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35results about How to "Solve the conversion rate" patented technology

Preparation method of forage bacillus subtilis powder

The invention discloses a preparation method of a forage bacillus subtilis powder. The preparation method comprises the following steps: first, the bacillus subtilis strain is inoculated on a slant culture medium to carry on slant culture, then the slant is flushed with a sterile physiological-saline, and a seed bacteria suspension is obtained; second, the seed-bacteria suspension is inoculated in a seed tank with the inoculation amount of 3% to 5%,by volume, to carry on fermentation culture, and a seed bacteria liquid is obtained; third, the seed bacteria liquid is inoculated into a fermentation cylinder to carry on the fermentation culture using a pressure difference method, and a fermentation broth is obtained; and fourth, bacteria sludge is obtained through bacteria-liquid separation of the fermentation broth, and the forage bacillus subtilis powder is obtained through spray drying of the bacteria sludge. Through the exploring of culture medium formulas and fermentation conditions, the problems that the bacteria powder prepared by conventional methods has low viable bacteria count and low spore transformation rate are well solved, the production efficiency is increased, and the cost of enterprises is reduced. The forage bacillus subtilis powder prepared through the method of the present invention has high viable bacteria count and high spore transformation rate.
Owner:杨凌壹之农微生物工程技术研究院有限公司

Coal hydrogenation catalytic gasification method and device

The invention provides a coal hydrogenation catalytic gasification method and device and relates to the technical field of coal gasification, aiming at the problems in an existing coal catalytic gasification technology that the content of CH4 at a gas outlet of a gasification furnace is low and a process is complicated. The coal hydrogenation catalytic gasification method comprises the following steps: processing coal powder and a catalyst to generate coal powder loaded with the catalyst; under the action of the catalyst, carrying out a hydrogenation catalytic gasification reaction on the coal powder loaded with the catalyst and H2 to generate CH4 and remained coke containing the catalyst; taking CO2 and H2 to react, so as to generate CH4; under the action of the catalyst, taking the remained coke containing the catalyst and mixed gas of water steam and O2 to be subjected to a remained coke gasification reaction, so as to generate H2 and CO2; taking the coal powder loaded with the catalyst and generated H2 to be subjected to the hydrogenation catalytic gasification reaction to generate CH4 and the remained coke containing the catalyst; taking generated CO2 and H2 to react, so as to generate CH4; and repeatedly carrying out the hydrogenation catalytic gasification reaction and the remained coke gasification reaction until the remained coke containing the catalyst is converted into residues containing the catalyst, so as to obtain CH4. The coal hydrogenation catalytic gasification method provided by the invention is applied to the field of coal gasification.
Owner:ENN SCI & TECH DEV

Catalytic permeable membrane reactor for producing hydrogen from ammonia-containing tail gas in MOCVDprocess as well as preparation method and application of the catalytic permeable membrane reactor

The invention discloses a catalytic permeable membrane reactor for producing hydrogen from ammonia-containing tail gas in an MOCVD process. In the membrane reactor, a porous gamma-aluminum oxide ceramic circular tube containing 5-10% (w/w, similarly hereinafter) of metal palladium is dispersed is used as a support body; an inorganic carbon nano-membrane, which contains 10-30% of cobalt and 5-20% of molybdenum as active components, 1-10% of lanthanum serving as an auxiliary catalytic component and 1-5% of potassium serving as an accelerant, is embedded into pretreated carbon nanotubes (CNTs) and coats the inner wall of an alumina ceramic round tube, has thickness of 10 nm to 1 [mu]m and pore diameter of 0.20 to 10 nm; thus forming the catalytic permeable membrane reactor which simultaneously has catalytic activity and separation selectivity. Ammonia-containing tail gas in the MOCVD process is pretreated and then enters a membrane reactor; at the reaction temperature of 400-600 DEG C, an ammonia thermal cracking catalytic reaction is performed under the reaction pressure of 2.0-5.0 MPa; and hydrogen-rich gas generated by the reaction is subjected to adsorption refining deamination,pressure swing adsorption purification and metal getter purification to obtain a hydrogen product with the purity of more than 6-7 N, and the hydrogen product is returned to the MOCVD process to be recycled, thereby filling the blank for green and circular economy development of the LED industry.
Owner:SICHUAN TECHAIRS

Method for inducing transdifferentiation of mesenchymal stem cells into skin stem cells

