CERIUM-CONTAINING ZEOLITES AND COKE REDUCTION METHODS

摘要

The invention provides a catalyst system for catalytic fast pyrolysis comprising a cerium-incorporated HZSM-5 zeolite (Catalyst 1), and methods of making and using the same. The invention also provides a process for reducing coke formation during catalytic fast pyrolysis of biomass using HZSM-5, wherein the process can include incorporating cerium into the HZSM-5 zeolite to produce Catalyst 1 prior to the catalytic fast pyrolysis.

主权项

1. A catalyst system for catalytic fast pyrolysis comprising a cerium-incorporated high silica zeolite, wherein the cerium-incorporated high silica zeolite comprises:
a) silicon and aluminum with a Si/Al ratio ranges from about 10 to about 300; b) cerium ranging from about 0.3 wt % to about 2.5 wt % of said zeolite; c) water; and d) a catalyst matrix having a mesopore size ranging from about 20 angstroms to about 500 angstroms.