Co-gasification of black liquor and pyrolysis oil at high temperature: Part 2. Fuel conversion
Number of Authors: 4
2017 (English)In: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 197, 240-247 p.Article in journal (Refereed) Published
The efficiency and flexibility of the BL gasification process may improve by mixing BL with more energy-rich fuels such as pyrolysis oil (PO). To improve understanding of the fuel conversion process, blends of BL and PO were studied in an atmospheric drop tube furnace. Experiments were performed in varying atmosphere (5% and 0% CO2, balanced by N2), temperature (800–1400 °C), particle size (90–200 μm and 500–630 μm) and blending ratio (0%, 20% and 40% of PO in BL on weight basis). Additionally, pine wood was used as a reference fuel containing little alkali. The addition of PO to BL significantly increased the combined yield of CO and H2 and that of CH4. BL/based fuels showed much lower concentration of tar in syngas than pine wood. Remarkably, the addition of PO in BL further promoted tar reforming in presence of CO2. Unconverted carbon in the gasification residue decreased with increasing fractions of PO. Small fuel particles showed complete conversion at 1000 °C but larger particles did not reach complete conversion even at T = 1400 °C.
Place, publisher, year, edition, pages
2017. Vol. 197, 240-247 p.
Research subject Energy Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-62177DOI: 10.1016/j.fuel.2017.01.108ScopusID: 2-s2.0-85013444316OAI: oai:DiVA.org:ltu-62177DiVA: diva2:1077214
Validerad; 2017; Nivå 2; 2017-02-27 (andbra)2017-02-272017-02-272017-03-27Bibliographically approved