Effect of Feed Distribution on Hydrocracking of Fischer-Tropsch Wax

被引:0
作者
Calemma, Vincenzo [1 ]
Gambaro, Chiara [1 ]
机构
[1] Eni SpA, R&M Div, I-20097 San Donato Mil Se, Italy
来源
SYNTHETIC LIQUIDS PRODUCTION AND REFINING | 2011年 / 1084卷
关键词
LIQUID-PHASE HYDROCONVERSION; N-ALKANE MIXTURES; ZEOLITE CATALYSTS; VAPOR-PHASE; HYDROISOMERIZATION; ADSORPTION; HYDROCARBONS; PARAFFINS; PRODUCTS; CRACKING;
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Two Fischer-Tropsch waxes having a different chain length distribution (i.e. heavy wax with C22+: 73%; light wax with C22+: 36%) have been subjected to hydrocracking. The tests were carried out in the range of temperature and pressure of 616-648 K and 3.5-6.0 MPa respectively. The catalyst used was platinum (0.6%) on amorphous silica-alumina. Hydrocracking reaction led in both cases to an increase of middle distillate yields and maximum values achieved was 80-85%. The results obtained show a strong effect of feed carbon distribution on isomer content of hydrocracking products. Particularly, it was found that C5-9 and middle distillate (C10-22) fractions from the heavy feed have a higher isomerization degree than the products from the light feed. The higher isomer content of products from heavier Fischer-Tropsch wax was explained in terms of currently known hydrocracking reaction pathways of n-paraffins and vapour-liquid equilibrium in the reacting system.
引用
收藏
页码:239 / 253
页数:15
相关论文
共 30 条
[1]  
Anderson RB., 1984, FISCHER TROPSCH SYNT
[2]   Fischer-Tropsch Waxes Upgrading via Hydrocracking and Selective Hydroisomerization [J].
Bouchy, C. ;
Hastoy, G. ;
Guillon, E. ;
Martens, J. A. .
OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES, 2009, 64 (01) :91-112
[3]  
Ca lemma V., 2005, CHEM ENG T, V6, P849
[4]   Hydroconversion of Fischer-Tropsch waxes: Assessment of the operating conditions effect by factorial design experiments [J].
Calemma, V ;
Correra, S ;
Perego, C ;
Pollesel, P ;
Pellegrini, L .
CATALYSIS TODAY, 2005, 106 (1-4) :282-287
[5]  
Calemma V., 2001, Studies in Surface Science and Catalysis, V136, P307
[6]   Middle distillates from hydrocracking of FT waxes: Composition, characteristics and emission properties [J].
Calemma, Vincenzo ;
Gambaro, Chiara ;
Parker, Wallace O., Jr. ;
Carbone, Rosa ;
Giardino, Roberto ;
Scorletti, Pietro .
CATALYSIS TODAY, 2010, 149 (1-2) :40-46
[7]  
Collins J.P., 2006, J. Nat. Gas Chem, V15, P1
[8]  
Dancuart LP, 2004, STUD SURF SCI CATAL, V152, P482
[9]   Competitive physisorption effects in hydroisomerisation of n-alkane mixtures on Pt/Y and Pt/USY zeolite catalysts [J].
Denayer, JF ;
Baron, GV ;
Jacobs, PA ;
Martens, JA .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2000, 2 (05) :1007-1014
[10]   Hydrocracking of n-alkane mixtures on Pt/H-Y zeolite: Chain length dependence of the adsorption and the kinetic constants [J].
Denayer, JF ;
Baron, GV ;
Souverijns, W ;
Martens, JA ;
Jacobs, PA .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1997, 36 (08) :3242-3247