1219results about How to "Boost octane" patented technology

The invention provides a sorbent used for reducing the content of sulfur in light hydrocarbon oil. According to weight percentage, the sorbent comprises 1-30 percent of phosphorus-modified rare earth faujasite, 5-40 percent of active metal oxide and 30-94% of carrier; wherein, the carrier comprises alumina and zinc oxide; the rare earth faujasite is modified by phosphorus and is pre-formed into porous heat-resistance solid grains together with carrier mixture; subsequently, the active metal oxide is led into the solid grains, thus preparing the sorbent; the light hydrocarbon oil raw material containing the sulfur and hydrogen donor enter a reactor filled with the sorbent; the materials are separated after reaction; the reaction products are sent to a subsequent separation system so that the product is separated; the sorbent to be regenerated after reaction is stripped, burned and regenerated; and the regenerated sorbent is reduced by the hydrogen donor and subsequently returns to the reactor so as to be circularly used. The sorbent realizes that the sulfur of light hydrocarbon oil is deeply removed, and simultaneously, the octane number of the outcome gasoline is higher, while thebenzene content is lower and the strength is higher.

Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a knock control fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, and CMCV, are coordinated with the direct injection to reduce torque and EGR transients.

The invention provides a process method for making hydrodesulfation and alkene reduction on the bad gasoline, like all-fractional FCC gasoline, etc. Under the conditions of hydrogen gas existence and temperature gradually rising, to contact with three catalysts forms three reaction regions. The first reaction region has lower temperature and uses hydrofining catalyst and mainly eliminates di-alkene in the gasoline; the second reaction region has higher temperature and uses selective hydrodesulfation catalyst and mainly eliminates organic sulfide and some alkenes; the third reaction region has the highest temperature, uses gasoline modifying catalyst and makes the modifying reactions including aromatization, isomerization and benzene alkylation, increasing octane number of gasoline and improving product quality. It has the advantages of simple flow, being easy to operate, fully using reaction heat, prolonging the operating cycle of catalyst, high liquid yield, low hydrogen consumption.

The invention discloses a catalytic conversion method for a hydrocarbon oil raw material. The hydrocarbon oil raw material contacts the catalytic cracking catalyst in a catalytic cracking reactor, the reaction oil gas and a spent catalyst are separated, then the spent catalyst is made steam stripping and regeneration and then returns to the catalytic cracking reactor for repeated use, the reaction oil gas is fractionated to obtain dry gas, liquefied gas, gasoline, light circulating oil, heavy circulating oil and heavy oil; the light circulating oil and any diesel fraction are cut into the light fraction of the light circulating oil and the heavy fraction of the light circulating oil; the heavy fraction of the light circulating oil is mixed with the heavy circulating oil and contacts the hydrogen and the hydrorefining catalyst, the reaction effluent is separated to obtain gas, naphtha and hydrogenated diesel, the hydrogen is reclaimed and then is circularly used; the light fraction of the light circulating oil independently or the light fraction of the light circulating oil along with the hydrogenated diesel returns to the catalytic cracking reactor. The method converts the catalytic cracking circulating oil into the gasoline with low olefin content and high octane value, and improves the yield of the gasoline and the yield of the propylene.

The invention relates to a method for producing high-octane petrol, which comprises the following steps: introducing raw oil into a catalytic cracking reactor to be contacted with a catalyst and react under the catalytic cracking reaction condition; separating the reaction oil gas and the catalyst to be generated which is reclaimed after steam stripping and regeneration; introducing the reaction oil gas into a subsequent fractionation part; and separating out heavy petrol and light diesel fuel fractions with the distillation range of between 100 and 300 DEG C by the fractionation part, and pouring the fractions with or without hydrogenation into the catalytic cracking reactor for freshening. By adopting the method, a common catalytic cracking unit and a common catalyst can be used, the prior device is unnecessary to be changed significantly, and the heavy petrol and the light diesel fuel fractions are introduced back into the catalytic cracking reactor respectively for freshening with major reactions of chain scission reaction of arene lateral chains and transalkylation reaction so as to improve the petrol yield and the octane number.

