Optimization of Process Variables for the Soda Pulping of Carpolobia Lutea (Polygalaceae) G. Don
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초록
The selection of suitable delignification conditions and optimization of process variables is crucial to the successful operation of chemical pulping processes. Soda pulping of Carpolobia lutea was investigated, as an alternative raw material for pulp and paper production. The process was optimized under the influence of three operational variables, namely,temperature, time and concentration of cooking liquor. Equations derived using a second - order polynomial design predicted the pulp yield and lignin dissolution with errors less than 8% and 11% respectively. The maximum variations in the pulp yield using a second order factorial design was caused by changes in both time and alkali concentration. Optimum pulp yield of 43.87% was obtained at low values of the process variables. The selectivity of lignin dissolution was independent of the working conditions, allowing quantitative estimations to be established between the pulp yield and residual lignin content within the range studied.
Abstract
The selection of suitable delignification conditions and optimization of process variables is crucial to the successful operation of chemical pulping processes. Soda pulping of Carpolobia lutea was investigated, as an alternative raw material for pulp and paper production. The process was optimized under the influence of three operational variables, namely,temperature, time and concentration of cooking liquor. Equations derived using a second - order polynomial design predicted the pulp yield and lignin dissolution with errors less than 8% and 11% respectively. The maximum variations in the pulp yield using a second order factorial design was caused by changes in both time and alkali concentration. Optimum pulp yield of 43.87% was obtained at low values of the process variables. The selectivity of lignin dissolution was independent of the working conditions, allowing quantitative estimations to be established between the pulp yield and residual lignin content within the range studied.
참고문헌 (26)
- Global Forest Resources Assessment, "FAO - Food and Agriculture Organization of the United Nations Rome", ~ (2005)
- Ashori, A, , Polymer-Plastic Technol. Eng, 45, pp.1133~ (2006)
- Kissinger, M., , Ecological Economics, 62, pp.552~ (2007)
- West, T. O, , Agriculture, Ecosystems & Environ, 91, pp.218~ (2002)
- Chauhan, L, , Journal of the T.D.A., 46, pp.11~ (2000)
- Jiménez, L, , Ind. Crops Prod, 28, pp.11~ (2008)
- Raw Material Research and Development Council(RMRDC), "Report on the Techno-Economic survey of themulti-disciplinary task force on pulp" (1996), paper products printingand publishing sector
- Oluwadare, A. O., , J. Trop. For. Resour, 14, pp.110~ (1998)
- Inyang, E, , The Verdict Press, 1, pp.111~ (2003)
- Ettebong E, , African J. Biotech, 8, pp.12~ (2009)
- Ogunsile, B. O, , Biores, 5(4), pp.2417~ (2010)
- Tjeerdsma, B. F, , Holzforschung, 48(5), pp.415~ (1994)
- Aknazarova, S, "Experiment Optimization in Chemistry and Chemical Engineering" (1982), Mir Publishers
- Vazquez, G, , Holzforschung, 49, pp.69~ (1995)
- Vega, A, , Biores. Technol, 61, pp.1~ (1997)
- Gilarranz, M. A, , Canadian J. Chemical Engineering, 77(3), pp.515~ (1999)
- Lopez, F, , Biores. Technol, 87, pp.255~ (2003)
- Ligero, P, , Ind. Crops Prod, 21, pp.235~ (2005)
- Jiménez, L., , Ariza, J. Biores. Technol, 98, pp.3440~ (2007)
- Dutt, D, , Ind. Crops Prod, 29, pp.16~ (2009)
- Grant, J., "A Laboratory Handbook of Pulp and Paper Manufacture, 2nd ed", pp.49~ (1961), Edward Arnold Ltd
- TAPPI, "Kappa number of pulp T236CM-85", ~ (1993)
- Lopez, F, , Chem. Engr. Res. Design: Transaction of the Institution of Chemical Engineers Part A, 88(1), pp.1~ (2010)
- Laine, J, , Cellulose, 1, pp.145~ (1994)
- Yu, Y, , Ind. Crops Prod, 15, pp.123~ (2002)
- Masura, V., , TAPPI J, 76, pp.105~ (1993)