153results about How to "High acid strength" patented technology

The present invention belongs to the field of heavy oil and residual oil hydrotransforming technology. The heavy oil and residual oil hydrotransforming catalyst has siliceous alumina carrier, relatively strong acidity and especially protonic acid amount higher than that in available residual oil hydrotransforming catalyst. The siliceous alumina carrier is prepared through one colloid forming process, during and after which silicon is added to make alumina possess more strong acid centers and ideal pore structure. The catalyst of the present invention is used in the hydrotransforming treatment of heavy oil, residual oil and other inferior oil material.

Method and article for providing a rapid, broad spectrum bacterial control, and a rapid and persistent antiviral control on an inanimate surface is disclosed. In the method, a compound or composition capable of lowering surface pH to less than about 4 is applied to the surface, and preferably is allowed to remain on the surface, and the nonvolatile components of the composition can form a barrier film or layer on a treated surface.

A process for improving the acid intensity stability of solid acid catalyst containing heteropoly acid or its salt (0.5-100 wt.%) features that said heteropoly acid or its salt has central atom (P or Si) and coordinating atom chosen from W, Mo and V, and there is water in reaction atmosphere.

The invention relates to the making of a solid super strong acid using dual hydrolysis compounded acidic oxide as the center. In this way, it can realize high degree diffusion, significantly improved acid, activeness and option with reduced cost.

A catalyst for lightening heavy arylhydrocarbon and transferring alkyl with high transform rate and low cost is prepared from the beta-zeolite and mordenite symbiotic molecular sieve (10-80 Wt%) and at least one inorganic adhesive chosen from gamma- Al2O3, alpha-AlO(OH), SiO3, silicon aluminum oxide, bentone, kaolinite, diatomite and montmorillonite through ammonium salt exchange to said symbiotic molecular sieve, calcining to become hydrogen-type symbiotic molecular sieve, mixing it with said adhesive, shaping, drying, and calcining.

A method of providing a rapid, broad spectrum bacterial control, and a rapid persistent antiviral control on a surface, and particularly a mammalian skin surface, is disclosed. In the method, a compound or composition capable of lowering skin pH to less than about 4 is applied to the skin, and preferably is allowed to remain on the skin.

The invention discloses a technology for catalytically treating VOCs by means of synergy between plasma and mesoporous.The technology comprises the steps that water vapor is introduced into organic waste gas subjected to dust removal by filtration, the water vapor is mixed with the organic waste gas to be uniform to form mixed gas, the mixed gas is sent to a low-temperature plasma mesoporous catalytic reactor through a fan, by means of the plasma oxidation capacity produced in the discharge process of the low-temperature plasma mesoporous catalytic reactor and adsorption and catalytic oxidation of a meoporous catalyst, VOCs gas in the mixed gas is oxidized into harmless CO2 and H2O, and harmless treatment on VOCs in the organic waste gas is completed; the mesoporous catalyst in the low-temperature plasma mesoporous catalytic reactor can be subjected to organic modification with an amino group or a phenyl group or a sulfhydryl group, and transition metals are doped for modification so as to improve the organic waste gas harmless treatment effect.According to the technology for catalytically treating the VOCs by means of the synergy between the plasma and the mesoporous, the adsorption and catalytic oxidation of the mesoporous catalyst and reinforcement of the plasma are combined together to treat volatile organic waste gas, the energy consumption is low, equipment is simple, and the cost is low.

The invention relates to a catalytic cracking diesel oil hydro-upgrading catalyst and applications thereof. The catalyst is composed of VIII-group and VIB-group hydrogenation active metal components and a carrier containing a modified Y molecular sieve, amorphous silicon aluminum and alumina; the modified Y molecular sieve is prepared from a NaY molecular sieve by the steps of carrying out ammonium exchange twice, carrying out roasting one time and carrying out hydro-thermal treatment one time. The catalyst is used for carrying out hydro-upgrading on distillate or catalytic cracking diesel oil at a temperature of 160-380 DEG C. After inferior diesel distillate of which the sulfur content is higher than 1000 mu g/g, the nitrogen content is higher than 1000 mu g/g, the aromatics content is higher than 55v% is treated by using the catalyst, the desulfurization rate and the denitrification rate are both higher than 98%, the cetane number is increased by more than 10 units, and the yield of the diesel distillate is over 98wt%.

