33results about How to "Reduce compression costs" patented technology

A process for extracting the high-purity H2 and CO2 from the intermediate gap generated by converting dry hydrocarbon vapor includes wet decarbonizing and pressure-varying adsorption. Its advantages are high purity, high output rate of H2, low output rate of CO2, and low cost.

This invention is drawn to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene using a catalyst comprising a zeolite, a platinum-group metal and a silica binder. A relatively minimal amount of hydrogen is supplied to the process on a once-through basis, resulting in low saturation of aromatics while achieving effective xylene isomerization with reduced processing costs.

A catalyst containment unit includes two concentric perforate members defining an annular space in which a particulate catalyst may be placed, and process fluid-impermeable end members mounted on the ends of the perforate members, wherein one end member extends across the unit to provide a closed end and the other end member closes the annular space thereby providing an open end through which gases may enter or exit the unit, and suspending means attached to one or both end members for securing the unit within an ammonia oxidation vessel. The unit may be suspended, for example, below a precious metal ammonia oxidation gauze pack and may contain a particulate ammonia oxidation catalyst or nitrous oxide abatement catalyst. A catalyst combination includes a precious metal ammonia oxidation catalyst gauze on a supporting framework and a particulate catalyst disposed in a catalyst containment unit.

The invention provides a metal hydride hydrogen-pressurizing device with a full-automatic multi-stage compression function. The metal hydride hydrogen-pressurizing device with the full-automatic multi-stage compression function comprises two or more metal hydride compression units, a heat exchange unit and a control unit. The metal hydride compression units are arranged inside the heat exchange unit, the pressure, flow and temperature of a system are detected through the control unit, and thus automatic operation of the metal hydride hydrogen-pressurizing device is achieved. The metal hydride hydrogen-pressurizing device with the full-automatic multi-stage compression function is small in occupied space, free of noise, low in compression cost, easy to operate and convenient to maintain, has a hydrogen purification function, is an economical and efficient hydrogen compressor product, and can replace a traditional mechanical compressor.

The invention discloses a Redis-based picture caching method, a Redis-based picture caching device, a storage medium and equipment. The method comprises the steps: obtaining a plurality of to-be-stored pictures, and calculating the picture similarity among the to-be-stored pictures according to a difference value hash algorithm; grouping the pictures to be stored according to the picture similarity to obtain a plurality of picture groups; splicing the pictures to be stored in the picture group to obtain spliced pictures corresponding to the picture group; performing lossless compression on each spliced picture to obtain a compressed picture file; and performing Redis cache storage on the compressed picture file. According to the method, grouping processing is carried out on the pictures according to the picture similarity. The lossless compression is carried out on the pictures. Therefore, the repeated expression of pixel blocks is reduced, and the storage cost is reduced.

The invention discloses an integrated hydrogenation method for producing clean diesel. The method comprises the following steps of: performing hydrogenation refining on a diesel material with high cetane number in a first hydrogenation reaction area; separating in a thermal high-pressure separator, mixing the separated hydrogen-rich gas and a diesel material with low cetane number, allowing the mixture to enter a second hydrogenation reaction area, performing hydrodesulfurization, hydrodenitrogeneration, aromatics saturation and cycloalkane opening reaction under the action of hydrogenation refining and a hydrocracking catalyst, mixing a liquid-phase material flow obtained by the thermal high-pressure separator and a liquid material in the second hydrogenation reaction area, and allowing the mixture to enter a fractionation system; and finally obtaining the clean diesel and a small amount of naphtha with high aromatic hydrocarbon. By the method, a clean diesel product having the sulfur content of less than 10ppm and the cetane number of more than 51 can be produced. On one set of device, two technological processes are implemented, the flow is relatively simple, the hydrogen utilization rate is high, device investment and operating cost are low, and the process selectivity and economic efficiency are high.

The invention discloses a novel IGCC system and a method for realizing CO2 capture before combustion by using a mixed conductor oxygen permeation membrane reactor. The system comprises: a membrane reactor unit; a cooling unit; a CO2 compression capture unit; an S and H2O filtering unit (5); an S collector unit (6); a vaporizing chamber on the water side of the membrane reactor; and a H2 combustionpower generation unit at a water side outlet. According to the invention, crude synthesis gas obtained by an industrial integrated gasification combined cycle (IGCC) system is used as a raw material,hydrogen is obtained on one side of the mixed conductor oxygen permeation membrane reactor and is subjected to combustion and power generation, and high-purity CO2 is obtained on the other side of the mixed conductor oxygen permeation membrane reactor and is subjected to compression and liquefaction so as to achieve CO2 capture before combustion; and with the system and the method, the mixed conductor oxygen permeation membrane reactor and the IGCC system are combined for the first time to achieve the CO2 capture before combustion.

The invention provides a reference frame cache data compression method, a computer device and a computer readable storage medium, and the method comprises the steps: carrying out the risk allocation of a row target bit number for each row of pixels, and obtaining the row target bit number of each color component of each row of pixels; performing risk allocation of a macro block target bit number on each macro block to obtain the macro block target bit number of each macro block; and analyzing and coding the macro block, wherein the risk allocation of the row target bit number for each row of pixels comprises the following steps: calculating the lowest coding bit number of each row of pixels, calculating the risk-adventure code rate of each row of pixels, carrying out advanced allocation on the risk-adventure code rate of each row of pixels, calculating the risk-adventure bit number of each row of pixels, calculating the risk-adventure bit number of each row of pixels, taking the sum of the lowest coding bit number of each row of pixels and the risk-taking bit number of the row of pixels as the target bit number of the row of pixels. The invention further provides a computer device and a computer readable storage medium for implementing the method. According to the invention, the compression of the reference frame can be easily realized through hardware.

