• Vol 8, No 7 (2017)
  • Mechanical Engineering

A Review of Improvements to the Liquid Collection System Used in the Pyrolysis Process for Producing Liquid Smoke

Nasruddin A Abdullah, nandy Putra, Imansyah Ibnu Hakim, Raldi A. Koestoer

Publish at : 27 Dec 2017 - 00:00
IJtech : IJtech Vol 8, No 7 (2017)
DOI : https://doi.org/10.14716/ijtech.v8i7.745

Cite this article as:
Abdullah, N.A., Putra, N., Hakim, I.I., Koestoer, R.A., 2017. A Review of Improvements to the Liquid Collection System Used in the Pyrolysis Process for Producing Liquid Smoke. International Journal of Technology, Volume 8(7), pp. 1197-1206
Nasruddin A Abdullah - Mechanical Engineering, Universitas Indonesia
- Mechanical Engineering, Universitas Samudra, Langsa, Aceh Indonesia
nandy Putra Mechanical Engineering Universitas Indonesia
Imansyah Ibnu Hakim Mechanical Engineering Universitas Indonesia
Raldi A. Koestoer Mechanical Engineering Universitas Indonesia
Email to Corresponding Author


Liquid smoke can be produced by using the pyrolysis process. Biomass, as the raw material, is heated in a pyrolysis reactor to generate pyrolysis vapor. The pyrolysis vapors coming from the reactor are condensed in a liquid collection system to produce liquid smoke. A liquid collection system is a device used to convert smoke into liquid. Liquid smoke is often also called bio-oil, which is widely used as a fuel, as a preservative, and as other chemical substances. The objective of this paper was to provide the latest information on improving the liquid collection system from existing papers, and conclude with some inputs and application strategies. Studies were performed using the product parameters, equipment, and operational conditions referred to in the existing journal articles. Using a proper liquid collection system will give a better result in the liquid collection process.

Biomass; Bio-oil; Liquid collection system; Liquid smoke; Pyrolysis


The improvement of LCSs has become a serious concern of researchers with respect to the vapor condensation process. A spray tower or column has been used in LCSs to condense large quantities of liquid smoke without fractionation processes. Heat exchangers are widely applied in the condensation processes for liquid smoke due to the ease of controlling the cooling temperature. A heat exchanger is more suitable for using as the LCS to separate the heavy fractions and light fractions in liquid smoke. Using a higher boiling fraction showed a high heating value, and a result low in water and acid, which are obtained at a low temperature of cooling fluid. From the assessment of LCSs it can be concluded that there are improvements that can be made, such as the use of heat exchangers to produce liquid smoke for each fraction according to their boiling point. The current trends in LCS research for pyrolysis suggest fractional condensation can be used to obtain the required products. A suitable design is needed for the heat exchanger as a result of the thermal properties of the vapor. Research on liquid smoke based on thermofluids still needs to be conducted. There is a lack of data on thermal properties, especially for local materials from Indonesia, which provides opportunities for researchers from Indonesia to study LCSs more, especially those based on thermofluids.


Babu, B.V., Chaurasia, A.S., 2004. Pyrolysis of Biomass: Improved Models for Simultaneous Kinetics and Transport of Heat, Mass and Momentum. Energy Conversion and Management, Volume 45(9–10), pp. 1297–1327

Blasi, C.D., 2000. Modelling the Fast Pyrolysis of Cellulosic Particles in Fluid-bed Reactors. Chemical Engineering Science, Volume 55(24), pp. 5999–6013

Boateng, A.A., Daugaard, D.E., Goldberg, N.M., Hicks, K.B., 2007. Bench-scale Fluidized-bed Pyrolysis of Switchgrass for Bio-oil Production. Industrial & Engineering Chemistry Research, Volume 46(7), pp. 1891–1897

Bridgwater, A.V, 1999. Principles and Practice of Biomass Fast Pyrolysis Processes for Liquids. Journal of Analytical and Applied Pyrolysis, Volume 51(1), pp. 3–22

Bridgwater, A.V., 2012. Review of Fast Pyrolysis of Biomass and Product Upgrading. Biomass and Bioenergy, Volume 38, pp. 68–94

