81results about How to "Improve product properties" patented technology

The present invention is one process of hydrofining coked full fraction oil. Based on available process of hydrofining coked full fraction oil, new hydrogen of the system is used in further refining of diesel oil, so that diesel oil is refined under ideal thermodynamic and dynamic conditions. This results in high product quality, flexible, economic and practical technological process, less investment increment, fully utilization of heat energy and low operation cost. The present invention is suitable for reforming and constructing coked full fraction oil hydrofining apapratus.

The invention discloses a method for hydrogenation of coal tar via a fluidized bed. The method comprises the following steps: subjecting a coal tar raw material to hydro-upgrading; carrying out separation to remove water; and then carrying out hydrorefining and fractionation so as to obtain a gasoline fraction, a diesel fraction and hydrogenation tail oil. A hydro-upgrading catalyst used in the method comprises iron oxyhydroxide, organic polybasic carboxylic acid, macroporous alumina, a molecular sieve and pseudo-boehmite; and a hydrofining catalyst used in the method comprises iron oxyhydroxide, organic polybasic carboxylic acid, macroporous alumina and a binder. The method provided by the invention adopts cheap iron oxyhydroxide as an active metal component, the hydro-upgrading catalyst and the hydro-refining catalyst are graded, so cost is low. According to the invention, moderate cracking of coal tar is carried out before refining of coal tar, so impurities in coal tar are effectively removed, product distribution and product quality are adjusted, and the running period of a device is prolonged.

A carrier of hydrocatalyst for the hydrocracking of heavy oil, hydromodifying of poor diesel oil, etc is prepared from amorphour silicon aluminium, modified beta-molecular sieve and aluminium oxide. Its preparing process is also disclosed. Said catalyst has high catalytic activity.

The invention discloses a hydrocracking catalyst carrier and a preparation method thereof. The hydrocracking catalyst carrier comprises: a modified beta molecular sieve, a modified Y type molecular sieve and alumina. Specifically, the modified beta molecular sieve is prepared by: subjecting a crystallized beta molecular sieve slurry directly to ammonium exchange and a template agent removal treatment, then first conducting a hydrothermal treatment, and performing an aluminum salt solution treatment, under the condition of maintaining a high beta molecular sieve crystallinity, removing part of non-framework aluminum uniformly, thus obtaining the beta molecular sieve with the characteristics of high Si/Al ratio, large specific surface area, appropriate acidity and acid distribution, and reasonable pore structure, etc. The modified beta molecular sieve especially has a suitable cracking effect and a very good isomerization effect on long-chain alkane and the long side chain alkyl of aromatic hydrocarbon and cyclane, and has a synergistic effect with the Y type molecular sieve, so that the prepared hydrocracking catalyst can have very high catalytic activity and middle distillate selectivity. And the condensation point of diesel fraction is substantially reduced, and the product properties of middle distillate are improved.

The invention relates to hydrocracking method with composite catalyst bed, which comprises: hydrofining the material, then hydrocracking in reactor that the material contacts with hydromodification catalyst with eyelet elite and 0~80% hydrocracking catalyst; the material passes the hydromodification catalyst bed or composite catalyste bed then the hydrocracking catalyst bed. Compared with prior art, this invention can improve reaction speed and handling capacity.

The invention discloses an outcrop cultivation method for a Chinese herbal medicine by using a 50cm mulch film, relating to the technical field of medicine cultivation. The method comprises the steps of carrying out outcrop cultivation on a seedling by using the 50cm mulch film during transplanting. The outcrop cultivation method is suitable for planting scutellaria baicalensis, astragalus and liquorice, remarkable in yield increasing effect and also capable of remarkably increasing the root length, root diameter and top-quality good rate and improving the commodity characteristic of the Chinese herbal medicine. According to the invention, natural resources such as light, heat, water, soil and the like are sufficiently utilized to ensure that the Chinese herbal medicine is vigorous in growth and further enhanced in cultivation of resilience and pest and disease resistance, so that the kinds and occurrence rate of pest and disease damages are correspondingly reduced, and the usage number and usage amount of pesticides are correspondingly reduced.

The invention discloses a hydrocracking catalyst carrier and a preparation method thereof. The catalyst carrier adopts a modified Y type molecular sieve and a beta molecular sieve to serve as a cracking center together, wherein the Y type molecular sieve is a large-grained and high-silicon Y type molecular sieve with centralized effective aperture distribution. The hydrocracking catalyst prepared from the carrier can be used for a hydrocracking process with high yield of high-quality middle distillate oil products, has the characteristics of high activity and good selectivity, and also can produce high-quality hydrogenation tail oil.

