Higher Octane Gasoline from Petroleum New Zeolites

More and Higher Octane Gasoline from Petroleum New Zeolites 

The structure of Unde Zeolite A consists of silicate and aluminate tetrahedra with accompanying cations. 

Perkin Medal by the American Chemical Society in 1992. She was the first woman to win this award. Tradition dictated that the winner wear a mauve-colored tie (in honor of William H. Perkin, who synthesized mauve, the first dye derived from coal tar). In keeping with the spirit, if not the letter, of this tradition, Flanigen purchased a spectacular mauve-colored dress for the occasion of her award. 

During the early 1970s, Clarence D. Chang, Anthony J. Silvestri, and William Lang, at Mobil Research and Development, discovered Zeolite ZSM-5, one of the most important catalysts ever produced. Zeolite ZSM-5 is a superacidic substance that catalyzes isomerization of ortho-and meta-xylenes to para-xylene the latter s cylindrical shape helps it to diffuse much more rapidly through the zeolite matrix. Quite by accident, they discovered that ZSM-5 catalyzes the conversion of methanol to 

---