The invention provides a coupling method of catalytic cracking gasoline desulfurization. The coupling method comprises the following steps: cutting gasoline raw materials into light fractions, medium fractions and heavy fractions; carrying out extractive distillation on the medium fractions by an organic solvent to obtain olefin-contained raffinate and extracts which contain sulfide and arene; separating the organic solvent in the extracts to obtain extraction oil; carrying out selective hydrodesulfurization on the extraction oil and the heavy fractions to obtain the desulfurization heavy fractions; mixing the light fractions, the raffinate and the desulfurization heavy fractions to obtain desulfurization gasoline, wherein the cutting temperature of the light fractions and the medium fractions is 35 to 60DEG C, and the cutting temperature of the medium fractions and the heavy fractions is 140 to 160DEG C. According to the coupling method of the gasoline desulfurization, the octane value loss of a gasoline product can be obviously reduced, and desulfurization load is drastically lowered while deep desulfurization is realized. The yield of the product is greater than 95%.

A method to reduce sulfur in hydrocarbon oil is that put the petroleum hydrocarbon and desulfuration agent into the fluid bed reactor and react with the fluid medium under following conditions: reaction temperature is 150-150 deg.C, heavy hourly space velocity is 0.1-60 per hour, the weight proportion of the desulfuration aget and cut fraction of gasoline is 3-40, and the reactive pressure is 130-1450 Kpa. The separate the production and desulfuration agent and transfer the production into downstream separation system. Moreover, transfer the desulfuration agent with carbon into regeneration equipment to regenerate after stripping and the regeneration temperature should be lower than 700 deg.C. Additionally, the desulfuration agent can be reused after being cooled down.

This invention relates to a process for the increasing the octane number of a naphtha hydrocarbon feed having a predominantly paraffin content with a germanium-containing zeolite catalyst. The catalyst is a non-acidic germanium zeolite on which a noble metal, such as platinum, has been deposited. The zeolite structure may be of MTW, MWW, MEL, TON, MRE, FER, MFI, BEA, MOR, LTL or MTT. The zeolite is made non-acidic by being base-exchanged with an alkali metal or alkaline earth metal, such as cesium, potassium, sodium, rubidium, barium, calcium, magnesium and mixtures thereof, to reduce acidity. The catalyst is sulfur tolerant. The hydrocarbon feed may contain sulfur up to 1000 ppm. The present invention could be applicable to a feedstream which is predominantly naphthenes and paraffins.

This invention relates to a method for preparing P-modified ZSM-5 molecular sieve. The method comprises: (1) performing heat-exchange on synthesized ZSM-5 molecular sieve with ammonium solution; (2) placing in a fixed bed reactor; (3) heating to evaporate and sublimate phosphorus oxide at 250-600 deg.C; (4) introducing air or inert gas into the fixed bed reactor as the carrier gas, and uniformly depositing phosphorus oxide onto ZSM-5 molecular sieve by chemical vapor deposition to obtain P-modified ZSM-5 molecular sieve. The method can uniformly deposit phosphorus oxide onto ZSM-5 molecular sieve, thus improving the hydrothermal activity and stability of ZSM-5 molecular sieve. The catalytic cracking catalysts with P-modified ZSM-5 molecular sieve as the active component have better catalytic activity and can bring higher olefin yields. The method has such advantages as easy operation, high controllability.

A fluid catalytic cracking process for the preparation of cracked products by contacting in a reactor a hydrocarbon feedstock with a cracking catalyst, wherein the hydrocarbon feedstock comprises a paraffinic feedstock and triglycerides.

