201results about How to "Improve liquid yield" patented technology

The invention discloses a preparation method of a hydrocracking catalyst. The method comprises the steps of preparing an acidic mixed solution A containing hydrogenation reactive metals and silicon, preparing a sodium metaaluminate alkaline solution B, and then adding the acidic mixed solution A, the alkaline solution B and CO2 to a reaction tank filled with clear water in parallel to prepare gel; and then adding turbid liquid of a Y type molecular sieve, mixing the substances uniformly, filtering, drying and forming the mixture, and then washing, drying and roasting the product, thus preparing the hydrocracking catalyst. The method has the beneficial effects that a clean preparation method is adopted, so not only can the catalyst be easily formed and the strength of the catalyst be improved, but also the pore volume and specific surface area of the catalyst can be increased and the dispersity of metals in the catalyst can be improved, thus the catalyst has higher hydrocracking activity, middle oil selectivity and stability; and the catalyst prepared by the method can be used for a single-section hydrocracking process of a non-refining section or a one-section serial hydrocracking process of a refining section.

The invention relates to an efficient coupling hydro-upgrading method for producing gasoline with ultra-low sulfur and a high octane number. The method comprises the following steps of: distilling inferior full cut gasoline at 50-90 DEG C to obtain light cut gasoline and heavy cut gasoline; making the light cut gasoline contact with a hydrocarbon multi-branched isomerization catalyst; making the heavy cut gasoline contact with a selective hydrogenation desulfurization catalyst and a complement desulfurization isomerization/aromatization catalyst sequentially; and finally, mixing the treated light cut gasoline with the treated heavy cut gasoline to obtain the gasoline with the ultra-low sulfur and the high octane number. The method further comprises the step of: before the distillation, making the inferior full cut gasoline contact with a hydro-selective desulfurization alcohol catalyst, or, before making the light cut gasoline contact with a hydrocarbon multi-branched isomerization catalyst, making the light cut gasoline contact with the hydro-selective desulfurization alcohol catalyst. The efficient coupling hydro-upgrading method is suitable for the hydro-upgrading treatment of inferior gasoline with ultrahigh sulfur and high olefin, reduces the sulfur content after the upgrading treatment to below 5mu g/g (no sulfur substantially) and can maintain the octane number and higher yield of products.

The invention relates to a production method for ultra-low sulfur and high-octane number gasoline. The method comprises the following steps of: filling a poor-quality full range gasoline raw material in a reaction distillation column to contact the material with a sulfoether catalyst to perform a sulfur ether reaction and fraction cutting so that low-boiling point sulfides, such as thiol and thiophene, are converted into high-boiling point sulfoether which is then transferred into heavy fraction gasoline, wherein the cutting fractionation temperature of light fraction gasoline and the heavy fraction gasoline is 50 to 90 DEG C; contacting the light fraction gasoline with a hydrocarbon highly branched isomerization catalyst; contacting the heavy fraction gasoline with a selective hydrodesulfurization catalyst and a desulfurization-hydrocarbon isomerization/aromatization catalyst; and mixing the treated light fraction gasoline and the heavy fraction gasoline to obtain the ultra-low sulfur and high-octane number gasoline. The method is suitable for modifying poor-quality gasoline, can reach better desulfurization and olefin reduction effects on ultra-high sulfur and high-olefin poor-quality catalytic gasoline, and can maintain or increase the octane number of the product and keep a higher product yield after reaction.

A system for displaying images including a display panel is provided. The display panel has a display area and a peripheral area. The display panel includes a metal layer disposed on a first substrate. A patterned planarization layer is disposed on the metal layer, having at least one opening corresponding to the peripheral area, wherein a portion of the metal layer is exposed through the opening. A second substrate is disposed opposite to the first substrate. A seal is disposed at the peripheral area and between the first and the second substrates, wherein the seal covers the metal layer through the opening of the patterned planarization layer.

The invention relates to a selective hydrodesulfurization catalyst contains cobalt and molybdenum as active components. The selective hydrodesulfurization catalyst is characterized in that silicon oxide and aluminum oxide are used as carriers of the catalyst; based on the total weight of 100%, the catalyst comprises 2-6wt% of cobalt oxide, 9-15 wt% of molybdenum oxide, 2-8wt% of alkaline earth metal oxide, 2-6wt% of phosphorus oxide, 3-5wt% of alkali metal oxide, 2-6wt% of silicon oxide and 54-80 wt% of aluminum oxide; and the catalyst has the specific surface area of 200-300m<2>/g and the pore volume of 0.5-0.7mL/g. The catalyst has high hydrogenation activity and selectivity, good stability, low research octane number loss and high liquid yield. The catalyst is suitable for selective hydrodesulfrization of low-quality gasoline and is particularly suitable for selective hydrodesulfrization of low-quality FCC (Family Car China) gasoline.

