Axial dispersion and hold-up in a bench-scale trickle-bed reactor at operating conditions

✍ Scribed by Demitris Tsamatsoulis; Nikos Papayannakos

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 594 KB
• Volume: 49
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(94)80052-9

✦ Synopsis

R~csponse curves of a tracer step increase and decrease were derived and usad to evaluate liquid flow non-idatities and hold-up in a bench-s&r: reactor by tha a&l d&per&n mudcl. Real fcc& end vpzraling oclnditinns usEd in calalytic hydrotreatment wcrc employed in cxpcrimcntation. Dilutd and non-diluted beds were prepared with non-porous extrudates of commercial catalyst dimensions and crushed particles. Three types of boundary condttions ruere tested to estimate axial dispersion coefficients and hold-up. The dependence of D, and h, on the bed particle six and liquid velocity is cxrmincd. & was found to k B function r,f lxd chrracteristics.