Transcript The Hydrocarbon Pool in Alcohol-to-Gasoline over HZSM

Sarah Hruby
Department of Chemical and Biological Engineering
Iowa State University
The Hydrocarbon Pool in Alcohol-to-Gasoline over HZSM-5 Catalysts
Research Goal:
MTG
ETG
Examine the role of the hydrocarbon pool in
the ethanol-to-gasoline process using HZSM-5
Payoff:
Determine how addition of ethanol to a
methanol-to-gasoline reaction affects the
process
Figure 1: Retained material in the ETG and MTG
processes
Approach:
Results:
Feed mixtures of alcohols and water through a
continuous flow fixed bed stainless steel reactor.
- ETG zeolites contained mixed ethyl/methyl
benzenes not present in MTG
-EtOH feed produced same product distribution
in liquid and gas samples
-Zeolites from EtOH/MeOH mixtures did not
contain the mixed ethyl/methyl benzenes seen
with EtOH alone
- Other alcohols currently under investigation
Dissolve the zeolites in HF to determine the
composition of the material retained in the pores.
Evaluate catalyst deactivation behavior.