The invention discloses a method for inducing transdifferentiation of mesenchymal stem cells (AD-MSCs) into skin stem cells (AD-SSCs). The method specifically comprises: S1, rapidly separating and purifying homogeneous adipose mesenchymal stem cells; S2, selecting a variety of small RNA molecules stem capable of being used for stem cell epigenetic regulation; S3, assembling and transfecting nucleic acid polypeptide nanoparticles; S4, preparing a culture medium for inducing transdifferentiation of mesenchymal stem cells into skin stem cells; and S5, activating a variety of related genes for guiding the self-renewing and the transdifferentiation of the skin stem cells. According to the present invention, the human adipose mesenchymal stem cells with characteristics of easy obtaining, abundant source, no moral and ethical issue, safty and effectiveness are used as the induced object and are subjected to large-scale, rapid and high-purity transdifferentiation by transfecting the two small RNAs molecules under the effect of the special serum-free culture medium to obtain the AD-SSCs, wherein the induced skin stem cells are the same as the skin stem cells naturally produced in human body, and have the self-renewing ability and the potential for differentiation into the skin cells.
Owner:黄兵 +1

A B2b2C three-terminal online recruitment platform and a recruitment processing method

InactiveCN109003042AImprove recruitment efficiencyReduce recruitment costsPayment architectureOffice automationClient-sideBlue collar
The invention discloses a B2b2C three-terminal on-line recruitment platform and a recruitment processing method. The recruitment platform comprises an employer client end, which is used for publishingrecruitment requirements to a flash employment server, receiving information of job seekers meeting the recruitment requirements and settling commission; a job application client used for publishingjob application information to the flash employment server and sending job application information to the broker client; a broker client, configured to receive the recruitment request pushed by the flash employment server, search for qualified job applicants, and send the job applicants and the settlement commission to the employer client; the flash employment server is used for recording the recruitment requirement published by the employer client and the job application information published by the job seeker client, pushing the recruitment requirement to the broker client, and settling thecommission to the employer client and the broker client respectively. The invention has the advantages of low recruitment cost, higher recruitment efficiency and shorter recruitment time, and can realize rapid blue collar recruitment.
Owner:GUANGZHOU SHANPIN NETWORK TECH CO LTD

Solar street lamp capable of automatically adjusting angle of cell panel

The invention relates to the technical field of smart cities, and discloses a solar street lamp capable of automatically adjusting the angle of a cell panel. The solar street lamp comprises a mountingbox, a direct-current motor and a converter device are arranged in the mounting box, a storage battery is fixedly connected to the top of the converter device, a first bevel gear is movably connectedto the output end of the direct-current motor, and a second bevel gear and a third bevel gear are connected to the tooth edges of the left side and the right side of the first bevel gear in an engaged mode respectively. According to the solar street lamp capable of automatically adjusting the angle of the cell panel, when different photoresistors are irradiated by sunlight, two electromagnets respectively drive different contact blocks to abut against each other, and positive and negative electrodes of the storage battery are positively and negatively connected with positive and negative electrodes of the direct-current motor, so that the direct-current motor automatically changes the rotation direction. A first gear and a second gear are indirectly driven to rotate in cooperation with the direct-current motor, so that a toothed bar is driven to drive the solar cell panel to deflect, and the effects of automatically adjusting the angle of the solar cell panel and improving the light energy conversion and power storage efficiency are achieved.
Owner:张龙

Method for roasting vanadium-containing material by using chain grate machine and rotary kiln

The invention relates to the field of chemical methods for extracting vanadium, and in particular relates to a method capable of greatly improving the conversion rate and leaching rate of vanadium forroasting a vanadium-containing material by using a chain grate machine and a rotary kiln. The method comprises the following steps: a, crushing the vanadium-containing material to a required particlesize, mixing the crushed particles and additives, and performing mechanical activation to obtain a mixture; b, uniformly arranging the formed material in the chain grate machine by using a roll screening machine, and performing drying, curing and strengthening in the chain grate machine; and c, allowing the formed material to enter the rotary kiln for concentrated high-temperature roasting, performing discharge to obtain a vanadium-containing formed clinker, crushing the vanadium-containing formed clinker to a required particle size, and performing water leaching or acid leaching to obtain avanadium-containing leaching solution, wherein the vanadium-containing leaching solution is used for subsequent vanadium precipitation. The method uses the chain grate machine and the rotary kiln to roast the vanadium-containing material, has the technical advantages of a simple and easy process, low requirements for equipment, convenient operation, a wide application range and low costs, and is particularly suitable for the vanadium-containing material roasting process.
Owner:四川大裂谷钒业有限公司

