Patent ID: 7507385
Filing Date: 2009-03-24
Classification: B01F,B01J,C07C,Y10S

Abstract:
1. A reaction system for the production of a vinyl aromatic compound comprising: a plurality of parallel-arranged, elongated, tubular reactors having inlet side and outlet sides; an inlet manifold connected to said tubular reactors for supplying a mixture of reactants to the inlet sides of said reactors, wherein said reactants comprise a feedstock containing a C a mixing section in each of said reactors adjacent the inlet side thereof for the mixing of said alkyl aromatic compound and steam, said mixing section comprising at least one static baffle in an elongated helical configuration comprising a spiral flow path, wherein the mixing section is absent of catalyst particles; a reaction section in said each of said reactors located downstream of said mixing section and comprising a bed of dehydrogenation catalyst particles, wherein said reaction section is effective to cause the dehydrogenation of said alkyl aromatic compound to a corresponding vinyl aromatic compound in the presence of said dehydrogenation catalyst; an outlet manifold connected to the outlet sides of said tubular reactors; and a recovery system for recovering a reaction product from said tubular reactor, said reaction product comprising a vinyl aromatic product.