The olefin conversion of FCC naphtha to produce light olefins over regular carrier catalyst preparated from shape-selective molecular sieve was studied in a regular fixed-bed reactor.
以择形分子筛制备的规整载体催化剂，在规整固定床反应器上，进行催化裂化汽油中烯烃转化产低碳烯烃的裂化反应。
In 1990s, it was found that the dimethyl ether as a super-low pollution fuel can be used to replace diesel oil and liquefied petroleum gas, in addition, it also can be used to prepare light olefin.
90年代发现二甲醚是可以替代柴油的超低污染燃料以及作为液化石油气的代用品；此外，它还可用于制备低碳烯烃。
The olefin content in FCC gasoline can be reduced by etherification of light FCC gasoline, meeting the requirements of environmental regulations.
采用催化裂化轻汽油醚化工艺可减少催化裂化汽油的烯烃含量，满足环保法规对汽油质量的要求。
Olefin is strong and resists moisture while acrylic is light and can resist sunlight.
烯属烃强韧抗湿气；压克力则又轻又抗日光。
The method has short starting period and light catalyst damage degree, which can be used for low-carbon olefin industrial production.
该方法开车周期短，催化剂损害程度轻，可用于低碳烯烃的工业生产中。
The light constituents flow upward to the catalyst zone, where the selective hydrogenation of butadiene is carried out together with desulfurization and some olefin saturation.
轻组分向上流至催化剂段，在那里丁二烯选择性加氢、脱硫和一些烯烃的饱和同时进行。
The light constituents flow upward to the catalyst zone, where the selective hydrogenation of butadiene is carried out together with desulfurization and some olefin saturation.
轻组分向上流至催化剂段，在那里丁二烯选择性加氢、脱硫和一些烯烃的饱和同时进行。
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