| abstract |
process for the production of light olefins from hydrocarbon feedstock. The process is characterized by the fact that a porous molecular sieve catalyst consisting of a product obtained by evaporating water from a feedstock mixture comprising a molecular sieve having a structure of -si-oh-al-, a water insoluble metal salt and a phosphate compound is used to produce light olefins, specifically ethylene and propylene, from hydrocarbon while maintaining excellent selectivity for light olefins; According to the process, by using a specific catalyst with hydrothermal stability, light olefins can be selectively produced in high yield with high selectivity from the hydrocarbon feedstock, specifically wide-band naphtha. Specifically, the process can maintain fractional distillation activity higher than the reaction temperature required in the prior thermal fractional distillation process for the production of light olefins, and thus can produce light olives with high selectivity and conversion from the raw material. hydrocarbon cousin. |