47 results about "Tert-Amyl methyl ether" patented technology

The invention relates to a combined process of catalytic gasoline selective hydrogenation process and light gasoline etherification. The process innovatively unites catalytic gasoline selective hydrogenation hydrogen and light gasoline etherification as one. The selective hydrogenation process is employed for removing sulfur and nitrogen; the separated light gasoline component with high tertiary olefin content is then subjected to a methanol etherification with methanol to generate tert-amyl methyl ether, thus effectively reducing the olefin content of the light gasoline component and increasing octane number of the light gasoline. The sulfide removal rate is greater than 90%; dialkene is almost removed; and after etherification unit, the octane number can be increased by 2-6 units. The combined process shortens the process, saves equipment investment cost and operation cost and reduces land occupation of equipment.

The invention discloses a coal chemical phenol-containing waste water dephenolization method, which comprises the following steps of: using tert-amyl methyl ether as a main extractant, extracting the coal chemical phenol-containing waste water and the extractant in an extraction tower or a multistage mixing clarifier to obtain a solvent phase and a raffinate phase; carrying out rectification on the solvent phase, and recovering a solvent and crude phenols; distilling the raffinate phase, and recovering a residual extraction solvent; and recycling the recovered extractant. In comparison with the prior art, the method provided by the invention has advantages of simple process flow, less equipment investment, low energy consumption of solvent recovery and high phenol recovery efficiency; in addition, petroleum hydrocarbon and tar pollutants can be simultaneously and efficiently removed. By the adoption of the method, subsequent biochemical load can be more effectively mitigated so as to guarantee standard discharge or reuse of waste water.

The invention discloses a method for preparing tert-amyl methyl ether. The method is as follows: raw materials of 2-methylbutene and methanol, a catalyst of a heteropolyacid / titanium based composite oxide as, volume space velocity of 2-methylbutene of 0.5-5.0 / h, molar ratio of methanol and 2-methylbutene of 1.0:1.0-5.0:1.0, reaction temperature of 80-200 DEG C, and reaction pressure of 0.5-5.0 MPa. Compared with the prior art, the method has the advantages of long running period, good stability and high selectivity of tert-amyl methyl ether.

The invention relates to a combined process for comprehensively utilizing a partial hydrogenation C5 fraction, in particular to a method for producing tert amyl methyl ether (TAME), cyclopentadiene, cyclopentane and pentane from the partial hydrogenation C5 fraction raw material through a combined process of a series of rectification and reaction. The combined process comprises etherification reaction, hydrogenation reaction and a multi-tower continuous rectification process. According to the combined process for comprehensively utilizing the partial hydrogenation C5 fraction, the partial hydrogenation C5 fraction with low added value can be used for simultaneously producing the four main products with high added value, i.e., the TAME, the cyclopentadiene, the cyclopentane and the pentane, the product purity can generally reach over 98 percent, and all the byproducts can be used as fuel.

The invention discloses methanol gasoline for a vehicle and a preparation method thereof. The methanol gasoline is prepared from the following raw materials in parts by weight: 60-70 parts of methanol, 15-25 parts of 90# gasoline, 10-15 parts of dipropylene glycol methyl ether acetate, 5-10 parts of tert amyl methyl ether, 5-10 parts of dimethyl carbonate, 4-8 parts of diethylene glycol dimethyl ether, 3-6 parts of 2,2-dimethoxypropane, 1-2 parts of ferrocene, 0.5-1.5 parts of methyl cyclopentadiene tricarbonyl manganese, 0.8-1.4 parts of 2,5-di-tert-butyl hydroquinone, 0.4-0.8 part of glycerol monolaurate, 0.5-1 part of sodium petroleum sulfonate, 0.3-0.6 part of N-Polyoxyethylated-N-tallow-alkylamine, 5-10 parts of wood tar, 3-6 parts of isopropanol, 2.5-4.5 parts of fish meal, 2-3 parts of bone meal, 1-2 parts of stearic acid and 0.5-1 part of urotropine. The methanol gasoline disclosed by the invention is favorable in combustion characteristic, high in utilization ratio, favorable in anti-detonating quality, low in corrosivity, high in safety and reliability, energy-saving and environment-friendly, can be used instead of any of 90#, 93#, 97# and 98# gasoline for a vehicle, is novel environment-friendly alternative fuel, and can reduce pollutant emission and carbon emission; and the combustion emission of the methanol gasoline meets the standards in Europe and America. The methanol gasoline has excellent economic benefits and far-reaching social benefits.

The invention discloses a method for preparing tert-amyl methyl ether. The method is as follows: 2-methylbutene and methanol as raw materials, a heteropolyacid / aluminium based composite oxide as a catalyst, volume space velocity of 2-methylbutene of 1.0-5.0 / h, molar ratio of methanol and 2-methylbutene of 1.0:1.0-3.0:1.0, reaction temperature of 60-120 DEG C, and reaction pressure of 0.05-3.0 MPa. Compared with the prior art, the method has the advantages of long running period, good stability and high selectivity of tert-amyl methyl ether.

