32results about How to "High interest rate" patented technology

The invention relates to a light hydrocarbon isomerization method comprising the following steps: light hydrocarbon materials are firstly separated by a de-isopentane tower, tower top streams are extracted as isomerization products, and tower bottom streams enter a front isomerization reactor to generate isomerization reaction; liquid phase streams obtained by the gas-liquid separation of outlet streams of the front reactor are separated in a de-isohexane tower, and tower top streams and tower bottom streams of the de-isohexane tower are extracted and then mixed with the tower top streams of the de-isopentane tower and are together taken as a gasoline-stripping stabilization system of the isomerization products; siding streams of the de-isohexane tower are extracted into a rear isomerization reactor; and liquid phase streams obtained by the gas-liquid separation of reaction streams of the rear isomerization reactor completely return and are mixed with the liquid phase streams of a gas-liquid separator of the front isomerization reaction system and together taken as feeding materials of the de-isohexane tower. The method has higher normal paraffin isomerization ratio, wherein the C6 normal paraffin realizes the complete isomerization basically, thereby greatly improving the octane number of the light hydrocarbon materials.

The invention discloses a device for efficiently compensating three-phase unbalanced loads and reactive power, which includes: three-phase current and three-phase voltage sampling circuits of a three-phase power system, a power controller and different three-phase compensation unit. It is characterized in that the power controller controls each single-phase switch in the three-phase compensation unit with different topological structures separately according to the sampling results, so that it can realize both common compensation and single compensation; it can not only compensate reactive power, but also balance Active power; it can be used as both static compensation and dynamic compensation; it can not only adjust the ability of three-phase current, but also adjust the three-phase unbalanced voltage. The invention is suitable for the transformation and updating of the existing reactive power compensation device of the three-phase four-wire unbalanced load power system.

The invention relates to a light hydrocarbon isomerization method. Isomerization reaction is performed for light hydrocarbon raw material in an isomerization reactor at the front part, gas-liquid separation is performed for the outlet stream of the reactor at the front part, the obtained liquid phase stream is separated in an isohexane removing tower, the overhead stream mainly comprising C5 cut fraction and dimethyl C6 alkane is mixed with the bottom stream mainly comprising C7 and cut fractions more than C7 so as to be used as isomate to enter into a gasoline stabilizer, the side stream mainly comprising C6 n-alkane and monomethyl C6 alkane is led into an isomerization reactor at the rear part; after the reaction stream of the isomerization reactor at the rear part is separated, the liquid phase stream all returns and is mixed with the liquid phase stream of a gas-liquid separator of the isomerization reactor at the front part so as to be used as the feeding of the isohexane removing tower. The method has higher n-alkane isomerization ratio and greatly improves the octane number of the light hydrocarbons raw material because the C6 n-alkane basically realizes the full isomerization.

The invention discloses a vacuum distillation method for gradual gasification segmented feed. The method includes: making atmospheric tower bottom oil enter a first stage gasification furnace, conducting heating to make the tower bottom oil enter a first stage flash tank to perform separation, leaving a gas phase to enter an upper fractionation segment of a vacuum tower, and leaving a liquid phase to enter a second stage gasification furnace; heating the liquid phase and making it enter a second stage flash tank, letting the generated gas phase enter a middle fractionation segment of the vacuum tower, and letting the generated liquid phase enter a third stage gasification furnace; heating the liquid phase and making it enter a third stage flash tank, letting the generated gas phase enter a lower fractionation segment of the vacuum tower, and letting the generated liquid phase enter a flash segment of the vacuum tower; and subjecting the feed of each segment to vacuum distillation in the vacuum tower, extracting a lateral line product from a vacuum tower lateral line, and extracting vacuum residue from the tower bottom. The method provided in the invention can substantially enhance the distillate yield of a crude oil vacuum distillation process, reduce equipment energy consumption, increase equipment economic benefits, and save equipment investment.

The invention discloses a method and a device for crude oil deep vacuum distillation. The method disclosed in the invention includes: introducing atmospheric tower bottom oil into a primary gasification furnace, conducting heating and leaving the oil to enter a primary flash tank to undergo separation, making the obtained gas phase enter a vacuum tower upper fractionation section, and letting the liquid phase enter a second stage gasification furnace; heating the liquid phase and making it enter a second-stage flash tank, leaving the obtained gas phase to enter a vacuum tower middle fractionation section, and making the obtained liquid phase enter a third-stage gasification furnace; heating the liquid phase and making it enter a third-stage flash tank, letting the obtained gas phase enter a vacuum tower lower fractionation section, and leaving the obtained liquid phase to enter a vacuum tower flash section; subjecting the feed of each section to vacuum distillation is the vacuum, extracting a lateral line product from a vacuum tower lateral line, and extracting vacuum residual oil from the tower bottom; and introducing part of the vacuum residual oil into the flash tanks of different stages respectively. The method provided in the invention can significantly improve the distillate yield of the crude oil in the distillation process, reduce device energy consumption, increase device economic benefits, and save device investment.

