Reactivation of spent pd/ac catalyst by supercritical co2 fluid extraction

AIChE Journal

Volumn 55, Issue 9, 2009, Pages 2382-2388

  Zhang, Xiaoxin ^a   Zong, Baoning ^a   Qiao, Minghua ^b  

^a RESEARCH INSTITUTE OF PETROLEUM PROCESSING   (China)

^b FUDAN UNIVERSITY   (China)

Author keywords

Benzoic acid; Hydrogenation; Pd AC; Reactivation; Supercritical CO2 fluid

Indexed keywords

AS EXTRACTION; BENZOIC ACID; ENVIRONMENTALLY-FRIENDLY; FLUID EXTRACTION; GRANULE SIZE; INDUSTRIAL UNITS; LASER PARTICLE SIZE ANALYSIS; NON DESTRUCTIVE; ORGANIC SUBSTANCES; PD/AC; REACTIVATION; SUPERCRITICAL CO; SUPERCRITICAL CO2 FLUID; TRANSMISSION ELECTRON;

CATALYSIS; ELECTRON SPECTROSCOPY; FLUIDS; HYDROGENATION; PALLADIUM; PARTICLE SIZE; PARTICLE SIZE ANALYSIS; PHYSISORPTION; SOLVENT EXTRACTION;

CATALYSTS;

EID: 69049089182     PISSN: 00011541     EISSN: 15475905     Source Type: Journal    
DOI: 10.1002/aic.11840     Document Type: Article

References (22)

1. Blaser HU, Indolese A, Schnyder A, Steiner H, Studer M. Supported palladium catalysts for fine chemical synthesis. J Mol Catal A. 2001;173:3-18.
2. Toebes ML, van Dillen JA, de Jong KP. Synthesis of supported palladium catalysts. J Mol Catal A. 2001;173:75-98.
3. Grove DE. 5% Pd/C-precise but vague. Platinum Metals Rev. 2002;46:1.
4. Weissermel H, Arpe HJ. Industrial Organic Chemistry, 3rd ed. Weinheim: VCH, 1997: 256-257.
5. Konyukhov VY, Kul'kova NV, Temkin MI. Kinetics of the hydro- genation of benzoic acid. Kinet Catal. 1980;21:496-500.
6. Konyukhov VY, Genkina IM, Perazich DI, Kul'kova NV, Temkin MI. Kinetics of the hydrogenation of molten benzoic acid on a palladium catalyst. Kinet Catal. 1984;25:482-487.
7. Jackson SD. Processes occurring during deactivation and regeneration of metal and metal oxide catalysts. Chem Eng J. 2006;120:119-125.
8. Zong BN, Zhang XX, Qiao MH. Integration of methanation into hydrogenation process of benzoic acid. AIChE J. 2009;55:192-197.
9. Grajek H. Regeneration of adsorbents by the use of liquid, subcriti- cal and supercritical carbon dioxide. Adsorp Sci Technol. 2000;18: 347-371.
10. Savage PE, Gopalan S, Mizan TI, Martino CJ, Brock EE. Reactions at supercritical conditions: applications and fundamentals. AIChE J. 1995;41:1723-1778.
11. Grunwaldt JD, Wandeler R, Baiker A. Supercritical fluids in catalysis: opportunities of in situ spectroscopic studies and monitoring phase behavior. Catal Rev. 2003;45:1-96.
12. Tiltscher H, Wolf H, Schelchshorn J. A mild and effective method for the reactivation or maintenance of the activity of heterogeneous catalysts. Angew Chem Int Ed. 1981;20:892-894.
13. Subramaniam B, McCoy BJ. Catalyst activity maintenance or decay: a model for formation and desorption of coke. Ind Eng Chem Res. 1994;33:504-508.
14. Niu FH, Kolb G, Hofmann H. Deactivation kinetics and modelling of coke removal under supercritical conditions for the example of ethylbenzene disproportionation. Chem Eng Technol. 1995;18:278-283.
15. Clark MC, Subramaniam B. Extended alkylate production activity during fixed-bed supercritical 1-butene/isobutene alkylation on solid acid catalysts using carbon dioxide as a diluent. Ind Eng Chem Res. 1998;37:1243-1250.
16. Thompson DN, Ginosar DM, Burch KC, Zalewski DJ. Extended catalyst longevity via supercritical isobutene regeneration of a partially deactivated USY alkylation catalyst. Ind Eng Chem Res. 2005;44: 4534-4542.
17. Trabelsi F, Stuber F, Abaroudi K, Larrayoz MA, Recasens F, Sueiras JE. Coking and ex situ catalyst reactivation using supercritical CO2: a preliminary study. Ind Eng Chem Res. 2000;39:3666-3670.
18. Dabek L, Swiatkowski A, Dziaduszek J. Studies on the utilisation of spent palladium-activated carbon (Pd/AC) catalysts. Adsorp Sci Technol. 2002;20:683-689.
19. Dabek L, Swiatkowski A, Dziaduszek J. Application of supercritical fluid extraction to regenerate spent Pd-active carbon catalyst. Environ Prog. 2007;26:360-364.
20. Wan HD, Zhang XX, Zong BN. Preparation, deactivation and regeneration of Pd/C catalyst in hydrogenation of benzoic acid. Chem Ind Eng Prog. 2004;23:188-191.
21. Zhang XX, Zong BN, Meng XK, Mu XH, Min EZ. Regeneration of deactivated Pd/C catalyst by supercritical CO2 extraction. Petrochem Technol. 2006;35:161-164.
22. Peng DY, Robinson DB. A new two-constant equation of state. Ind Eng Chem Fundam. 1976;15:59-64.