The invention relates to method for preparing tert-amyl methyl ether by etherifying C5 raffinate. A catalyst consists of a major catalyst, an aid and an acid carrier, wherein the major catalyst is one or more of Ru, Rh, Co, Mo, Ni or a corresponding soluble salt thereof; the content of the major catalyst is 0.1-10 percent based on the weight of the catalyst; the aid is one or more of third or fourth main family elements in a periodic table of elements; the content of the aid is 0.05-1 percent based on the weight of the catalyst; the carrier is macroporous networked styrene-series acid cation exchange resin; the carrier is treated through an alcohol solution; a major catalyst soaking liquid is an acid solution; the H<+> concentration is 0.1-2.0 mol/L; and the catalyst has the advantages of high activity, high functionality, and the like.

The invention discloses high-performance alcohol-based fuel which is prepared from the following components in parts by weight: 60 to 70 parts of methanol, 2 to 4 parts of isopropanol, 3 to 6 parts of allyl alcohol, 1 to 3 parts of isooctane, 2 to 4 parts of isobutyl ketone, 1 to 3 parts of ditertbutyl paracresol, 1 to 3 parts of polyoxymethylene dimethyl ether, 0.4 to 0.8 part of tert-amyl methyl ether, 2 to 5 parts of hydrogen peroxide, 0.4 to 0.6 part of potassium chlorate, 0.01 to 0.03 part of ammonium cerous sulfate, 0.02 to 0.04 part of isobutyllithium, 0.3 to 0.7 part of glycerinum, 0.01 to 0.03 part of sodium lignin sulfonate, 2 to 4 parts of a complexing agent, 0.2 to 0.5 part of ethyl acetate, 0.4 to 0.7 part of nano-magnesium powder and 0.2 to 0.4 part of nano-ferric oxide. The high-performance alcohol-based fuel has the characteristics of high combustion property, low corrosivity, high stability and the like, and is fuel with a development prospect.

A vehicle fuel composition comprises: a light or low-carbon hydrocarbon or pentane fraction; a non-lead anti-knocking agent including methyl tert-butyl ether, tert-amyl methyl ether, anhydrous methanol and anhydrous ethanol; a fluorocarbon cation surfactant and/or a fluorocarbon non-ionic surfactant; which are thoroughly blended to obtain a motor fuel having a research octane number of more than ninety for enhancing anti-knocking property and also for minimizing carbon accumulation in a combustion engine system.

The invention relates to a solvent de-waxing method. According to the invention, a solvent is added into a fused de-waxing raw material, an obtained mixture is cooled to a de-waxing temperature, a multi-point dilution method or a one-step full dilution method is employed for addition of the solvent, and filtration and separation are carried out at the de-waxing temperature so as to obtain de-waxed oil and de-waxed cerate, wherein the solvent is a mixture of tert amyl methyl ether and C3-C6 aliphatic ketone. Compared with the prior art, the method provided by the invention can improve a filtration speed of solvent de-waxing and yield of the de-waxed oil.

The invention belongs to the technical field of fuel additives and particularly relates to an alcohol-based fuel additive for vehicles. The alcohol-based fuel additive is prepared from raw materials in parts by weight as follows: 10-25 parts of a cosolvent, 5-15 parts of dialkyl diphenylamine, 3-11 parts of glycerol dimethacrylate, 2-9 parts of glyceryl polyoxyethyl ether, 2-8 parts of dioctyl phthalate, 2-7 parts of furan formaldehyde, 1-8 parts of carboxymethyl cellulose, 1-7 parts of methyl methacrylate, 1-5 parts of tert-Amyl methyl ether and 1-6 parts of diphenyl cresol phosphate. With the adoption of the alcohol-based fuel additive for the vehicles, fuel is enabled to be combusted sufficiently, the combustion efficiency is improved, fuel is saved, the cost is reduced, and effects of emission reduction and environment protection are realized.

The invention discloses dimethoxymethane gasoline based on various non-national-standard gasoline components. The dimethoxymethane gasoline comprises the following components by weight percent: 10-30% of vehicle fuel for blending combustion, 40-70% of naphtha and 10-30% of high-octane gasoline component, wherein the vehicle fuel for blending combustion comprises 88-95 parts of dimethoxymethane, 5-8 parts of tert-amyl methyl ether and 2-5 parts of functional additive; the functional additive comprises 50-65 parts of polyisobutylene succinimide, 30-40 parts of fatty acid and 5-10 parts of cerium oxide. By combining the dimethoxymethane compound of the fuel for blending combustion, naphtha and the high-octane gasoline component, the usage amount of the gasoline components is reduced, the cost is saved, the thermal utilization rate of the fuel oil is increased, emission of harmful gases in the vehicle exhaust is reduced, and the defects existing when dimethoxymethane independently serves as the fuel for blending combustion are overcome.