The present invention relates to a catalyst used for manufacturing olefin by catalytic pyrolysis which mainly solves the problems of high reaction temperature and low ethylene and propylene yield of the existing catalyst to manufacture ethylene and propylene by catalytic pyrolysis. The present invention better solves the problems by adopting the technical proposal of loading at least two elements selected from rare earth elements, the elements of the VA group, the IIIA group, the IB group or the IIB group in the periodic table of elements on the symbiosis molecular sieves of ZSM-5/ mordenite, ZSM-5/Beta zeolites or ZSM-5/ Y zeolites to compose the catalyst. The present invention can be used for the industrial production of ethylene and propylene by naphtha catalytic pyrolysis.

The invention relates to a method for preparing ethylene propylene by light oil through catalytic cracking, which mainly solves the problems of low catalyst activity, low ethylene propylene yield and high reaction temperature of the current ethylene propylene preparing technique by catalytic cracking. The invention properly solves the problems by adopting the technical proposals that: a ZSM-5/mordenite/analcime intergrown molecular sieve, a ZSM-5/mordenite/zeolite beta intergrown molecular sieve, a ZSM-5/mordenite/zeolite Y intergrown molecular sieve, a ZSM-5/mordenite/MCM-22intergrown molecular sieve or a mixture thereof serves as a catalyst, the light oil with the compositions of C4 to C10 hydrocarbon is adopted as a raw material, and the material is in contact reaction with a catalyst under the conditions of a reaction temperature of between 600 and 700 DEG C, a reaction pressure of between 0.001 and 0.5MPa, a reaction weight space velocity of between 0.1 and 4/h, and water/light oil being present in a weight ratio of 0.5-6: 1, and the method of preparation can be used for the industrial production of preparing the ethylene propylene by the light oil through catalytic cracking.

A fluorine-containing sulfonic acid salt or a compound having a fluorine-containing sulfonic acid group, either of which having a structure represented by the following general formula (1), is provided. Such a salt or compound can act as a suitable photo-acid generator, and can form a resist pattern having excellent sensitivity, resolution and mask-dependence.

[In general formula (1), R represents a substituted or unsubstituted linear or branched monovalent hydrocarbon group having 1 to 30 carbon atoms, a substituted or unsubstituted monovalent hydrocarbon group having 3 to 30 carbon atoms and a cyclic or a partially cyclic structure, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted monovalent heterocyclic organic group having 4 to 30 carbon atoms.]

The invention relates to a method for catalyzing diesel oil to realize hydrogenation dearomatization. The method comprises the following steps that: distillation range of catalyzing diesel oil feeding is at a temperature of between 150 and 380 DEG C; in the presence of hydrogen, a reaction is carried out, the reaction temperature is between 330 and 370 DEG C, the hydrogen partial pressure is between 6 and 9 MPa, the hydrogen-oil volume ratio is between 500:1 and 1,000:1 and the liquid hourly volume space velocity is between 1.0 and 2.0 hr-1; the compositions in percentage by weight of a catalyst are: 15 to 40 percent of amorphous silica alumina, 5 to 30 percent of aluminum oxide, 10 to 40 percent of VIB group metal oxide, 1 to 15 percent of VIII group metal oxide and 5 to 30 percent of Beta/Y molecular sieve; moreover, the total weight of the compositions is counted as 100 percent. The method has the advantages that: diesel oil yield is more than 97 weight percent, and the dearomatization rate of diesel oil reaches to above 60 percent; meanwhile, total desulfurization rate and total denitrification rate reach above 98.5 percent, and product density is reduced by above 0.0400g/cm3.

The invention relates to a method for hydro-dearomatization in catalytic cracking of diesel. According to the invention, Ni and W are adopted as hydrogenation active metal components of a catalyst and modified Y molecular sieve, modified Beta molecular sieve, amorphous silica-alumina and alumina are adopted as carriers of the catalyst, wherein the average crystal size of the modified Y molecular sieve is 100-400nm, the mole ratio of SiO2/Al2O3 is 5-40:1; the relative crystallinity is greater than 90% and the specific surface area is 700-1000m<2>/g; the average crystal size of the modified Beta molecular sieve is 50-200nm, the mole ratio of SiO2/Al2O3 is 50-200:1; the relative crystallinity is greater than 85% and the specific surface area is 700-900m<2>/g. When the method is adopted to process inferior diesel fraction, the desulfurization rate and the denitrification rate are up to more than 97.5%, the dearomatization rate is up to more than 55% and the diesel fraction yield is up to more than 98wt%.

