Kinetic studies of biomass hydrodeoxygenation in a continuous flow reactor / Luo, Jing.

Format:

Book

Thesis/Dissertation

Author/Creator:

Luo, Jing, author.

Contributor:

Gorte, Raymond J., degree supervisor.

Vohs, John M., degree committee member.

Sinno, Talid R., degree committee member.

Berry, Donald H., degree committee member.

University of Pennsylvania. Chemical and Biomolecular Engineering, degree granting institution.

Language:

English

Subjects (All):

Chemical engineering.

Chemical and Biomolecular Engineering--Penn dissertations.

Penn dissertations--Chemical and Biomolecular Engineering.

Local Subjects:

Chemical engineering.

Chemical and Biomolecular Engineering--Penn dissertations.

Penn dissertations--Chemical and Biomolecular Engineering.

Genre:

Academic theses.

Physical Description:

1 online resource (213 pages)

Contained In:

Dissertation Abstracts International 78-07B(E).

Place of Publication:

[Philadelphia, Pennsylvania] : University of Pennsylvania ; Ann Arbor : ProQuest Dissertations & Theses, 2016.

Language Note:

English

System Details:

Mode of access: World Wide Web.

text file

Summary:

Hydrodeoxygenation (HDO) of 5-hydroxymethylfurfural (HMF) has received a great deal of attention in the past few years because of its importance for converting biomass into petrochemical replacements. Previously, most studies on liquid-phase HDO have been performed only in batch reactors. The present work investigates the HDO reaction in a self-designed flow reacting system, which is demonstrated to be a powerful tool for kinetic studies. The data indicate that the HDO of HMF follows a sequential scheme, with HMF first reacting to partially hydrogenated intermediates. These intermediate products then form DMF, which in turn reacts further to undesired products. The HDO performance has been investigated over a large number catalysts in the flow reactor. Monometallic catalysts (Pt, Pd, Ni, Co, Ru, Ir, etc.) are generally found to be unselective, due to the over-hydrogenation of DMF through ring-opening or ring-hydrogenation. By contrast, bimetallic catalysts, especially with well-controlled particle size and metal composition, are observed to be highly selective in the HDO of HMF. Nearly 100% yields of DMF can be achieved over Pt3Co2, Pt3Ni, Pt2Zn and PtCu nanocrystal catalysts. Theoretical calculations indicate that the binding configuration of furanic intermediates change on bimetallic surfaces compared to monometallic catalyst, leading to different reaction pathways. This thesis work provides a general strategy for improving the HDO selectivity from HMF.

Notes:

Source: Dissertation Abstracts International, Volume: 78-07(E), Section: B.

Advisors: Raymond J. Gorte; Committee members: Donald H. Berry; Talid R. Sinno; John M. Vohs.

Department: Chemical and Biomolecular Engineering.

Ph.D. University of Pennsylvania 2016.

Local Notes:

School code: 0175

ISBN:

9781369510386

Access Restriction:

Restricted for use by site license.