The invention discloses a light gasoline catalytic rectification etherification device and technique. The device comprises a pre-reactor, a catalytic reaction rectification tower, a methanol extraction tower and a methanol refinement tower. The technique comprises the following steps: a light gasoline raw material containing active olefins is mixed with methanol in the pre-reactor to perform etherification reaction so as to generate TAME (tert amyl methyl ether); the reaction product is pumped to the catalytic reaction rectification tower; new methanol is supplemented into the tower, so that the active olefins perform etherification reaction with the methanol, wherein the total conversion rate is 99.5% above; under the rectifying action, the TAME and other heavy components are distilled off from the tower bottom, the unreacted active olefins, methanol and other light components are distilled off from the tower top and enter the methanol extraction tower; and water enters via the upper part of the methanol extraction tower, the methanol water solution is discharged from the tower bottom and enters the methanol refinement tower, the methanol is discharged from the top of the methanol refinement tower and returns to the pre-reactor, and the water from the tower bottom returns to the upper part of the methanol extraction tower, thereby implementing recycling. The method is simple, has the advantages of favorable effect and high conversion rate of active olefins, and is beneficial to lowering the olefin content and enhancing the octane number of the oil product in the field of etherification of light gasoline.

The invention relates to a process for preparing high-octane high-cleanness gasoline with methanol by using a multi-element catalysis method. The process comprises the following steps of: producing gasoline and light hydrocarbon in a reactor under the action of a catalyst by using methanol and water as the raw materials; carrying out catalytic reaction continuously on the light hydrocarbon in another reactor, selectively superposing the gasoline and concentrating isobutene and isoamylene; carrying out catalytic reaction on the concentrated isobutene and isoamylene and methanol in a third reactor to produce methyl tert butyl ether (MTBE) and tert amyl methyl ether (TAME); and further carrying out catalytic reaction on the remained hydrocarbon components in a fourth reactor to produce gasoline. The gasoline produced by the multi-element catalysis method has an octane value of more than 95, and is called as a high-quality and high-cleanness gasoline in the 21st century because the gasoline is sulfur-free, nitrogen-free and heavy-metal-free and the oxygen content is greater than 2%. The process is reliable, the operation is simple, continuous production is realized, the operation energy consumption is remarkably reduced, the public engineering order is lowered, and the gasoline is environment-friendly. Thus, the process has remarkable practicability, huge economic benefit and a wide application prospect.

The invention discloses a method for improving the content of 2-methyl-2-butylene and particularly relates to a method for improving the content of 2-methyl-2-butylene in isopentene by taking tert-amyl methyl ether as a raw material and adopting methods for ether reaction, isomerization reaction and purification by rectification. Through the technical processes, the mass ratio of 2-methyl-2-butylene to 2-methyl-1-butylene in isopentene can be improved to (8-14):1, so that the quality requirements for subsequent processing are met.

The invention discloses a tert-amyl methyl ether preparation method and a light gasoline modification method. The tert-amyl methyl ether preparation method comprises that methanol and isopentene contact an etherification catalyst under an etherification reaction condition to obtain the reaction product containing tert-amyl methyl ether, wherein the etherification catalyst is a polymer supported ionic liquid catalyst, and has a structure represented by a formula (I) or a formula (II). With the method of the present inventin, the tert-amyl methyl ether preparation reaction can maintain the highreactivity.

The invention relates to a paper and paperboard surface finishing agent. The paper and paperboard surface finishing agent contains 10-25% of linseed oil, 3-7% of sodium hydroxide, 8-10% of calcium hydroxide, 10-15% of addition polymerization resin, 5-10% of alkene unsaturated acid, 10-17% of triethanolamine butyraldehyde, 10-15% of tert-amyl methyl ether, 12-25% of isobutanol, 5-15% of polyoxyethylene nonylphenol ether and 10-25% of a water-soluble cellulose derivative, and the water-soluble cellulose derivative is composed of an etherified sulfomethyl group and an acidified sulfoethyl group. A molar ratio of the etherified sulfomethyl group to the acidified sulfoethyl group is 1:2-1:4. The water-soluble cellulose derivative has the dual effects of moisture resistance and mildew resistance, and has a wide, efficient and lasting sterilization and inhibition ability on moulds and yeasts.

The invention discloses dimethoxymethane gasoline based on a national standard gasoline component. The dimethoxymethane gasoline comprises the following components in percentage by weight: 10-30% of blending combustion fuel for a vehicle and 70-90% of national standard gasoline, wherein the blending combustion fuel for the vehicle comprises 88-95 parts of dimethoxymethane, 5-8 parts of tert-amyl methyl ether and 2-5 parts of functional additive, and the functional additive comprises 50-65 parts of polyisobutylene succinimide, 30-40 parts of fatty acid and 5-10 parts of cerium dioxide. According to the invention, a blending combustion fuel dimethoxymethane composition is added into the component of the national standard gasoline, so that the usage amount of the national standard gasoline is reduced, the heat utilization ratio of the fuel is increased, the emission of harmful gases in automobile exhaust is reduced, and the defect existing when dimethoxymethane is independently used as the blending combustion fuel is overcome.