Novick, Kim & Lee, PLLC
Process for producing light olefins and aromatics
A process for producing light olefins and aromatics, which comprises reacting a feedstock with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone. The spent catalyst is separated, from the reaction product vapor, regenerated, and then returned to the reactor. The reaction product vapor is separated to obtain the desired products, light olefins and aromatics. This process efficiently produces light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.
China Petroleum Chemical Corporation Research Institute of Petroleum Processing Sinopec
C C C C C C C C C C C C C C C C C C C C C
C10G C10G C10G C07C C10G C10G C10G C10G C07C C10G C10G C10G C10G C10G C07C C10G C10G C10G C10G C10G C10G
additional additional additional inventional inventional additional inventional additional inventional inventional additional inventional additional additional inventional additional additional inventional additional additional additional
Chaogang Zhijian Jun Dadong Jiushun Xingtian Zhigang Xieqing Hong Wei
Xie Da Long Li Zhang Shu Zhang Wang Nie Wang