Patent ID: 9216902
Filing Date: 2015-12-22
Classification: C01B

Abstract:
1. Method for the production of ethene and synthesis gas in a circulating fluidized bed, the method including the following steps: 1) providing a reactor with two independent, interconnected sections, each with a circulating fluidized bed; 2) providing a feedstock, a water stream, and a steam cracking catalyst to a first section of the reactor in order to promote contact between said feedstock and the steam cracking catalyst at a temperature between 620° C. and 830° C. such that steam based cracking reactions occur in the presence of steam and the absence of oxygen; 3) separating products from the steam based cracking reactions, wherein the products include ethene; 4) continuously regenerating said catalyst in a second section of the reactor, through the burning, with air, of the deposited coke; and 5) reconveying said regenerated catalyst to the first section of the reactor to restart the process; wherein the feedstock is a raw material selected from the group consisting of an oil of renewable origin, vegetable oil, an alcohol, a lignocellulosic material, and mixtures thereof; and wherein the steam cracking catalyst consisting of from 0 to 60% by weight of a solid acid including at least one zeolite, from 5 to 40% by weight of alumina, from 5 to 25% by weight of silica, kaolin, and at least one metal or metal oxide.