Changes to FCC gasoline cutpoints and the possibility of blending by dilution (adding components such as ethers or alkylate) can be used to meet a sulfur or olefin specification for individual gasoline grades if a preliminary blend is already close to the specification and the refinery desires to increase total gasoline production.

對FCC 汽油cutpoints 的變動和混和的可能性由稀釋(增加組分譬如以太或烷基化)可能使用符合各自的汽油等級的硫磺或烯烴規(guī)格如果初步混合已經(jīng)是緊挨規(guī)格和精煉廠渴望增加總汽油生產(chǎn)ww69视频免费观看。

At least, there are three things needed to do: the improvement of gasoline processing, the study of new additives which can improve the antiknock properties of gasoline, and the quality control on gasoline production.

因此，汽油生產(chǎn)加工工藝的改進天天色天天操综合网，提高汽油抗爆性能的添加劑的研究，以及汽油生產(chǎn)中的質(zhì)量控制成為亟待解決的重要問題人人干干。

The combined scheme of selective hydrogenation and etherization of FCC's light gasoline and hydrogenation desulfurization of heavy gasoline can make gasoline quality meet EURO IV Standard, indicating that this combined scheme is a feasible scheme selection for gasoline quality updating and upgrading.

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The catalyst of RFG-DQ and DOCO(1) can both reduce the olefine content of gasoline dramatically, with the yield of LPG ,diesel and coke reduced and the yield of gasoline increased, as well as octane number of gasoline reduced more greatly.The olefine content of gasoline can be effectively reduced by optimizing the operation condition, lowering the reaction temperature, increasing the catalyst-to-oil ratio and using catalyst, which can improve the gasolines quantity and upgrade the gasoline.

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Study result suggest: The change of stock in RFCCU directly affect gasoline content. Gasoline content can be reduced through increasing the equilibrium activity of catalyst, controlling reaction level, increasing recirculating rate of gasoline and stability of gasoline level. Conclusions drawn from experiment is that optimization of operating condition has great effect on lowering olefine content of gasoline which can be reduced from 60% to 50%.Reducing reaction temperature is useful for lowering olefine content of gasoline, when the reaction temperature is raised, thermal cracking rate is higher than catalytic cracking rate, so that olefine content is increased. Raising catalyst-to-oil ratio is good for lowering olefine content. With conversion rate increased, the yield of LPG and coke is raised, the yield of gasoline is increased firstly and then decreased slightly, hydrogen transfer index is increased, so the olefine content is decreased.

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Saving gasoline is the most distinct peculiarity of this new type of sport car.

柴油 D毛片一级一区二区三区四区91。能量省油是這種新型的跑車最顯著的特點。發(fā)音記憶： gasoline→要省著用汽油→汽油

Therefore, the need for a gasoline engine when to control the spark plug ignition system. This system requires an accurate control of spark plugs and spark discharge energy of the moment, be able to ensure the normal gasoline engine. gasoline engine fuel supply system and ignition system is a high proportion of the gasoline engine fault location.

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E. , gasoline including catalytic cracking gasoline, reforming gasoline and some commercial gasoline and diesel oil including first-cut, second-cut and third-cut diesel oil, were studied for their RON and flash point, respectively.

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This article analyzed characteristics and development trend of FCC gasoline in China, introduced the characters and plant effects of OCT-M and FRS FCC gasoline selective hydrodesulfurization process, especially the commercial application effect of the production of States Ⅲ and Ⅳ regulation gasoline. The commercial test results showed that OCT-M and FRS process were mature and credible, and had the characteristics of low pressure, low investment, convenient operation, low H2 consumption and high liquid yield. OCT-M and FRS process could offer refineries optional economical and flexible measure to produce States Ⅲ and Ⅳ regulation clean gasoline.

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