The embodiment of the invention discloses a video storage method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining video data of a to-be-processed video; according to a preset scaling ratio, scaling down the size of the video data to obtained compressed video data; and storing the compressed video data and the audio data of the to-be-processed video. Different from the prior art, when the to-be-processed video is compressed, the method does not encode the to-be-processed video in any format, only compresses the video data rather than the audiodata, solves the problem that in the prior art, each encoding mode changes the data format of the original video information and a large number of compression tools are needed, achieves the effects ofcompressing the video by a unified tool, reducing the video compression cost and improving the tone quality of the video. Further super-resolution processing can be performed while the size of the video data is reduced, and the effect of improving the definition of the video data is achieved.

The invention belongs to the technical field of well mouth casing gas recovery, and particularly relates to a well mouth casing gas pressurizing recovery device, system and method and application. Through the well mouth casing gas pressurizing recovery device composed of a polished rod sealer, a polished rod, a well mouth four-way part, a pressurization device built-in plunger, a sieve pipe, a sub-coupling, a working barrel and a sucker rod, when the polished rod reciprocates and works synchronously with a downhole oil well pump, the suck-in and compressing technological process of the casinggas is completed in the working barrel, after pressurizing, the gas enters an oil collecting pipeline in the well mouth casing gas pressurizing recovery system to be subjected to pressurizing recovery, and the complete casing gas pressurizing recovery process is realized. The operation energy of a pumping unit is completely used in the whole pressurization process, and the working of the pumping unit and the normal production of an oil well are not influenced. The well mouth casing gas pressurizing recovery device can effectively improve the casing gas pressurizing recovery efficiency and hasthe advantages of being low in construction cost, convenient to install, automatic in operation and free of manual operation.

The invention discloses a solid waste garbage treatment device with a waste gas treatment function, and relates to the technical field of garbage treatment. The solid waste garbage treatment device with the waste gas treatment function comprises a garbage treatment box, wherein a separation plate is fixedly connected between the top and the bottom of an inner cavity of the garbage treatment box. According to the solid waste garbage treatment device with the waste gas treatment function, a kitchen garbage feeding pipe and an other garbage feeding pipe are arranged, and a crushing mechanism, anincinerator and an ash collecting mechanism are arranged inside the other garbage feeding pipe in a matched mode, so that other garbage can be incinerated to be prevented from emitting bad smell longtime later. An oil filtering mechanism and a compression mechanism are used for compressing kitchen garbage and squeezing out oil in the kitchen garbage, so that the kitchen garbage can be conveniently collected to be made into fodder. Finally, the peculiar smell in the garbage treatment box is pumped away through a treatment mechanism. According to the solid waste garbage treatment device with the waste gas treatment function, the waste gas generated by the garbage can be treated, the garbage can be pretreated, the environment of a garbage storage point can be improved, and the device is easyto popularize.

The invention provides an aging life prediction method for a pipeline system sealing structure and a compression tool. The method comprises the following steps of: (1) compressing a sealing structureto be tested; (2) performing constant-temperature aging on the sealing structure to be tested in a compressed state, and testing whether the sealing structure to be tested is invalid at the same timeinterval; and (3) determining the aging life of the sealing structure to be tested according to the original parameters and the parameters after failure of the sealing structure to be tested. The invention relates to an aging life prediction method of a sealing structure of a pipeline system. In the technical scheme provided by the invention, the actual application environment of the sealing structure to be tested is simulated by compression and aging of the sealing structure to be tested until the sealing structure to be tested fails, and finally, the aging life of the sealing structure to betested is obtained by comparison, analysis and calculation of the original data of the sealing structure to be tested and the data after failure. The method is simple in step and accurate in prediction, can accurately determine the aging life of the sealing structure, and provides a powerful data reference and support for the design of a pipeline system.

The invention discloses a compression device and compression method for box storage and transportation media. The compression device comprises a medium conveyer, a compression body, a compression head mechanism, an execution mechanism, a box conveyer and a control module, the compression head mechanism and the execution mechanism are respectively connected with the compression body, the compression head mechanism, the execution mechanism and the box conveyer are respectively and electrically connected with the control module, the box conveyer contains and conveys a box, and the box comprises a box compartment. The compression body comprises a frame and a compression compartment, the compression compartment is arranged on the frame, the compression compartment and the box compartment are arranged adjacently, the media enter the compression compartment through the medium conveyer, the compression head mechanism does the reciprocating motion between the compression compartment and the box compartment, and the media are pushed and compressed to the box compartment from the compression compartment. According to the compression device and compression method, a large number of smashed media can be compressed in a concentration mode, full-automatic operation is carried out, personnel investment is reduced, efficiency is improved, and benefits are increased.

The invention concerns a method and an installation for separating a gas mixture and gases obtained by said installation. The invention concerns a method and an installation for cryogenic separation of constituents of a natural gas under pressure (14) with a first phase separator (B1) whereof the constituents of each of the phases are separated in a distillation column (C1). Part of the gas fraction (5) derived from the head of the column (C1) is recycled at the last stage thereof. The method further comprises diverting (9) part of a first head fraction (3) derived from the first phase separator. Additionally, the method comprises separating a first base fraction (4) derived from the first separator, in a second separator (B2). The invention also relates to other embodiments.