The invention discloses a crude oil reduced pressure distillation method for eliminating a choke point in a pressure reduction process. The method comprises the following steps: firstly, performing heat exchange on atmospheric pressure residual oil through an atmospheric pressure furnace convection section and a reduced pressure furnace convection section, raising the temperature by 5-20 DEG C, then feeding the residual oil into a reduced pressure flash column, operating the reduced pressure flash column at 5-30kPa, at the same time, introducing reduced pressure flash column light lube oil as washing oil from the upper part of a reduced pressure distillation column, performing heat exchange on a gas on the top of the reduced pressure flash column, condensing, cooling and directly extracting the gas as a product, extracting the washing oil in the middle of the reduced pressure flash column, feeding the washing oil below a light lube oil extracting plate of the reduced pressure flash column, feeding the flash base oil of the reduced pressure flash column into a reduced pressure furnace, heating to be 370-410 DEG C, feeding into the reduced pressure distillation column through an oil transfer line, performing reduced pressure fractionation, and then extracting products of different fractions from a side line of the reduced pressure distillation column. The method improves the crude oil reduced pressure distillation process, eliminates the choke points of the reduced pressure furnace and the reduced pressure distillation column, reduces energy consumption, improves the treatment capacity and increases the economic benefits of a device.

The invention discloses non-hydrogen dewaxing depressurizing distillation process and device. The process has the following steps of: using wax oil as the raw material, carrying out non-hydrogen dewaxing, atmospheric distillation, flash evaporation and depressurizing distillation, and then producing a lube base oil. The device comprises a raw material oil pump (1), a reactor (2), an atmospheric furnace (3), an atmospheric tower (4), a depressurizing furnace (5), a flash evaporating tank (6) and a depressurizing tower (7). The depressurizing tower is provided with a side line, and the lube base oil can be pumped from the side line. The heavy lube base oil can be pumped from the bottom of the depressurizing tower. When used for reforming the old device, the invention has the advantages of high utilization rate of the old equipment, investment saving, large operation flexibility and short idle time, obviously enhances the production separation effect, and optimizes the product quality.

The invention discloses a flash-strengthened crude oil reduced pressure deep distillation process. Atmospheric tower bottom oil is introduced into a first stage flash tank for separation after being heated in a first stage gasifier; a gas phase is introduced to an upper fractional distillation section of a reduced pressure tower; a liquid phase is introduced to a second stage gasifier and then to a second stage flash tank after being heated; the liquid phase is introduced to a third stage gasifier and then to a third stage flash tank after being heated; the gas phase is introduced to a lower fractional distillation section of the reduced pressure tower; the liquid phase is introduced to a flash section of the reduced pressure tower; feeding materials in various stages are introduced to the reduced pressure tower for reduced pressure distillation; lateral line products are pumped out from lateral lines of the reduced pressure tower; and residual oil is pumped from the bottom of the tower, wherein the upper gas phase zone of the reduced pressure flash tower is provided with a reduced pressure tower rotary evaporator; and the lower liquid phase zone of the reduced pressure flash tower is provided with a stripping gas distributor for introducing a high temperature stripping gas. The process provided by the invention can obviously increase distillation rate during a crude oil reduced pressure distillation process, reduce energy consumption of the apparatus, increase economic benefits of the apparatus, and save investment of the apparatus.

The invention discloses a data processing method, device and system. The data processing method includes: the cloud computing platform processes the acquired data, and sends the processed data to a data processing server; the data processing server transmits the data processed by the cloud computing platform to a data warehouse. The data processing method, device and system of the present invention extract and process data through the cloud computing platform, and the data processing server transmits the processed data to the data warehouse, thereby increasing the amount of data processing and realizing massive data processing, and will not Make too many changes to the existing architecture, maintain the relative independence of the cloud platform, and be easy to transform. The cloud computing platform has low cost, small investment, and high interest rate, which can relieve the pressure of system expansion and reduce system cost.

The present invention relates to an improved delayed coking process for increasing yield of gasoline and diesel oil, and is characterized by that in the conventional delayed coking process, in the lower portion of coking fractionating tower and between the diesel-oil extracting line and wax-oil extracting line a light cycle oil extracting line is added, then the extracted light cycle oil can be pumped into the outlet pipeline of feeding pump of the coking heating furnace by using light cycle oil pump and mixed with coking fractionating tower bottom oil discharged from feeding pump.

The invention discloses a method for rapidly peeling taros. The method is characterized by including the following specific steps of 1, ripening, wherein a salt solution is heated to 135 DEG C to 160 DEG C, the temperature is kept, and cleaned taros are put into the solution and boiled for 1 min to 3 min; 2, goffering, wherein the taros are rapidly bailed out, put into cold water and soaked for 1 min to 2 min, the temperature is rapidly reduced, it is prevented that taro curing layers are further increased, the huge temperature difference between the insides and the outsides allows peels of the taros to be rapidly wrinkled and fall off, and meanwhile the salt solution attached to the peels of the taros can be removed; peeling, wherein the taros enter a roller-type peeling machine through a conveying belt and are peeled, and the peeled taros are obtained. The method has the advantages that the peeling efficiency is high, losses are small, environment pollution is reduced, the operation cost is low, and the surfaces are smooth and not prone to browning after peeling.