Bridgwater, A.V., Meier, D., Radlein, D., 1999. An Overview of Fast Pyrolysis of Biomass. Organic Geochemistry, Volume 30(12), pp. 1479–1493

Bridgwater, A.V., Peacocke, G.V.C., 2000. Fast Pyrolysis Processes for Biomass. Renewable and Sustainable Energy Reviews, Volume 4(1), pp. 1–73

Czernik, S., Bridgwater,A.V., 2004. Overview of Applications of Biomass Fast Pyrolysis Oil. Energy & Fuels, Volume 18(2), pp. 590–598

Daugaard, D.E., 2003. The Transport Phase of Pyrolytic Oil Exiting a Fast Fluidized Bed Reactor. Docotoral of Philosophy Dissertation. Iowa State University, http://lib.dr.iastate.edu/rtd/1431

Gooty,A.T., Li, D., Berruti, F., Briens, C., 2014. Kraft-lignin Pyrolysis and Fractional Condensation of its Bio-oil Vapors. Journal of Analytical and Applied Pyrolysis, Volume 106, pp. 33–40

Hasnan, A., Putra, N., Septiadi, W.N., Ariantara, B., Abdullah, N.A., 2017. Vapor Chamber Utilization for Rapid Cooling in the Conventional Plastic Injection Molding Process. International Journal of Technology, Volume 8(4), pp. 690–697

Huang, A.-N., Hsu, C.-P., Hou, B.-R., Kuo, H.-P., 2016. Production and Separation of Rice Husk Pyrolysis Bio-oils from a Fractional Distillation Column Connected Fluidized Bed Reactor. Powder Technology, Volume 323, pp. 588–593

Jin, W., Singh, K., Zondlo, J., 2015. Co-processing of Pyrolysis Vapors with Bio-chars for Ex-situ Upgrading. Renewable Energy, Volume 83, pp. 638–645

Kim, P., Weaver, S., Labbé, N., 2016. Effect of sweeping gas flow rates on temperature-controlled multistage condensation of pyrolysis vapors in an auger intermediate pyrolysis system. Journal of Analytical and Applied Pyrolysis, 118, pp. 325–334

Kuo, H.-P., Hou, B.-R., Huang, A.-N., 2017. The Influences of the Gas Fluidization Velocity on the Properties of Bio-oils from Fluidized Bed Pyrolyzer with In-line Distillation. Applied Energy, Volume 194, pp. 279–286

Lédé, J., Broust, F., Ndiaye, F.-T., Ferrer, M., 2007. Properties of Bio-oils Produced by Biomass Fast Pyrolysis in a Cyclone Reactor. Fuel, Volume 86(12), pp. 1800–1810

Leroi, F., Joffraud., J.J., 2000. Salt and Smoke Simultaneously Affect Chemical and Sensory Quality of Cold-smoked Salmon during 5oC Storage Predicted using Bactorial Design. Journal of Food Protection,Volume 63(9), pp. 1222–1227

Li, D., Briens, C., Berruti, F., 2015. Improved Lignin Pyrolysis for Phenolics Production in a Bubbling Bed Reactor–effect of Bed Materials. Bioresource Technology,Volume 189, pp. 7–14

Lindfors, C.,Kuoppala,E., Oasmaa, A., Solantausta, Y., Arpiainen, V., 2014. Fractionation of Bio-oil. Energy & Fuels, Volume 28, pp. 5785?5791

Luo, G., Chandler, D.S., Anjos, L.C., Eng, R.J., Jia, P., Resende, F.L., 2017. Pyrolysis of Whole Wood Chips and Rods in a Novel Ablative Reactor. Fuel, Volume 194, pp. 229–238

Luo, K., Li, Y., Zheng, C., Gao, X., Fan, J., 2015. Numerical Simulation of Temperature Effect on Particles Behavior via Electrostatic Precipitators. Applied Thermal Engineering,Volume 88, pp. 127–139

Luo, Z., Wang, S., Liao, Y., Zhou, J., Gu, Y., Cen, K., 2004. Research on Biomass Fast Pyrolysis for Liquid Fuel. Biomass and Bioenergy, Volume 26(5), pp. 455–462

