Abstract
Small-angle neutron scattering (SANS) was used to study the porosity of pine samples before and after ionic liquid (IL) pretreatment. Pine samples were pretreated using 1-ethyl-3-methylimidazolium acetate ([C2C1Im][OAc]) at 110 °C for 3 h at biomass concentrations of 5, 10, 15, 20, and 25 wt % and at 130 °C for 3 h at biomass concentrations of 5 and 25 wt %. For the first time, relative changes in porosity of pretreated pine samples derived from SANS were compared with those obtained from the nitrogen adsorption analysis. Biomass crystalline structures were measured by X-ray diffraction (XRD). Both porosity and XRD data suggest that [C2C1Im][OAc] interacted with pine samples more efficiently at higher biomass concentrations during pretreatment. This was attributed to the presence of resin acid in the pine samples.
| Original language | English |
|---|---|
| Pages (from-to) | 10874-10879 |
| Number of pages | 6 |
| Journal | Energy and Fuels |
| Volume | 31 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 19 2017 |
Funding
Gang Cheng acknowledges support for this research by the National Natural Science Foundation of China (U1432109) and China Scholarship Council (201606885004). We acknowledge support by the DOE Joint BioEnergy Institute (http:// www.jbei.org) through the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the U.S. Department of Energy. A portion of this research used resources at the High Flux Isotope Reactor, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory.
| Funders | Funder number |
|---|---|
| DOE Joint BioEnergy Institute | |
| Office of Biological and Environmental Research | DE-AC02-05CH11231 |
| U.S. Department of Energy | |
| Office of Science | |
| Lawrence Berkeley National Laboratory | |
| National Natural Science Foundation of China | U1432109 |
| China Scholarship Council | 201606885004 |