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One-step hydrodeoxygenation of palm oil to isomerized hydrocarbon fuels over Ni supported on nano-sized SAPO-11 catalysts

“…Thus their application as blend stocks is limited and requires using cold-flow improving additives. A favorable solution depends on the second hydro-isomerization of the pre-produced n-alkanes from HDO of vegetable oils over metal supported acidic zeolite catalysts [11,17,18]. Considering economic factor and process efficiency, one-step production of isomeric hydrocarbons by coupling HDO of vegetable oils and isomerization of long nalkanes in one reactor is extremely favorable for this processing.…”

Synthesis, Characterization and Hydroisomerization Performance of SAPO-11 Molecular Sieves with Caverns by Polymer Spheres

“…The unique features of the ten-ring tubular pore zeolites for hydroisomerization of long-chain n-alkane were ascribed to pore mouth and key-lock catalysis in pore openings [6][7][8][9]. The bulky long-chain hydrocarbons would diffuse only a short distance from the external surface into the pore mouths of sieve crystals and the reaction intermediate is hardly formed within the one-dimensional small pores.…”

Skeletal isomerization of octadecane on bifunctional ZSM-23 zeolite catalyst

“…Platinumplated, proton exchanged aluminosilicate zeolites with TON framework type such as Pt/ZSM-22 and Pt/Theta-1 are representative of this family of zeolite materials. Several studies were devoted to the skeletal isomerization of long n-alkanes on TON type zeolites [2][3][4][5][6][7][8][9]. With these zeolite catalysts, the branchings are methyl groups, generated at very specific carbon positions along the alkane chains as revealed in conversions of model n-alkanes with carbon numbers up to n-C 24 .…”