Question

高分急求英语翻译！

Rerunning of Treated Motor Fuel Distillates
Acidtreated distillates are customarily redistilled after treating for the purpose of producing a finished gasoline with a minimum gum content and the maximum stability with respect to the development of both gum and color in storage.
Sulfuric acid treatment of motor fuel distillate effects de- sulfurization and the elimination of the most undesirable com- pounds with respect to gum formation and instability. The major portion of the materials eliminated is removed in the sludge which is separated after contacting the distillate with acid. However, appreciable quantities of sulfur compounds from the treating reactions are dissolved in the distillate.
Fortunately these compounds have boiling points generally above the motor fuel range and can be eliminated from the finished gasoline by distillation, yrovided sufficient residual liquid remains to hold these materials in solution. For these reasons, raw didillates which are to be acidtreated are "over- cut" in end point; for example, if the finished gaaoline is to hare an end point of 400" F., the raw distillate may be cut to an end point of 450" F. or higher. The material boiling between 400" and 450" l?. is separated as a bottoms in the rerun operation and serves as a medium in which dissolled sulfur compounds are segregated.
To accomplish the desired results in rerunning, it is neces- sary to minimize polymerization of unsaturated hydrocarbons and thermal decomposition of the sulfur compounds. This requires low process temperatures and short time under temperature. No general criteria have been established ac: to the limiting temperatures to which treated distillates may be heated without detrimental effects. The limiting temperatures are dependent upon the source of the original crude. type of cracking operation, method of acid treating, etc. Temperature limitations imposed by various major refiners vary from 250' to 400" F. or higher. The niaximuni pel- missible process temperature has a marked bearing upon the economics and design of the rerun equipment. The rerun operation is thus intimately associated with treating, and the two are preferably considered together in projecting newdesigns. Studies of this nature have shown in some instancesthat a complete revision of the acidtreating procedure, combined with a rerun operation under proper conditions, willpay out more rapidly than a new rerun unit alone.
最好不要用翻译软件！

Answer 1

汽车燃料的治疗重新运行馏分
Acidtreated馏分习惯上蒸后的生产与最低胶内容和尊重的，对彩色胶和储存稳定发展的最大成品汽油治疗的目的。
硫酸酸处理的汽车燃料馏分油效果解脱硫和最不受欢迎的COM磅就消除牙龈形成和不稳定。该材料的主要部分是在消灭这是与酸接触后蒸馏分离污泥中删除。然而，从数量可观的含硫化合物的治疗反应是溶解在馏分油。
幸运的是这些化合物的沸点一般都高于汽车燃料的范围分，可以从通过蒸馏成品汽油消除，yrovided足够的剩余液体仍持有这些材料在溶液中。基于这些原因，这是原始didillates要acidtreated是“过度削减终点”，例如，如果完成gaaoline是野兔400“号的原料馏分油可能被削减到终点终点450“号或更高。该材料沸腾400“和450”升？。分隔在底部的重播行动，并作为教学语言，即dissolled服务是含硫化合物分离。
为了完成在重新运行预期的效果，它是neces -萨利，以尽量减少不饱和烃和硫化合物的热分解聚合。这就要求低工艺温度和温度下短的时间。没有一般标准已建立交流：对温度的限制，可处理的馏分油加热无不利影响。的极限温度后，原来的原油来源的依赖。打击行动的类型，酸的方法治疗，等各大炼油厂施加的限制有所不同温度从250'至400“号或更高。像素的niaximuni - missible过程的温度有一个后重新运行经济性和设计的显着影响设备。从而重新运行操作与治疗密切相关，其中两个是最好考虑在预测newdesigns在一起。这种性质的研究已在某些instancesthat表现出的acidtreating程序全面修改，以适当的条件下，willpay重新运行操作相结合出的速度比单独一个新的单位重新运行

Answer 2

这个难、