Obtaining hydrocarbons from ethanol over iron-modified ZSM-5 zeolites

Hydrocarbon Reformer Trap by Use of Transition Metal Oxide-Incorporated Beta Zeolites

“…The color of the samples changed after the TPR measurements; Fe-Al-beta and FeSi-beta were gray, while Fe(100)/H-beta was dark brown and Fe(10)/H-beta was pale. Judging from these results along with those reported in the literature, the most common and reducible Fe species was assigned as Fe 2 O 3 [21,22], and Fe 3 O 4 was formed by the reduction. This was followed by the reduction of Fe in the ion-exchanged site of zeolite, Fe 3+ to Fe 2+ , which was detected mainly on Fe/ H-beta, and also to a minor extent on Fe-Al-beta.…”

Conversão catalítica do etanol sobre catalisadores suportados em ZSM-5

“…Também, observou-se, através de experimentos realizados para a reação de conversão de etanol, com diferentes metais impregnados sobre a zeólita ZSM-5, que o rendimento final de produtos BTX (benzeno, tolueno e xileno) é maior que no caso do uso da zeólita pura e, em alguns casos, a reação pode ser realizada a temperaturas relativamente baixas [8][9][10][11][12]. Van der Borght et al [13] estudaram a conversão do etanol para a obtenção de hidrocarbonetos superiores utilizando HZSM-5 modificada com os metais Fe, Ni e Ga, onde os resultados foram comparados aos obtidos para a zeólita pura.…”

Aromatization of ethanol on Mo2C/ZSM catalysts

“…The complete conversion of ethanol was found over a series of zeolites above 573 K, but higher hydrocarbons occurred to a significant extent only on zeolite of high Bronsted acidity [18][19][20][21][22][23][24]. The formation of aromatics was also observed: their maximum content in the products was 8-12% [17][18][19][20][21][22][23][24]. Recently, Takahara et al [17] found that at 453-573 K under atmospheric pressure ethanol decomposed to ethylene via diethyl ether.…”