The invention discloses a preparation method of a hydrocracking catalyst. According to the method, a nickel and aluminum precipitate is prepared with a straight addition method; a tungsten, silicon and aluminum precipitate is prepared with a parallel flow precipitation method; the two precipitates are mixed, and a suspension liquid of Y type molecular sieve is added, such that the catalyst is prepared. With the method, the distributions of different hydrogenation active metals can be controlled; high-activity phase can be formed among active metals tungsten and nickel; and the interaction between active metals and the carrier can be improved. Therefore, the hydrogenation activity and the cracking activity of the obtained hydrocracking catalyst can cooperate well, and the application performance of the hydrocracking catalyst can be improved.

The invention relates to a selective hydrodesulfurization catalyst and a preparation method thereof. The catalyst takes alumina and a silicon-aluminum mesoporous molecular sieve containing an ordered mesoporous structure as carriers, takes cobalt and molybdenum as the active components and takes magnesium as an addition agent. The preparation method of the catalyst comprises: mixing the alumina and the silicon-aluminum mesoporous molecular sieve; adding sesbania powder and nitric acid, then carrying out mixing kneading, shaping, drying and baking on the mixture to prepare the compound of the alumina and the silicon-aluminum mesoporous molecular sieve; then the compound is treated by organic acid and loaded with the addition agent of magnesium as well as the active components of cobalt and molybdenum, then, aging, drying and baking are carried out on the mixture to prepare the catalyst. The catalyst shows excellent gasoline selectivity and hydrodesulfurization activity, low loss of product researching octane number and high liquid yield by inducing the porous structure and acidity of the modulating catalyst of the ordered mesoporous molecular sieve, inducing the acidity of a magnesium modulating catalyst and inducing the manual effect between an organic acid modulating carrier and the active components.

The invention relates to a selective hydrodesulfurization catalyst of a combined alumina base and a preparation method thereof. The carrier of the catalyst is compounded by macroporous alumina with a specific surface of 280-300m<2>/g, and a pore volume of 0.8-0.9mL/g as well as fenestral alumina with a specific surface of 250-280m<2>/g, and a pore volume of 0.3-0.4mL/g; the active components of the catalyst are cobalt and molybdenum; the addition agents of the catalyst are magnesium and boron. The preparation method of the catalyst comprises: mixing the macroporous alumina and the fenestral alumina; adding sesbania powder and nitric acid, then carrying out mixing kneading, shaping, drying and baking on the mixture to prepare the compound carrier of the alumina; then loading the addition agents of magnesium and boron as well as the active components of cobalt and molybdenum in sequence, then carrying out drying and baking on the mixture to prepare the catalyst. The catalyst has excellent gasoline selectivity and hydrodesulfurization activity, low loss of product researching octane number, high liquid yield, and the like.

A nanocatalyst, dual catalyst and methods for improving the efficiency and output of a biomass gasification process are provided where the catalysts comprise a volatile organometallic compound(s) and/or a nanoalloy catalyst. By the catalyst and method, a very high biomass gasification conversion efficiency of over 85% can be achieved. The subject nanocatalyst cracks and gasifies lignin, which is generally inert in conventional gasification, at relatively low gasification temperatures. The subject disclosure also provides a means to increase gas yields and lower lignin content in the resulting product relative to conventional gasification. Alternatively, oil production may be increased, if desired. Moreover, the resulting gas may achieve a Fischer-Tropsch reactor favorable H₂:CO ratio of about 9:1. The energy input to the gasification is correspondingly reduced to reduce costs and the environmental impact associated with the gasification process.

The invention relates to a bicomponent naphtha reforming catalyst which comprises a molecular-sieve catalyst and an alumina catalyst, wherein the molecular-sieve catalyst is used for platinum exchange, the carrier of the alumina catalyst is alumina, the mass ratio of the molecular-sieve catalyst to the alumina catalyst is 1-9:9-1, the platinum content in the molecular-sieve catalyst on the calculating basis of a dry-basis molecular sieve is 0.1-2.0 percent by mass, the molecular sieve is a borosilicate molecular sieve or a low-aluminum borosilicate molecular sieve, and the alumina catalyst comprises the following active components with the content on the calculating basis of dry-basis alumina: 0.1-3.0 percent by mass of platinum-family noble metal, 0.1-5.0 percent by mass of VIIB-family metal and 0.5-10.0 percent by mass of halogen. The catalyst is applicable to naphtha catalytic reforming and has higher liquid yield and aromatics yield.

