Patents by Inventor Ying Muliang

Ying Muliang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the conversion of methanol to light olefins and catalyst used for such process
    Patent number: 5367100
    Abstract: A zeolite catalyst from ZSM-5 modified with phosphorus, rare earth elements and pore structure regulator is used for methanol/dimethyl ether conversion to light olefins.High temperature, non-recycling, continuous-running process is realized in the reactor system, comprising a dehydration reactor and several (2-n) adiabatic, fixed bed cracking reactors, loaded with the catalyst in multi-stage packing and operated in reaction regeneration cycles. The catalyst possesses high activity, high selectivity, good hydrothermal stability and long reaction life time.Operation of 100% methanol conversion and >85% C.sub.2 -C.sub.4 selectivity has been performed in a reactor system of the scale 0.7-1 ton CH.sub.3 OH/day for >600 hours on stream and with reaction time of single cycle >24 hours.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: November 22, 1994
    Assignee: Dalian Institute of Chemical Physics
    Inventors: Wang Gongwei, Ying Muliang, Wang Xingchun, Chen Guoquan