The present invention provides a fuel oil additive capable of effectively improving the quality of fuel oils, which comprises an oil-soluble metal salt of organic acid having the general formula MR, where R is an organic acid radical and the corresponding organic acid is a C1-C40 saturated or unsaturated fatty acid, naphthenic acid, aromatic acid or alkylphenol, M is a metal cation and the corresponding metal is an alkali metal, alkali-earth metal, rare-earth metal, transition metal, or the like. The present invention also provides fuel oil products added to the fuel oil additive, including gasoline, diesel oil, kerosene, heavy oil, resid, or the like. The present invention especially provides a gasoline antiknock agent and a gasoline having excellent antiknock property, and this kind of gasoline antiknock agent is characteristic of effectiveness, economy, safety, no environmental pollution, no toxicity to human body, no adverse effect on parts of automobile engine, use convenience, and the like.

A method to reduce sulfur in hydrocarbon oil is that put the petroleum hydrocarbon and desulfuration agent into the fluid bed reactor and react with the fluid medium under following conditions: reaction temperature is 150-500 deg.C heavy hourly space velocity is 0.1-60 per hour, the weight proportion of the desulfuration agent and cut fraction of gasoline is 3-40, and the reactive pressure is 130-1450Kpa. Then separate the production and desulfuration agent and transfer the production into downstream separation system. Moreover, transfer the desulfuration agent with carbon into regeneration equipment to regenerate after striping and the regeneration temperature should be lower than 700 deg.C. Additionally, the desulfuration agent can be reused after being cooled down.

A process for deeply hydrorefining poor-quality gasoline includes such steps as removing biolefine from FCC full-fraction gasoline at lower temp, and modifying (arylisomerizing) and hydrodesulfurizing at higher temp. The hydrodesulfarizing catalyst is the hydrorefining catalyst containing copper oxide and/or zinc oxide.

The present invention provides for the use of coal liquid fuels blended with alcohols such as ethanol, as an alternative to gasoline and other fuels. The coal liquids are obtained by distilling coal tar, or by solvent extraction of coal. A further aspect is a solvent extraction process to create coal liquids to be used as a petroleum substitute. In addition the steps of delayed coking, hydrothermal cracking, hydrodelalkylation, and catalytic cracking and other refining techniques can be used to modify the aromatic coal liquids, making them more aliphatic and hence more similar to petroleum. A preferred embodiment of the coal liquid gasoline substitute is comprised of 85% ethanol and 15% coal-derived counterparts. It is a further object of the present invention to provide a method of solvent extraction for coal liquids to be processed for use as a petroleum replacement

The invention provides a catalysis conversion method used for producing high octane gasoline; the distillate raw material with the distilling range of 160-260 DEG C contacts normal catalytic cracking catalyst, so as to carry out the cracking reaction inside a fluidized bed reactor under the conditions of 400-750 DEG C of temperature, 0.1-600h<-1> of weight hourly space velocity, 0.10-1.0MPa of pressure, 1-120 of weight ratio of catalyst to raw material and 0.05-1.0 of weight ratio of water vapour to raw material; a spent catalyst and reaction oil gas are separated, and the spent catalyst is returned to the reactor after regeneration; the reaction oil gas is separated so as to gain the object outcome: high octane gasoline. The method improves the octane number and yields of the gasoline and generates the byproducts: small molecule alkene such as ethane and propylene.

A process for the production of C8 and higher carbon number alkene oligomers by the oligomerization of light olefins to heavier olefins is improved by the addition of heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins extends the catalyst activity and improves the catalyst life. The non-reactive paraffin stream may be recycled through the process with minimal losses and make-up.

A process for decreasing olefine content of poor gasoline includes a conventional catalytic cracking step for heavy oil performed in lift tube reactor and a catalytic converting step for upgrading the poor gaosline with high olefine content performed in the lift tube reactor. It is characterized by that in two steps a common catalyst generator and a same catalyst are used. It can decrease olefine content by 15-50 % and S content by 10-30% and increase RON by 0.2-2 units.