A Proposed Surface Area Measurement Module for Rural Folks: Desing Concept and trial Setup
Abstrak
A simple module for surface area measurement based on CO2 adsorbtion.at dry-ice methanol temperrature was designed. The designed consists a sample tube, a glass syiringe for pressure measurement, and an anspirator for evacuation. No shopiscate electronic de w used. Dry ice was used Dry ice was coolent in place of liquid nitrogen, which is widely wed in ordinary BET surface area measument. Vacuum tighess w confied acceptable when cooking oil was used a seal liquid at the contact suace of the singe. Error anaIes were done for both vacuum tighness and the prence of riduaI gases due to the use of water-driven aspiration. Adsorbtion measurements of CO2 were conducted using the simple module and a conventional apparatus. Results confirmed that the modue works well within reasonable eximental error, if the weight of sampIe and the initial intake of sample gas are chosen properly. However since the adsorption isotherms of several carbon samples shawed a pleteau at high preure, the BET equation was not applicble. Instead, the Langmuir one-point method would be rocommended for surface area mesurement.Referensi
Brunauer, S., and Everette, D. H. (1940). “On the theory of the Van der Waals adsorption of gases," J. Am. Chem. Soc., 62, 1723-32.
Della Rocca, P. A., Cerrella, E. G., Bonelli, P. R., and Cukierman, A. L. (1999). "Pyrolysis of hardwood residues: On kinetics and chars characterization," Biomass and Bioenergy, 16, 79–88.
Everett, D. H., Parfitt, G. D., Sing, K. S. W., and Wilson, R. (1974). "The SCI/IUPAC/NPL project on surface area standards," J. Appl. Chem. Biotechnol., 24, 199-219.
Gonzalez-Vilchez, P., Linares-Solano, A., Lopez Gonzalez, J. de D., and Rodriguez Reinoso, F. (1979). "The controlled reaction of active carbons with air at 350°C-1," Carbon, 17, 441-46.
Nakashima, M., Shimada, S., Inagaki, M., and Centeno, T. A. (1995). "On the adsorption of CO, by molecular sieve carbons volumetric and gravimetric studies," Carbon, 33, 1304-6.
Rodriguez-Reinoso, F., Lopez-Gonzalez, J. Je D., and Berenguer, C. (1982). "Activated carbons from almond shell-I preparation and characterization by nitrogen adsorption," Carbon, 20, 513-18.
Satterfield, C. N. (1993). Heterogeneous catalysis in industrial practice, 2nd ed., McGraw Hill, Singapore. 132-34.
Della Rocca, P. A., Cerrella, E. G., Bonelli, P. R., and Cukierman, A. L. (1999). "Pyrolysis of hardwood residues: On kinetics and chars characterization," Biomass and Bioenergy, 16, 79–88.
Everett, D. H., Parfitt, G. D., Sing, K. S. W., and Wilson, R. (1974). "The SCI/IUPAC/NPL project on surface area standards," J. Appl. Chem. Biotechnol., 24, 199-219.
Gonzalez-Vilchez, P., Linares-Solano, A., Lopez Gonzalez, J. de D., and Rodriguez Reinoso, F. (1979). "The controlled reaction of active carbons with air at 350°C-1," Carbon, 17, 441-46.
Nakashima, M., Shimada, S., Inagaki, M., and Centeno, T. A. (1995). "On the adsorption of CO, by molecular sieve carbons volumetric and gravimetric studies," Carbon, 33, 1304-6.
Rodriguez-Reinoso, F., Lopez-Gonzalez, J. Je D., and Berenguer, C. (1982). "Activated carbons from almond shell-I preparation and characterization by nitrogen adsorption," Carbon, 20, 513-18.
Satterfield, C. N. (1993). Heterogeneous catalysis in industrial practice, 2nd ed., McGraw Hill, Singapore. 132-34.
Diterbitkan
2004-12-31
Bagaimana cara mengutip
Pattarapaprakorn, W., Tono, M., & Niyama, H. (2004). A Proposed Surface Area Measurement Module for Rural Folks: Desing Concept and trial Setup, 4(1), 25-32. Diambil dari https://jurnal.ugm.ac.id/v3/AJChE/article/view/7584
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