The invention relates to a method for catalytic cracking of naphtha to produce ethylene and propylene which mainly solves the problems that the activity of the catalyst is low, the yield of ethylene and propylene is low and the reaction temperature is high in the prior catalytic cracking to produce ethylene and propylene technology. The invention better solves the problems by adopting the technical proposal that: the raw material is made a contact reaction with the catalyst under the conditions that the intergrowth molecular sieve of ZSM-5 and beta zeolite, the intergrowth molecular sieve of ZSM-5 and Y zeolite or the mixture of the two are taken as the catalyst, the naphtha formed by C4-C10 hydrocarbon is taken as the raw material, the reaction temperature is between 600 and 700 DEG, the reaction pressure is between 0.001MPa and 0.5MPa, the space velocity of the reaction weight is between 0.1 and 4 h <-1>, the weight ratio of water/ naphtha is 1-4:1. The invention can be used in the industrial production of catalytic cracking of naphtha for producing ethylene and propylene.

This invention relates to a method of lighting heavy aromatic hydrocarbon and alkyl transfer. Mainly to solve existing technologies problems, such as low conversion rate and needing precious metal when use solo pure zeolite molecular sieve catalyst, and raw materials and components demanding. This invention takes carbon 9 and above aromatic hydrocarbon as raw material, in the fixed-bed reactor, use symbiotic molecular sieve that contains 10 ~ 80% (weight) of beta zeolite and Mordenite, and 20 ~ 90% (weight) inorganic binder composition of the catalyst that at least one selected from the gamma-Al2O3, thin diaspore, silica, silicon oxide, alumina oxide, bentonite, kaolin, diatomite or montmorillonite. Take reaction under the conditions of the reaction temperature 300 to 500 deg, pressure of 1.0 to 3.5MPa, raw materials weight space velocity of 1.5 ~ 6 .0 per hour, hydrogen and hydrocarbon molar ratio of 2.0 to 6.0 to obtain product containing benzene, toluene and xylene.

A crosslinked polymeric polyvinyl sulfate membrane or crosslinked copolymer polyvinyl sulfate and polyvinyl alcohol membrane, suitable for use in an acid environment, and its use for recovering acid from a feed mixture comprising acid, hydrocarbons and water, the method comprising: processing said mixture using a first polymeric membrane to form a first retentate containing a substantially greater concentration of hydrocarbons than said feed mixture and a first permeate containing a substantially greater concentration of acid and water than said mixture, said first polymeric membrane being selectively permeable to the acid and water over the hydrocarbons found in the mixture, and recovering the first permeate; said first permeate can be processed further using a second water reduction mean to form a first stream containing a substantially greater concentration of acid than said first permeate and a second stream containing a substantially greater concentration of water than said first permeate, said water reduction step may be a second polymeric membrane being selectively permeable to the water over the acid in said first permeate; and recovering said second stream or retentate.

A process for reducing the naphthenic acidity of petroleum oils or their fractions is described, said process comprising providing a hydrocarbon feed 103/203/303 having between 0.1 and 99 wt % of emulsified/dispersed water in oil, said feed containing salts and a content of naphthenic acids measured as TAN between 0.1 and 10 mg KOH/g oil; directing the said petroleum oil feed and emulsified/dispersed water towards an energy emitter device in the microwave range and submitting said feed 103/203/303 in liquid phase, under pressure between 0.7 and 4.5 MPa at temperatures between 50° C. and 350° C. to the microwave radiation, applied in the range of 1 mm to 30 cm to said feed so that the presence of salts, the applied temperature and the high dielectric constant of the water droplets make that the heat is absorbed on the spot by the water and heat said water preferentially to the oil, while the naphthenic compounds at the interface between the droplets and the oil catch said heat; effecting the decomposition of the carboxylic acids responsible for the naphthenic acidity in the petroleum feed at temperatures around 320° C. and generating CO₂; separating with the aid of any known device 106/106′/112/117/208/208′/214/219/310/310′/316/321 any gas phase generated, water and oil; and recovering the hydrocarbon oil stream 108/113/119/210/215/221/312/317/323 having a reduced content in naphthenic acids. The process is designed to be applied to the reduction of naphthenic acids in feeds of petroleum oils and their fractions in the oil production step, in refineries or any industrial installation.

There are disclosed sulfonic acid precursor compositions, as are methods of using these compositions in, for example, photolithography. Other embodiments are also disclosed.

