Method and apparatus for producing aromatic hydrocarbon and olefins by coupling of catalytic hydrogenation and catalytic cracking of biogenic oil

摘要

Method and apparatus for preparing an arene and an olefin by means of catalytic hydrogenation coupled with catalytic cracking of a bio-fuel. The device comprises a biomass thermal cracking fuel preparation unit (100), a bio-fuel stratification unit (200), a catalytic hydrogenation unit (300), a bio-fuel catalytic cracking unit (400), and a separation and purification unit (500). The bio-fuel stratification unit (200) produces a light fuel and a heavy fuel. The light fuel is hydrogenated in the catalytic hydrogenation unit (300) to obtain a liquid product, and the liquid product is mixed with the heavy fuel from the bio-fuel stratification unit (200), followed by catalytic cracking. The resulting products are separated and purified to give a high-purity arene and olefin. The present invention achieves complete catalytic hydrogenation and catalytic cracking of all components of a bio-fuel, and avoids loss of catalytic properties due to catalyst coking.