Sustainable hydrogen from bio-oil - Catalytic steam reforming of acetic acid as a model oxygenate

Kazuhiro Takanabe*, Ken-ichi Aika, K. Seshan, Leon Lefferts

*Corresponding author for this work

Research output: Contribution to conferencePaper

4 Citations (Scopus)
46 Downloads (Pure)

Abstract

Studies were conducted with acetic acid (HAc) as model oxygenate for the design of active and stable catalysts for steam reforming of bio-oil. Pt/ZrO2 catalysts were prepared by wet impregnation technique. The Pt/ZrO2 catalysts showed high activities at initial time on stream, but lost its activity for steam reforming (H2 production) rapidly. During HAc/H2O reaction over Pt/ZrO2, conversion was close to 100% and constant for 3 hr, however, yields of products changed with time. In the beginning (5 min), H2 and CO2 were the main products, CH4 and CO were observed in small quantities. During HAc/H2O reaction over ZrO2 (without Pt), HAc conversion was close to 90%. The conversion of HAc and yields of the products were constant for 3 hr. However, no steam reforming activity (H2 and CO) was observed, and only acetone and CO2 were observed as products. Both Pt/ZrO2 and ZrO2 were very active for HAc conversion. However, H2 and CO, i.e., steam reforming products, were produced only over Pt/ZrO2 and not over ZrO2. ZrO2 showed acetone yields similar to those observed over Pt/ZrO2 after 25 min time on stream. The presence of acetone in the product mixture and formation of deposits on ZrO2 indicated a role for acetone in catalyst deactivation.

Original languageEnglish
Pages807-808
Number of pages2
Publication statusPublished - Sep 2004
Event2004 Fall (Philadelphia) 49(2) -
Duration: 1 Jan 20041 Jan 2004

Other

Other2004 Fall (Philadelphia) 49(2)
Period1/01/041/01/04

Keywords

  • IR-57089

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