The invention provides a preparation method for a high-efficiency Ce1-xMnxO2-delta solid solution low-temperature denitration catalyst and an application thereof. The preparation method comprises the following steps: uniformly dissolving a certain amount of Mn(NO3)2 and Ce(NO3)3; slowly adding the mixture into a superfluous NaOH solution and completely depositing; transferring into a hydrothermal reaction kettle and performing high-temperature high-pressure reaction; and lastly, performing centrifuging and solid-liquid separation, and cleaning, drying and roasting the acquired solid phase matter, thereby acquiring the Ce1-xMnxO2-delta solid solution catalyst. The preparation method provided by the invention has the advantages that the prepared catalyst is excellent in denitration property and has high activity, high selectivity, wide operating temperature window and excellent water resistance; the required raw materials are rich in resources, cheap and easily acquired; the preparation process is simple and convenient; the energy consumption is low, the pollution is small and the environment is protected; and the catalyst is fit for mass production and has a wide industrial application prospect.

The present invention provides a sulfonium salt used in a resist composition that can give a pattern having a high resolution, especially an excellent rectangularity of a pattern form and a small roughness, while not readily generating a defect, in the photolithography using a high energy beam as a light source; a resist composition that contains the sulfonium salt; and a patterning process using this resist composition, wherein the sulfonium salt is shown by the following general formula (1a),

wherein each of R and R⁰ independently represents a hydrogen atom, or a linear, branched, or cyclic monovalent hydrocarbon group having 1 to 30 carbon atoms which may be optionally substituted by a heteroatom or interposed by a heteroatom.

The invention discloses a rear-earth-containing compound solid super acidic catalyst and a preparation method thereof. The catalyst consists of a ZrO2 carrier containing a sulfate ion, a TiO2 carrier, a nickel oxide and a halide of aluminum, wherein, the content of the sulfate ion is 10 to 20 wt percent, the content of the carrier of ZrO2 is 30 to 50 wt percent, the content of the carrier of TiO2 is 30 to 50 wt percent, the content of the halide of aluminum is 1 to 5 wt percent, the water content in the catalyst is less than 0.1 wt percent, the content of the nickel oxide is 1 to 5 wt percent and the specific surface of the catalyst is 100 to 300 square meters per gram. The halide of aluminum is aluminum fluoride or aluminum chloride or mixture of aluminum fluoride and aluminum chloride. The catalyst made by the invention has low water content, high specific surface, high content of SO4<2->, high acid strength and high catalytic efficiency.

The invention discloses a polysulfo-functionalized heteropolyacid ionic hybrid with multiple heteropolyacid negative ions as well as a preparation method and an application thereof. Two ionic hybrids with novel structures are built by taking aliphatic polyamine, 1,4-butanesultone, phosphotungstic acid and silicotungstic acid as starting materials and carrying out two steps of atomic economic reaction through quaternization and acidification. Positive ions of the ionic hybrid comprise four or three bissulfo-functionalized long-chain quaternary ammonium positive ions; negative ions matched with the positive ions comprise three Keggin configuration silicotungstic acid negative ions or two Keggin configuration phosphotungstic acid negative ions; the prepared ionic hybrid can be used for preparing cyclohexyl carboxylate. The ionic hybrid has high acid strength and high acid content; the ionic hybrid also shows high amphipathy, so the reaction between substrate cyclohexene and organic carboxylic acid is facilitated; the ionic hybrid has the characteristics of atom economy, mild reaction condition, no backflow water diversion, high separation probability of products and high purity.

The invention discloses Gemini dication based acid ionic liquid and a preparation method thereof. The structure of a cation part of the ionic liquid is represented by a formula I, a formula II, a formula III or a formula IV, wherein in the formula I, the formula II, the formula III or the formula IV, m represents 3 or 4, and n represents an integral number of 1-15; and the structure of an anion part is selected from one of CH3(C6H4)SO<3->, C6H4COO<->, CF3SO<3->, CH3SO<3->, CH3COO<->, CF3COO<->, HSO<4->, BF<4->, PF<6->, H2PO<4->, NO<3-> and Cl<->. The preparation method comprises the following steps of: making Gemini bi-heterocyclic alkane react with alkyl sulfoacid inner ester to generate a sulfoacid inner salt; and then making the sulfoacid inner salt react with acid to obtain the ionic liquid. The ionic liquid can be used as a substitute of a traditional liquid acid catalyst and has industrial application prospect.