(639o) Upgrading Fast-Hydropyrolysis Products of Cellulose to Higher Molecular Weight Products Using Systems-Level Molecular Mapping
- Conference: AIChE Annual Meeting
- Year: 2017
- Proceeding: 2017 Annual Meeting
- Group: Topical Conference: Thermal Deconstruction of Biomass
- Time: Wednesday, November 1, 2017 - 6:00pm-8:00pm
Toward developing an integrated biorefinery, we develop a holistic and systematic approach to biorefinery design by fully considering the underlying biomass conversion reaction systems. Our approach considers the biomass-to-chemicals landscape, which mainly consists of primary and subsequent processes. Using automated reaction network generator, we exhaustively define the possible search space of the reaction system. We then construct a reaction-separator superstructure and determine the optimal reaction route through optimization. In order to select thermodynamically feasible reaction route, we also consider thermodynamic parameters in our approach.
To illustrate our approach, we present a case study on upgrading fast-hydropyrolysis of cellulose to higher molecular weight molecules. Levoglucosan and glycol aldehyde are the major components in fast-hydropyrolysis of cellulose. Identifying the optimal reaction route to convert these molecules to higher molecular weight compounds are crucial in order to improve their fuel qualities. In this study, we identified several promising reaction routes to convert the vapor to higher molecular weight compounds and showed that key intermediates are required in order to allow carbon coupling between glycol aldehyde and levoglucosan.