The invention discloses a preparation method of a medium-oil hydrocracking catalyst carrier. The method comprises the steps that a beta-molecular sieve, a Y-molecular sieve, amorphous silica-alumina and a bonding agent are mixed, molded, dried and calcined to prepare the carrier, wherein the beta-molecular sieve is prepared through the steps that an amorphous silica-alumina precursor is prepared by adopting a specific acid-base precipitation method, then water, a silicon source and a template agent are added to obtain silica-alumina gel, two steps of dynamic crystallization, ammonium salt exchanging and template removing agent treating are sequentially conducted, and then the beta-molecular sieve is prepared. The beta-molecular sieve prepared through the method has the advantages of being high in crystallinity degree and silica-alumina ratio and good in stability, and the hydrocracking catalyst carrier prepared by taking the beta-molecular sieve as an acidic component of the hydrocracking catalyst carrier has the advantages of being good in activity, high in medium oil selectivity and good in product quality.

The invention discloses a preparation method of a middle distillate type hydrocracking catalyst. The preparation method comprises preparation of a carrier and loading of a hydrogenation active metal component, wherein a preparation method of the carrier comprises the following steps: mixing a beta molecular sieve, a Y molecular sieve, amorphous silica-alumina and an adhesion agent, shaping an obtained mixture I, and preparing the carrier by drying and roasting the shaped mixture I; a preparation method of the beta molecular sieve comprises the following steps: preparing an amorphous silica-alumina precursor by adopting a specific acid-alkaline precipitation method, then adding water, a silicon source and a template agent into the amorphous silica-alumina precursor to obtain silica-alumina gel, and carrying out two-step dynamic crystallization, exchanging with an ammonium salt and processing with a template stripping agent to obtain the beta molecular sieve. The beta molecular sieve prepared by the method provided by the invention has the characteristics of high degree of crystallinity, high silica-alumina ratio and high stability; the hydrocracking catalyst prepared by the method has the advantages of high activity, high middle distillate selectivity and high product quality.

The invention relates to the field of petrifaction, and discloses a hydrogenation protection catalyst as well as a preparation method and application thereof. The hydrogenation protection catalyst comprises an alumina carrier and a metal oxide active component, and the preparation method comprises the following steps: uniformly mixing and kneading pseudo-boehmite, anthracene, biotite and an extrusion aid to obtain a mixture; uniformly mixing and kneading a peptizing acid solution and the mixture, shaping, drying and roasting to obtain an aluminum oxide carrier; adding a nonionic surfactant into the precursor aqueous solution of the metal oxide active component to form a mixed solution; and impregnating the alumina carrier in the mixed solution, drying, and roasting to obtain the hydrogenation protection catalyst. Anthracene is used as a pore-enlarging agent, and a better pore-enlarging effect is achieved. The mechanical strength of the carrier can be improved; on the other hand, the activity stability of the downstream main catalyst can be better protected. According to the hydrogenation protection catalyst, inferior heavy oil can be completely utilized, and the obtained mixed aromatic hydrocarbon product is high in yield and low in impurity content.

Disclosed herein are a printed circuit board and a manufacturing method thereof. The printed circuit board includes a rigid substrate having a solder resist applied thereon and a flexible substrate connected to the rigid substrate in order to increase productivity by simplifying a process of manufacturing the printed circuit board. The manufacturing method includes: attaching a coverlay onto an upper surface of the flexible substrate; attaching an electromagnetic interference (EMI) film onto an upper surface of the coverlay; attaching and pressurizing a substrate molding subsidiary material onto an upper surface of the EMI film; and separating the substrate molding subsidiary material.

The invention discloses a hydrocracking catalyst carrier and a preparation method thereof. The carrier contains a beta molecular sieve, a Y type molecular sieve and aluminum oxide, wherein the natures of the beta molecular sieve are as follows: the molar ratio of SiO2/Al2O3 is 30-150, non-framework aluminum accounts for below 2% of total aluminum, and silicon atoms coordinated by a Si(OAl) structure account for above 95% of the silicon atoms in a framework structure. The preparation method comprises the following steps: mixing the beta molecular sieve, the Y type molecular sieve and aluminum oxide and forming for preparation. In the catalyst disclosed by the invention, the beta molecular sieve with a uniform framework silica-alumina structure and the Y type molecular sieve are jointly used as a cracking component, and the prepared catalyst has the characteristics of high activity, high yield of high-quality intermediate fraction oil and capability of simultaneously co-producing high-quality hydrogenation tail oil in a hydrocracking process.

The invention discloses an oyster-mushroom culturing medium. The oyster-mushroom culturing medium is characterized by being prepared from, by weight, 20-27 parts of corncobs, 13-20 parts of pepper straw, 1-3 parts of wheat bran, 1-2 parts of lime, 1-2.5 parts of bean cakes and 0.3-1 part of diammonium hydrogen phosphate. According to the oyster-mushroom culturing medium, oyster mushrooms can absorb nutrients, oyster-mushroom growth is promoted, the growth cycle is shortened, the yield is increased, and the quality is improved; meanwhile, the eggplant straw is fully used, and circulation utilization of waste is achieved.

