期刊
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷 132, 期 -, 页码 56-64出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2018.03.015
关键词
Co-pyrolysis; Bio-oil; Empty Fruit Bunch Fiber; PH; Sludge
资金
- Ministry of Higher Education (MOHE), Malaysia [FRGS/1/2015/TK02/UNIM/02/1]
Bio-oil from the fast pyrolysis of biomass has the potential to be an effective and reliable renewable energy source, A common issue faced is the high acidity of bio-oil, which obstructs bio-oil storage and processing. This study utilized fast co-pyrolysis of oil palm Empty Fruit Bunch Fiber (EFBF) with Palm Oil Sludge (sludge) at different ratios (10, 20, 35 and 50 wt.% sludge with EFBF) to produce bio-oil with higher pH. The sludge with high ash content acted as a catalyst for esterification at higher percentages. Bio-oil yields decreased from 41.2 +/- 3.4 wt.% (for EFBF) to 28.8 +/- 1.4 wt.% (for sludge) as the sludge percentage increased from 0 to 100%. The catalytic effect posed by mineral metals in sludge led to a negative synergistic effect in terms of yields of biooil. Physicochemical properties of bio-oils were analyzed and compared to ASTM standards. An increase in pH value (7.2 +/- 0.0) was achieved for bio-oil that was derived from the blend with 50 wt.% sludge. However, the bio-oil yield was compromised. Based on the yield and physical properties of bio-oil, the blend with 35 wt.% of sludge was selected as the desired ratio to further study the co-pyrolysis of EFBF and sludge. A bio-oil with pH 4.5 was successfully produced in one of the most economical method.
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