6results about How to "Reduce separation load" patented technology

The invention discloses a low-energy-consumption natural gas low-temperature rectification decarburization process. The process comprises the following steps: S1, firstly removing water and sulfur-containing compounds in raw material gas; s2, cooling the raw material gas without water and sulfur-containing compounds to-30 DEG C to-27 DEG C, and introducing a separated gas-phase material without C4 and above light hydrocarbon substances into a tower kettle reboiler of a low-temperature rectifying tower as a heat source of the tower kettle reboiler to form a gas-liquid mixed material at-37 DEG C; and S3, controlling the pressure of the gas-liquid mixture at-37 DEG C to be 2.5-3.5 MpaA, introducing the gas-liquid mixture into a low-temperature rectifying tower, and finally harvesting methane-rich natural gas at the top of the tower and liquid-phase carbon dioxide at the bottom of the tower. The method has the advantages that the energy consumption is low, and the natural gas with complex components and ultrahigh carbon dioxide content can be decarbonized.

The utility model discloses an NMP (N-Methyl Pyrrolidone) waste liquid recovery energy-saving system, which relates to the field of NMP solvent recovery in the lithium battery industry and comprises a raw material inlet, a first preheater, a second preheater, a dehydrating tower, a refining tower, a dehydrating tower condenser, a dehydrating tower reboiler and a refining tower reboiler. A raw material inlet is connected with a first preheater through a pipeline, the first preheater is connected with a second preheater, an outlet pipeline of the second preheater is connected with a dehydrating tower, and a tower kettle of the dehydrating tower is connected with a refining tower. A first dehydrating tower middle reboiler and a second dehydrating tower middle reboiler are respectively arranged at the upper part and the lower part of the dehydrating tower stripping section and are respectively connected with a refining tower top gas phase pipeline and a refining tower side line product pipeline. And shell side condensate water of the dehydrating tower reboiler and the refining tower reboiler is respectively connected with the first preheater and the second preheater. According to the utility model, the preheater and the intermediate reboiler are adopted to recover high-grade heat, so that the steam consumption of the device is greatly reduced, and the energy consumption of the device is saved.

The invention discloses a method for separating and refining fusel oil in Fischer-Tropsch synthesis, and belongs to the technical field of chemical separation. In order to solve the problems of difficult separation and high energy consumption of fusel oil due to the existence of azeotrope, the invention provides a rectification and membrane separation coupled process. The method comprises the following steps: firstly, pretreating a fusel oil raw material through a two-stage rectifying tower, and sequentially removing water, heavy components and light components; then carrying out neutralization desalination treatment on the obtained mixed alcohol solution, and then feeding the mixed alcohol solution into a steam permeable membrane system for deep dehydration to obtain mixed alcohol steam with low water content; and finally, sequentially feeding the dehydrated alcohol steam into a subsequent rectifying tower, and separating to obtain high-purity ethanol, n-propyl alcohol and n-butyl alcohol products. Through energy integration design, high-temperature material flow is used for preheating raw materials and providing a heat source for the rectifying tower, and energy consumption is remarkably reduced. The method is reasonable in process, effectively breaks through the alcohol-water azeotropic limitation, and realizes efficient and low-cost separation of high-added-value components in fusel oil.

The invention provides a silane gas production system and method based on double reactive distillation columns, the system comprises a second reactive distillation column (2) arranged in the silane gas production system, the middle input end of the second reactive distillation column (2) is connected with the bottom output end of a silane distillation column (3) in the silane gas production system, and the middle input end of the second reactive distillation column (2) is connected with the bottom output end of the silane distillation column (3). Receiving the output intermediate mixture and carrying out disproportionation reaction; the top output end of the second reactive distillation tower (2) is connected with the top output end of the first reactive distillation tower (1) in the silane gas production system, and substances in the second reactive distillation tower (2) are mixed for subsequent treatment; the bottom output end of the second reactive distillation tower (2) is connected with the middle input end of the first reactive distillation tower (1) in the silane gas production system, and the output substances are subjected to disproportionation reaction. According to the method, the silane gas production based on the double reactive distillation towers is realized by adopting the system.

The application discloses a biological sludge recycling type sewage treatment reaction device, and relates to the technical field of sewage treatment. The device comprises a pool body, the inner part of the pool body is fixedly connected with a first partition plate, a second partition plate and a connecting plate respectively, the pool body and the first partition plate form an anaerobic zone, and the first partition plate, the second partition plate and the pool body jointly form an anoxic reaction zone. In the application, the sludge quality separation and reflux system is matched with the gradient sedimentation assembly through the spiral separator, the reinforced cyclone hydraulic field is formed in the anaerobic zone by means of the spiral flow channel with a narrowing inner diameter from top to bottom, the centrifugal force is used to make the inert sludge and heavy particles with a larger density migrate to the pool wall and sink to the sludge hopper to complete in-situ concentration, the preliminary sludge separation is realized, the separation load of the subsequent sedimentation unit is effectively reduced, the mixed contact of the sewage and the anaerobic sludge is strengthened by the cyclone state water flow, a stable anaerobic environment is created for the phosphorus accumulating organisms, and the phosphorus accumulating organisms are promoted to release phosphorus efficiently.

This application discloses a dust collection device for molten iron tapping, belonging to the field of dust collection technology. It includes an operating box. The design is novel and ingenious. By incorporating a cooling mechanism, water tank, water pump, water supply pipe, diversion pipe, atomizing spray head, water inlet, and a No. 1 cover, it facilitates the collection of high-temperature dust. Turning on the water pump delivers water from the tank to the dust collection cylinder via the water supply pipe, then diverts the water to both ends of the pipe, finally atomizing it through multiple diversion pipes and spraying it out to cool the high-temperature dust flowing through the dust collection cylinder. When the water tank is low on water, the No. 1 cover can be opened to add water through the water inlet, ensuring a sufficient water supply. This mechanism utilizes the high-speed spraying of atomized water to cool the high-temperature dust, efficiently treating high-temperature dust at low cost, reducing environmental pollution, and ensuring that the cooled dust does not damage subsequent equipment, greatly improving the practicality of the device.