrolysis and high-temperature carbonization are coupled in one system, carbon dioxide-rich high-temperature flue gas obtained through pyrolysis gas combustion is used for providing an activating agent and heat for the carbonization process, waste heat generated in the high-temperature carbonization process is used for providing heat needed by pretreatment, and efficient pyrolysis and carbonization co-production is achieved.