Nghiên cứu các chất xúc tác cracking thế hệ mới với hoạt tính và độ chọn lọc cao hơn?

Mar 8, 2018 ... Keywords: catalytic cracking, modified zeolites, C6 - alkanes, C14 - alkanes, high - octane gasoline. ... the direction of the alkane cracking and ... Cracking: conversion of large hydrocarbons to smaller hydrocarbon molecules by breakage of C-C bonds. High Mr alkanes → smaller Mr alkanes+ alkenes + (hydrogen). ... cracking of alkanes and alkenes. Before simulating hydrocarbon cracking reactions at elevated temperatures, MD calculations were performed to investigate ... For thermal cracking, the results suggest that the most favored initiation step is the breaking of the β bond of the alkane to create an ethyl radical. For ... Alkanes are hydrocarbons which only contain carbon-carbon single bonds. Alkenes are hydrocarbons which contain a carbon-carbon double bond. Why crack ... The review discusses chemical mechanisms of most important reactions that take place in the course of catalytic cracking of alkenes and alkanes over solid ... Mar 9, 2018 ... This also accounted for changes in both the cracking products and the carbon laydown on the catalyst. The deactivation regeneration cycles ... Apr 24, 2018 ... ... alkane transformation to added-value products such as olefins, which have found widespread use in the manufacturing industry,” said Max ... The breaking down of large hydrocarbon molecules into smaller, more useful hydrocarbon molecules by vaporising them and passing them over a hot catalyst. Cracking is the process of converting alkanes into alkenes and shorter alkanes. We crack alkanes because the shorter chain alkanes are more valuable (they ...