The invention relates to a combining re-producing method for producing a top-grade lubricating oil product by using useless lubricating oil. The method comprises the following steps that firstly, fraction which is lower than 500 DEG C of the useless lubricating oil is excised through reduced pressure distillation, and the fraction which is higher than 500 DEG C is obtained; secondly, hydrogenation reaction is carried out on the fraction which is higher than 500 DEG C under the action of a catalyst, after gas-liquid separation is carried out, liquid is obtained and enters a normal pressure fractioning tower, shunting is carried out on the liquid, a naphtha is obtained on the top of the normal pressure fractioning tower, diesel is obtained in the middle of the normal pressure fractioning tower; thirdly, primary isomerism depressing reaction is carried out on a product at the bottom of the normal pressure fractioning tower under the action of a second catalyst, a product of the isomerism depressing reaction is subjected to the gas-liquid separation and flashing, and light oil and lubricating oil are obtained. According to the method, the distillate oil yield can be reached above 99%, the product quality is good, the high added value is high, and therefore the great generalization and application prospect is achieved.

The invention discloses an oyster-mushroom culturing medium. The oyster-mushroom culturing medium is characterized by being prepared from, by weight, 20-25 parts of corncobs, 15-20 parts of eggplant straw, 1-3 parts of wheat bran, 1-2 parts of lime, 1-2.5 parts of bean cakes and 0.3-1 part of diammonium hydrogen phosphate. According to the oyster-mushroom culturing medium, oyster mushrooms can absorb nutrients, oyster-mushroom growth is promoted, the growth cycle is shortened, the yield is increased, and the quality is improved; meanwhile, the eggplant straw is fully used, and circulation utilization of waste is achieved.

The invention relates to compost and a method for cultivating selenium-rich auricularia auricula. The compost and the method aim to solve the problems of low selenium content of existing cultivated auricularia auricula and the like. The method includes (1), uniformly mixing 35% of selenium-rich ribes nigrum pomace and branches, 43% of sawdust, 20% of wheat bran, 1% of lime and 1% of gypsum fibrosum with one another to obtain mixtures, adding water into the mixtures, sufficiently uniformly stirring the mixtures and the water to allow the water content of the mixtures to reach approximately 60% and regulating a PH (potential of hydrogen) value of the mixtures until the PH value reaches approximately 8.0; (2), mixing the mixtures, then immediately bagging the mixtures, forming openings, inserting rods into the mixtures, sterilizing and cooling the mixtures, carrying out inoculation and sealing the openings; (3), carrying out spawn running management; (4), accelerating germination and separating spawn in beds; (5), carrying out auricularia auricula producing management; (6), harvesting finished products to obtain the auricularia auricula after auricularia auricula fruiting bodies grow and are mature by 80%. The compost and the method have the advantages that raw materials for cultivating the selenium-rich auricularia auricula are reasonable in matching and high in selenium utilization rate and are in nutrition balance, auricularia auricula cultivation requirements can be met by C/N (carbon nitrogen ratios), and accordingly the compost and the method have broad development prospects.

The invention provides a catalyst for hydrogenation conversion of Fischer-Tropsch synthetic wax and a preparation method and application thereof. The catalyst comprises the following components: Ni, Whydrogenation metal, a Y-type molecular sieve, an isomerization molecular sieve and aluminum oxide; the preparation method of the catalyst comprises the following steps: firstly, mixing and pulping aluminum oxide and water, and then sequentially adding a USY molecular sieve and a Ni metal compound to form a mixture; secondly, putting the mixture into a closed reaction kettle for dynamic hydrothermal treatment; thirdly, after treatment, adding an isomerization molecular sieve, fully stirring, filtering, drying, adding dilute nitric acid, performing extrusion molding, and roasting; and finally,impregnating the W metallide by adopting an equivalent-volume impregnation method, drying and roasting to finally obtain the hydrocracking catalyst. The hydrocracking catalyst prepared by the methodprovided by the invention has appropriate acid properties, pore properties and metal dispersibility, can effectively reduce the secondary cracking performance in the hydrocracking process of Fischer-Tropsch synthetic wax, and improves the yield and product properties of light fuel oil.

The invention discloses a preparation method of a glossy ganoderma garlic tea and the product of the glossy ganoderma garlic tea, and belongs to the technical field of health-care foods. The processing method comprises the following steps: (1) cutting the fruiting bodies of the glossy ganoderma into slices, and performing extraction, filtration and separation; (2) cutting the garlic into slices, and performing extraction, filtration and separation; (3) performing decompression, concentration and freeze drying on a filtrate; (4) drying and recovering filter residues; (5) mixing the filter residues and extracts so as to prepare the glossy ganoderma garlic tea. According to the preparation method disclosed by the invention, fat-soluble beneficial components in the glossy ganoderma and the garlic are separated and extracted out in an ethyl ether extraction manner, the fat-soluble beneficial components and the filter residues of glossy ganoderma fruiting body slices and garlic slices are mixed to prepare the tea beverage, in the process of brewing the tea beverage with hot water, water-soluble components of water-soluble active polysaccharide and the like are released, and fat-soluble effective substances can also be well dissolved in the water to be absorbed by a human body, so that the utilization efficiency of beneficial components of the raw materials is improved, and the economic benefits are improved; besides, the glossy ganoderma garlic tea has favorable health-care efficacies of weariness resistance, improving the immunity of the human body and the like.