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["汽油加하uxtap烯烃与辛烷值的关系"]

2019-02-12View Original

Thread Content

"가스oline汽油加氢中,烯烃是否主要存在于轻汽油中,芳烃主要存在于重汽油中?烯烃、芳烃和辛烷值有无具体的量化关系?也就是说烯烃芳烃的含量可以产生多少的辛烷值?有一一对应的关系么?"
Reply #22019-02-12
"이히辛烷(22异辛烷(2,2-三甲基戊烷)的抗爆性较好,辛烷值给定为18。正庚烷的抗爆性差,给定为0。汽油辛烷值的测定是以异辛烷和正庚烷为标准燃料,按标准条件,在实验室标准单缸汽油机上用对比法进行进行。比如,88汽油,他的的辛烷值就是88,即等同于88%异辛烷及2%正庚烷之混合物的爆震程度。"
Reply #32019-02-12
"품명辛烷值愈高,代表抑制引擎震爆能力愈强,"
Reply #42019-02-12
"가스oline的原料来源一般可以确定加氢前的原料的大约组成情况,但由于原油类型、初级加工方式的不同,加氢汽油的原料组成也是有差别。这种情况应该通过加氢原料的族组成分析来确定原料油中的烯烃和芳烃的含量及分布情况。对于汽油这种组分很多的混合物,其辛烷值很难通过某几种组分进行量化,因为决定汽油的烷值的因素还有其他共存的烃。一般汽油加氢过程中,加氢产品会损失一点辛烷值,这与加氢深度有关。您应该去看一些石油产品加工的基础资料和油品分析的书才好。"
Reply #52019-07-29
"烯烃主要存在于轻汽油中。因烯烃的辛烷值较高,为了尽可能的降低加氢汽油辛烷值损失,所以尽可能多的采出轻汽油。"

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