Activated carbons are widely used as adsorbents, 11 [1-4].Activated carbons are widely used as adsorbents, 12 *Corresponding Authors: Angela Martins, Departamento de Engenharia Química and 13 CIEQB, Instituto Superior de Engenharia de Lisboa, R. Conselheiro Emídio Navarro, 14 1959-007 Lisboa, Portugal; Tel: +351 218317000; Fax: +351 218317001; E-mail 15 address: [email protected]; Ana P....

The hydroisomerization of n-alkanes is an important step in the production high-quality bio-aviation kerosene. A SAPO-11 molecular sieve was synthesized using hydrothermal synthesis method, and a 0.5 wt% Pt/SAPO-11 catalyst prepared impregnation method. crystal phase, pore structure, acidity, morphology were characterized via X-ray diffraction, N2 adsorption-desorption, NH3 temperature-programm...

The surfaces of molybdenum carbide were varied by changing the carburization temperature between 823 and 1123 K. The surfaces of the catalytic material were investigated using in-situ temperature program carburization followed by temperature program reduction and oxidation. In-situ temperature program oxidation (TPO) showed the surfaces of the catalysts contain a similar amoun...

In this work, chemically treated microcrystalline cellulose (MCC-C) was extracted from coconut husk fiber. order to extract hemicellulose, the sieved fiber with sodium hydroxide (NaOH) for dewaxing and acidified using chlorite (NaClO2) residual lignin (bleaching process). The obtained lignin-free then potassium (KOH). characterizations used equate MCC-C commercial grade (MCC) are solubility tes...

Catalysts based on zirconia- and alumina-supported tungsten oxides (15 wt % W) with a small loading of platinum (0.3 Pt) were selected to study the influence reduction temperature nature support hydroisomerization n-dodecane. The has major metal dispersion, which impacts catalytic activity. In addition, alumina zirconia supports show different properties (mainly acid site strength surface area)...

BACKGROUND The metal–acid bifunctional catalysts are widely used in many industrially significant chemical processes, including hydroisomerization of n-hexane. Deactivation and regeneration extrudates was investigated continuous n-hexane a fixed-bed reactor. Four Pt/H-Beta-25 containing 30% Bindzil binder were prepared with the same composition controlled metal deposition. RESULTS Different pre...

Large-pore microporous materials are of great interest to process bulky hydrocarbon and biomass-derived molecules. ITQ-27 (IWV) has a two-dimensional pore system bounded by 12-membered rings (MRs) that lead to internal cross-sections containing 14 MRs. Investigations into the catalytic behavior of aluminosilicate (zeolite) materials with this framework structure have been limited until now due ...