Hierarchical zeolites combine the intrinsic catalytic properties of microporous zeolites and
the enhanced access and transport of the additional meso-and/or macroporous system …

Methanol could be considered one of four important basic chemicals, and is produced at the
rate of more than 98 million tons yearly. About 30% of methanol is utilized in fuel …

The demand for virgin polymers is constantly increasing owing to the desired performance
and low recycling rates of polymers; however, this exacerbates significant plastic-industry …

To address the growing concerns regarding climate change and the depletion of fossil
resources, the zeolite ZSM-5 catalyzed methanol-to-olefin (MTO) process is considered to …

Despite the favorable properties, ZSM-5 still suffers from deposition of coke in vital pores of
catalyst (reversible deactivation) as well as dealumination (irreversible deactivation) due to …

A handful of small organics, namely, ethylene, propylene, butadiene, benzene, toluene,
xylenes, and methanol, produced from petroleum and other fossilized carbon-based …

The study considered catalytically active systems in the synthesis of olefins below DME
based on Zn-Zr-Cu* HSZ* Al2O3. The hydrogen form of zeolite (H+) was obtained by …

Incorporation of Ca in ZSM‐5 results in a twofold increase of propylene selectivity (53%), a
total light‐olefin selectivity of 90%, and a nine times longer catalyst lifetime (throughput 792 …

The demand for olefins has increased steadily in recent years, with a propylene demand
around 100 million tons per year and an expected annual growth of 3–4%. Most propylene …

In this work, a b-axis oriented hierarchical ZSM-5 zeolite was prepared with glucose as an
additive and further modified by phosphorus to improve the propylene selectivity and …