Mazlan, M.A.F., Uemura, Y., Osman, N.B., Yusup, S., 2015. Fast Pyrolysis of Hardwood Residues using a Fixed Bed Drop-type Pyrolyzer. Energy Conversion and Management, Volume 98, pp. 208–214

Messina, L.G., Bonelli, P., Cukierman, A., 2017. In-situ Catalytic Pyrolysis of Peanut Shells using Modified Natural Zeolite. Fuel Processing Technology, Volume 159, pp. 160–167

Miao, X., Wu, Q., Yang, C., 2004. Fast Pyrolysis of Microalgae to Produce Renewable Fuels. Journal of Analytical and Applied Pyrolysis, Volume 71(2), pp. 855–863

Milly, P.J.,Toledo, R.T., Ramakrishnan, S., 2005. Determination of Minimum Inhibitory Concentrations of Liquid Smoke Fractions. Journal of Food Science, Volume 70(1), pp. M12–M17

Mohan, D., Pittman, C.U., Steele, P.H., 2006. Pyrolysis of Wood/biomass for Bio-oil: A Critical Review. Energy & Fuels, Volume 20(3), pp. 848–889

Pollard, A.S., Rover, M.R., Brown, R.C., 2012. Characterization of Bio-oil Recovered as Stage Fractions with Unique Chemical and Physical Properties. Journal of Analytical and Applied Pyrolysis, Volume 93, pp. 129–138

Predel, M., Kaminsky, W., 1998. Pyrolysis of Rape-seed in a Fluidised-bed Reactor. Bioresource Technology, Volume 66(2), pp. 113–117

Rørvik, L.M., 2000. Listeria Monocytogenes in the Smoked Salmon Industry. International Journal of Food Microbiology, Volume 62(3), pp. 183–190

Schulzke, T., Conrad, S., Westermeyer, J., 2016. Fractionation of Flash Pyrolysis Condensates by Staged Condensation. Biomass and Bioenergy, Volume 95, pp. 287–295

Sharma, A., Pareek, V., Zhang, D., 2015. Biomass Pyrolysis—A Review of Modelling, Process Parameters and Catalytic Studies. Renewable and Sustainable Energy Reviews, Volume 50, pp. 1081–1096

Suñen, E., Fernandez-Galian, B., Aristimuño, C., 2001. Antibacterial Activity of Smoke Wood Condensates Against Aeromonas Hydrophila, Yersinia Enterocolitica andListeria Monocytogenes at Low Temperature. Food Microbiology, Volume 18(4), pp. 387–393

Westerhof, R.J., Kuipers, N.J., Kersten, S.R., van Swaaij, W.P., 2007. Controlling the Water Content of Biomass Fast Pyrolysis Oil. Industrial & Engineering Chemistry Research, Volume 46(26), pp. 9238–9247

Wu, S.-R., Chang, C.-C., Chang, Y.-H., Wan, H.-P., 2016. Comparison of Oil-tea Shell and Douglas-fir Sawdust for the Production of Bio-oils and Chars in a Fluidized-bed Fast Pyrolysis System. Fuel, Volume 175, pp. 57–63

Yang, A.L.C., Ani, F.N., 2016. Controlled Microwave-induced Pyrolysis of Waste Rubber Tires. International Journal of Technology, Volume 7(2), pp. 314–322

Yin, R., Liu, R., Mei, Y., Fei, W., Sun, X., 2013. Characterization of Bio-oil and Bio-char Obtained from Sweet Sorghum Bagasse Fast Pyrolysis with Fractional Condensers. Fuel, Volume 112, pp. 96–104

Yuliansyah, A.T., Prasetya, A., Ramadhan, M.A.A., Laksono, R., 2015. Pyrolisis of Plastic Waste to Produce Pyrolytic Oil as an Alternative. International Journal of Technology, Volume 6(7), pp. 1076–1083

Zheng, J.-l., Yi, W.-m., Wang, N.-n., 2008. Bio-oil Production from Cotton Stalk. Energy Conversion and Management,Volume 49(6), pp. 1724–1730