The invention discloses a method for synthesizing mesoporous molybdenum disulphide by taking a mesoporous silica molecular sieve as a hard template. The method comprises the following steps of: firstly, preparing a hydrochloric acid solution of alcohol amine; secondly, adding ammonium tetrathiomolybdate, standing at room temperature after stirred reaction, filtering, cleaning and drying in vacuumto obtain a precursor; thirdly, dissolving the precursor into water and absolute methanol, adding the mesoporous silica molecular sieve, and carrying out ultrasonography after stirred reaction to obtain a solid and liquid mixture; fourthly, placing the solid and liquid mixture into a muffle furnace after filtering, cleaning and drying, raising the temperature to 400-450 DEG C under the protectionof hydrogen, then, preserving the temperature for 1-2h, and cooling to the room temperature to obtain mesoporous molybdenum disulphide powder containing the mesoporous silica molecular sieve; and fifthly, cleaning 1-5 times by using an HF (Hydrogen Fluoride) aqueous solution and drying to obtain the mesoporous molybdenum disulphide. The mesoporous molybdenum disulphide synthesized by using the method provided by the invention is high in catalytic activity, the yield of tar obtained in coal pyrolysis reaction is high, and the using amount of catalysts is small, and no assistant is needed.

A suspension-bed hydrocracking process for preparing both the gasoline with high octane number and the diesel oil with high cetane number at same time includes adding the aqueous solution of alcohol,which contains catalytic active component and assistant and is used as high-dispersity catalyst, to heavy hydrocarbon as raw material, cracking to generate olefin while reaction of the olefin on alcohol to obtain the oxygen-contained compound with high octane number. and hydrocracking to obtain said diesel oil. Its advantages are high output rate and high quality of products.

The invention relates to a revivification method for a catalytic cracking waste catalyst, which is characterized in that composite acid and ammonium salt are treated, and at least one of a supported rare earth treatment process and a phosphorus-containing acid treatment process is employed. a principle is characterized in that by improving a tunnel structure of the catalyst, composite acid is used for dredging the tunnel of the catalyst, a part of structure of molecular sieve is reconstructed through reaction and calcinations, acidity of the catalyst is adjusted by a rare earth compound-containing and/or phosphate-containing compound, so that waste catalyst performance can be recovered, the specific surface and activity of the recovered catalyst can be obviously increased, stability is obviously increased, good liquefied gas and low carbon olefin selectivity can be presented, green coke is reduced, liquid recovery is increased, gasoline RON is increased by 0.5-3 points, propylene and butylene yield can be respectively increased by more than 20-40% and 10-30%.

A MEMS device includes a first substrate; a second substrate that is disposed laminated on the first substrate; and a functional element that is disposed between the first substrate and the second substrate, in which the second substrate is smaller than the first substrate, and in planar view, an end portion of the second substrate is disposed inside an end portion of the first substrate.

The invention relates to a preparation method and application of a catalytic cracking metal passivant. The preparation method comprises the following steps of: preparing raw materials in the following percentage by weight: 20%-45% of dispersing agents, 30%-50% of oxidants, 15%-30% of metal oxides, 10%-30% of solvents and 2%-5% of stabilizing agents; sequentially adding the oxidants and the metal oxides to the dispersing agents during preparation; increasing temperature to 50-90 DEG C within 2-4 hours, keeping the temperature for 1-5 hours and then cooling; adding the solvents and the stabilizing agents, and then filtering to remove impurities so as to obtain the metal passivant, wherein the dispersing agents are diethanol amine and/or triethanol amine; the oxidants are hydrogen peroxide of 30-50 percent and/or nitric acids of 66-68 percent; the metal oxides are one of diantimony trioxide, rare earth oxides and bismuth oxides or mixtures of more than two of the diantimony trioxide, the rare earth oxides and the bismuth oxides in any proportion; the solvents are one of water or alcohol solvents or mixtures of more than two of the water or the alcohol solvents in any proportion; and the stabilizing agents are methylcellulose compound solutions.

The invention discloses a slurry bed hydrogenation catalyst, and preparation, a design method and a use thereof; the catalyst includes the following components: a catalyst main body, molybdenum-containing red mud or hematite powder, a carrier and activated carbon; the molar ratio of a metal center Fe to the other metal center Mo in the red mud or hematite is 1:150 to 1:200, the mass ratio of the catalyst main body to activated carbon is 0.2:1 to 1.1:1, and the activated carbon has the pore size of 1-100 nm. The preparation method includes the following steps: firstly, preparing the molybdenum-containing red mud or hematite powder, then adding activated carbon with the particle size of 50-150 [mu]m into the molybdenum-containing red mud or hematite powder, mixing evenly, and thus obtaining the slurry bed hydrogenation catalyst. The slurry bed hydrogenation catalyst has the advantages of low cost, simple preparation method, and easy storage and transportation, can be discarded and has no need of recycling, is applied to heavy oil slurry bed hydrogenation, coal direct liquefaction and oil coal mixing, and achieves quite high residual oil/oil coal conversion rate and liquid yield.

The naphtha reconstituting treatment process includes the following steps: extraction separating naphtha to obtain extract oil and raffinate oil; cracking the raffinate oil in an ethylene steam cracking unit; and reforming the extract oil in a reforming unit. Compared with available technology, the present invention has over 30 % raised arene yield and over 40 % raised ethylene yield.