Physicochemical properties of pyroligneous acid from corbonization of five wood species

1. Physicochemical properties of pyroligneous acid from corbonization of five wood species YONGYUTH THEAPPARAT Department of Biochemistry, Faculty of Science Prince of Songkla University

2. Pyroligneous acid is a by-product obtained from condensation of gas phase and smoke outlet during charcoal production process.

3. Pyroligneous acid is a light yellow todark brown color, viscous liquid and smoky odor

4. Pest control Insecticide Growth stimulation Root stimulation Improving soil quality Organic fungicidal • Agricultural applications

5. Medicinal and pharmaceutical applications • Probiotic drug • Antiallergic drug • Anti-inflammation and wound dressing drug

6. Chemical compositions are highly variable, there are containing 200-300 compounds of pyrolysis of wood. • Water is major composition of 80-95%wt, the rest is organic compounds. • Source: Mohan et al., 2006

7. Quality index • Source: Wada, 1997 and Thai Industrial Standard, 2010

8. Pyroligneous acid • Properties • Preparation process • Feedstock Influencing factors to determine the properties of pyroligneous acid • Kiln • Temperature • Ageing

9. OBJECTIVES To evaluate the physicochemical properties ofpyroligneous acid from difference wood and commercial products To determine the quality of pyroligneous acid following the Japan Standards

10. Materials and methods

11. Feedstock • Neem wood: • A. indica • Rubber wood : • H. brasilensis • Katin Yak wood: • L. leucocephala • Bamboo: • D.asper • Eucalyptus wood: • E. camadulensis

12. Pyroligneous acid was prepaed by Thai-iwate kiln • 500°C • 80-150°C

13. To comparison, 2 commercial pyroligneousacids areused. • Commercial pyroligneous acid made in Japan and Malaysia

14. Determination of physicochemical properties of pyroligneous acid

15. results

16. Specific Gravity Specific Gravity range from 1.004-1.012 g/ml. Rubber wood and Bamboo were in acceptable criteria of Japan • Japan Standard sets 1.010-1.050 g/ml

17. Acidity pH showed slight variable (2.9-3.5). pH of all samples were in acceptable criteria of Japan Standards. • Japan Standard sets around 3.0

18. Total acid contents

19. Total soluble tar contents

20. Light absorption characteristic

21. Water contents Water content range from 79-93 %wt. All samples higher than commercial products. Only 3samples were in acceptable criteria of Japan Standard by lower than 90 %wt. • %wt.

22. Compositions of organic chemical in pyroligneous acids 32-70 mg/ml Acetic acid 12.3-30.4 mg/ml Phenols 0.7-8.1 mg/ml Alcoholics 0.3-7.4 mg/ml Furans

23. Acetic acid • GC-FID chromatogram of pyroligneous acid from bamboo • Fufurals • & • Furans • Phenols • Alcohols

24. Phenolic contains with high concentration Pyroligneous acid of Rubber woodand Bamboohigher concentration of phenols than the rest

25. Conclusions Pyroroligneosacid from rubber and bamboo woods were acceptable all parameters of Japan Standard Pyroligneous acid from rubber wood and bamboo were higher acetic acid and total phenols contents than that of other wood and commercial products

26. Thank You For Your Kind Attention

27. Principal constituents of wood

28. Pyrolysis process • Slow pyrolysis • Fast pyrolysis