Synthesis Of Activated Carbon Materials From Petroleum Coke [síntese De Materiais Carbonosos Ativados A Partir De Coque De Petróleo]

Activated carbon materials (MCA) present a high specific superficial areas and an increased volume of pores in its carbon matrix. The main MCA production processes use as raw material precursors with high carbon content. Petroleum coke (CP), residue with high fixed carbon content and low ash content, with a practically amorphous structure, has little commercial value. A study on the production of MCA from CP originating from the coke unit at Paulinia Refinery (Replan/Petrobras) was carried out. Changes in process parameters caused structural changes in the porous net of the MCA obtained, allowing to realize superficial areas of ≤ 2500 sq m/g with narrow distributions of the size of pores and features of molecular sieves.511-34565BANSAL, R.C., DONNET, J.B., STOECKLI, F., (1988) Active Carbon, , New York: Marcel DekkerCOUTINHO, A. R.LUENGO, C. A. Preparing and characterizing electrode grade carbons from eucalyptus pyrolysis products. In: Advances thermochemical biomass conversion. London: Blakie Acad & Prof. 1994. p.1230 1241. v. 2COUTINHO, A. R.MÉNDEZ, M. O. A. Preparação de carvões ativados a partir de fibras de celulose compactadas. In: ENCONTRO BRASILEIRO SOBRE ADSORÇÃO, 3., 2002, Recife. Anais... Recife: UFPE, 2002. p.60-64COUTINHO, A. R.MENDEZ, M. O.CAPOBIANCO, G.OTANI, C.PETRACONI, G.MACIEL, H.MASSI, M.URRUCHI, W.CAMPOS, F. B.CAMPOS, M. F.FURINI, R. Síntese e caracterização de materiais carbonosos ativados para armazenamento de gás natural. In: RIO OIL & GAS EXPO AND CONFERENCE, 2004, Rio de Janeiro. Anais... Rio de Janeiro: IBP. 2004COUTINHO, A.R., ROCHA, J.D., LUENGO, C.A., Preparing and characterizing biocarbon electrodes (2000) Fuel Processing Technology, 67 (2), pp. 93-102. , Amsterdan, vFIGUEIREDO, J. L.ÓRFÃO, J. J. L.. Fisissorção em sólidos macro e mesoporosos. In: CURSO IBERO-AMERICANO SOBRE CARACTERIZAÇÃO DE CATALISADORES E ADSORVENTES, 2., São Carlos. [Apostila...] CYTED - Ciencia y Tecnologia para el Desarrollo: Madri.2001. p.1-21FURINI, R. Síntese e caracterização de materiais carbonosos ativados para armazenamento de gás natural. In: RIO OIL & GAS EXPO AND CONFERENCE, 2004, Rio de Janeiro. Anais... Rio de Janeiro: IBP. 2004GONZÁLES, M.T., MOLINA-SABIO, M., RODRIGUEZ-REINOSO, F., Steam activation of olive stone chars, development of porosity (1994) Carbon, 32 (8), pp. 1407-1413. , Oxford, vGREGG, S.J., SING, K.S.W., (1982) Adsorption, surface area and porosity, , 2. ed. London: Academic PressReporting physisorption data for gas solid systems with special reference to the determination of surface-area and porosity: Recommendations 1984 (1985) Pure and Applied Chemistry, 57 (4), pp. 603-619. , INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY, Research Triangle Park, vJANKOWSKA, H., SWIATKOWSKI, A., CHOMMA, J., (1991) Active carbon, , New York: Ellis HorwoodJANSSEN, H.R., ROUSSEL, K., Petroleum coke (1991) Ullmann's encyclopedia of industrial chemistry, A19, pp. 235-239. , New York: VCHLEE, S.H., CHOI, C.S., Chemical activation of high sulfur petroleum cokes by alkali metal compounds (2000) Fuel Processing Technology, 64 (2-3), pp. 141-153. , Amsterdan, v, AprLILLO-RÓDENAS, M.A., CAZORLA-AMORÓS, D., LINARES-SOLANO, A., Understanding chemical reactions between carbons and NaOH and KOH. An insight into the chemical activation mechanism (2003) Carbon, 41 (2), pp. 267-275. , Oxford, v, FebLOZANO-CASTELLÓ, D., LILLO-RÓDENAS, M.A., CAZORLAAMORÓS, D., LINARES-SOLANO, A., Preparation of activated carbons from Spanish anthracite. I: Activation by KOH (2001) Carbon, 39 (5), pp. 741-749. , Oxford, v, AprLOWELL, S., SHIELDS, J.E., (1991) Powder surface area and porosity, , 3. ed. London: Chapman and Hall, 268 pMANTELL, C., Cokes, L., (1968) Carbon and Graphite Handbook, pp. 143-161. , New York: InterscienceMARSH, H., (1989) Introduction to carbon science, , London: ButherwortsMARSH, H., YANTOM, D.S., O'GRADY, M., WENNERBERG, A., Formation of active carbons from cokes using potassium hydroxide (1984) Carbon, 22 (6), pp. 603-611. , Oxford, vOTAWA, T., NOJIMA, Y., MIYAZAKI, T., Development of KOH activated high surface area carbon and its application to drinking water purification (1997) Carbon, 35 (9), pp. 1315-1319. , Oxford, vPIS, J.J., PARRA, J.B., PUENTE, G., RUBIERA, F., PAJARES, J.A., Development of macroporosity in activated carbons by effect of coal preoxidation and burn-off (1998) Fuel, 77 (6), pp. 625-630. , Amsterdan, vROUQUEROL, J., Recommendations for the Characterization of Porous Solids (1994) Pure and Applied Chemistry, 66 (8), pp. 1739-1758WALKER, W., (1968) Chemistry and Physics of Carbon, , New York: Marcel DekkerAgência Nacional do Petróleo, Gás Natural e Biocombustíveis. Anuário estatístico brasileiro do petróleo e do gás natural 2003. Disponível em: Acesso em: 4 jun. 200