Non-catalytic permeable membrane reactor for producing hydrogen from ammonia-containing tail gas in MOCVD process and application

The invention discloses a non-catalytic permeable membrane reactor for producing hydrogen from ammonia-containing tail gas in an MOCVD process and application. The catalyst is catalyst granules whichcomprise10-30% (w/w) of an active component cobalt, 5-20% (w/w) of an active component molybdenum, 1-10% (w/w) of a co-catalytic component lanthanum, 1-5% (w/w) of an accelerant potassium, and 35-83%(w/w) of pretreated carbon nanotubes (CNTs), wherein the catalyst granules are loaded in a ceramic membrane tube employing aluminum oxide as a supporting body and being coated with a metal palladium membrane layer, thereby forming a packed bed catalytic membrane reactor (PBCMR) packed in a catalyst fixed bed layer in the membrane tube; ammonia-containing tail gas in the MOCVD process is pretreatedand then enters a membrane reactor; at the reaction temperature of 400 to 600 DEG C, ammonia thermal cracking catalytic reaction is carried out under the reaction pressure of 1.0-3.0 MPa, wherein thereaction gas is subjected to adsorption refining deamination, pressure swing adsorption purification and metal getter purification to obtain a hydrogen product with the purity larger than 6-7 N; thehydrogen product then is returned to the MOCVD process to be recycled. By means of the technology, the blank of LED industry green and circular economy development is filled.
Owner:ZHEJIANG TIANCAIYUNJI TECH CO LTD

Continuous preparation method of pyridine N-oxides

The invention discloses a continuous preparation method of pyridine N-oxides. The method comprises the steps that a catalyst TS-1 molecular sieve and distilled water are added into a slurry reactor, the temperature is increased to 70-90 DEG C, the pressure is adjusted to be 0-1.5 MPa, then, a pyridine compound and hydrogen peroxide are added, and the air speed of the pyridine compound is adjusted to be 1-10 h<-1>, and the air speed of the hydrogen peroxide is adjusted to be 2-20 h<-1>; the molar ratio of the pyridine compound to the hydrogen peroxide is 1:1-1.1; the pyridine compound and the hydrogen peroxide are subjected to an oxidation reaction to generate a crude N-pyridine oxide, distillation separation and drying are performed to obtain the pyridine N-oxides, and the deactivated catalyst TS-1 molecular sieve is activated and continues to be adopted as a catalyst for use. According to the method, the titanium silicalite molecular sieve is adopted as the catalyst, the catalyst is high in repeated utilization ratio, the catalysis effect is good, the service life is long, the pyridine conversion rate and the pyridine N-oxide selectivity is high, and the effective utilization rate of the hydrogen peroxide is high; the slurry reactor is adopted as the reactor, operation is easy, postprocessing is simple, continuous production can be achieved, and the method is suitable for large-scale industrial production.
Owner:CHINA CATALYST HLDG CO LTD

Feed granulator

The invention provides a feed granulator which comprises a support base, wherein a granulation device and a power device are arranged on the support base; the power device is connected with the granulation device through a gearbox; the gearbox comprises an input shaft and an output shaft which are in transmission connection with the power device; the granulation device comprises a granulation tank which is fixed above the gearbox; the granulation tank comprises an upper granulation tank and a lower granulation tank; the output shaft extends in an axial direction into the lower granulation tank; a mold disc is fixedly connected with the upper end of the output shaft; a mold hole is formed in the mold disc; a discharge hole is formed in the lower granulation tank; a throwing disc which is fixedly connected with the bottom, in the lower granulation tank, of the output shaft; a pressing roller shaft which extends in an axial direction in a left and right direction is arranged in the upper granulation tank; pressing rollers are rotationally connected with both ends of the pressing roller shaft; a feeding hopper and a height adjusting mechanism for adjusting heights of the pressing rollers are arranged on the upper granulation tank. Powdery fine materials can be processed into a granular feed, so that the defects that a powdery feed is liable to cause environment pollution, causes resource loss, is large in floor space, inconvenient to store or transport, low in conversion rate, and the like, can be overcome.
Owner:郑州金燕机械设备有限公司
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