Abstract
This study investigated the effects of torrefaction with Mg(OH)2 on the properties of bio-oil formed from the microwave-assisted catalytic fast co-pyrolysis of straw stalk and soapstock. The effects of torrefaction temperature and residence time on the yield and composition of bio-oil were discussed. Results showed that the torrefaction temperature and residence time remarkably influenced the yield and composition of bio-oil. With the increase in temperature and time, the bio-oil yield and the proportion of oxygen-containing compounds decreased, while the proportion of aromatic compounds increased. When the feedstocks were subject to torrefaction reaction for 20 min at 260 °C, the proportion of oxygen-containing compounds decreased from 29.89% to 16.49%. Meanwhile, Mg(OH)2 could render the deoxidization function of torrefaction process increasingly noticeable. The proportion of the oxygen-containing compounds reached a minimum (14.41%), when the biomass-to-Mg(OH)2 ratio was 1:1.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 10-16 |
| Number of pages | 7 |
| Journal | China Petroleum Processing and Petrochemical Technology |
| Volume | 21 |
| Issue number | 3 |
| State | Published - Sep 30 2019 |
Bibliographical note
Publisher Copyright:© 2019 Research Institute of Petroleum Processing, SINOPEC. All rights reserved.
Keywords
- Mg(OH)
- bio-oil
- microwave torrefaction
- soapstock
- straw stalk
