查询词典 coke ratio

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.

通过优化操作条件、降低反应温度、增大剂油比和采用有效降烯烃催化剂等措施可以有效的降低催化裂化汽油的烯烃含量，提高催化裂化汽油的产品质量，达到我厂汽油产品升级换代的目的。

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.

研究结果表明：催化裂化装置的原料的变化直接影响到催化汽油的烯烃含量；可以通过优化催化装置的操作条件来降低催化汽油中的烯烃含量，其中通过提高催化剂平衡活性、控制反应深度、增加汽油回炼量、汽油深度稳定可以降低催化汽油烯烃含量，优化工艺条件对降低催化汽油烯烃含量有较大作用，汽油烯烃含量由60％降至50％左右；降低反应温度有利于降低催化汽油的烯烃含量，当反应温度的提高，热裂化反应速度提高的幅度大于催化裂化反应速度提高的幅度，汽油烯烃含量增加；剂油比的提高有利于降低催化汽油的烯烃含量，转化率提高，液化气产率提高，汽油收率先增加后略有下降，焦炭产率增加，氢转移反应指数提高，汽油烯烃含量下降；反应时间对产品分布及汽油烯烃含量有影响，增加提升管反应时间，液化汽、汽油产率提高，干气和焦炭产率增加。

In commercial units, increasing C/O ratio can compensate the active loss of coked catalyst. Therefore, maximum profit can be obtained by control optimal residual coke content in the catalyst.

在实际工场再生触媒因残碳存在，使活性降低，可藉提高C/O比率来弥补；因此在不完全燃烧的再生模式下，控制适当的焦碳含量，有益於整体操作效益。

The experimental result showed that with the increase of weight ratio of catalyst to oil,yields of off-gas,liquidized petroleum gas and coke increased,but yields of gasoline and diesel oil dropped;conversion of FCC gasoline was about 94% and its yield firstly decrea...

实验结果表明，随着剂油比的提高，干气、液化气和焦炭收率逐渐增大，汽油和柴油收率逐渐减小，产品的转化率在94%左右，且随着剂油比的升高转化率先减少后增加，当剂油比为14.67∶1时，产品的转化率有最小值；MON和RON随着剂油比的升高而先增加后减少，当剂油比为6.03∶1时，产品的MON和RON有最大值，分别为83.50%和96.83%；随着水油比的加大，汽油、柴油和焦炭收率与产品的MON和RON逐渐减少，干气和液化气收率变化不大，而&兰炼&FCC汽油的转化率在94%左右。

Based on the recent practice on controlling coal ash content to improve coke quality, the possibility of increasing the ratio of weakly caking coal in blends is studied.

研究表明，在宝钢配煤中，当弱粘比由47％增加到63％，焦炭的冷强度几乎保持同一水平，同时由于增加了弱粘煤配比，相应增加了焦炭中抗高温碱侵蚀能力强的各向同性结构，有利于在高炉中保持焦炭结构、缓解焦炭劣化。

The result indicates that the emission ratio of chlorine and yield of coke are relative to pyrolysing temperature, percentage of WP and time of constant temperature.

结果表明，氯的释放率及焦炭产率与热解温度、废塑料的加入量、恒温时间有关。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失