Ramna MSB 142 Department of Chemical Engineering IIT
![Ramna MSB 142 Department of Chemical Engineering IIT Madras Chennai 600 036 ramna[at]iitm[dot]ac[dot]in](https://slidetodoc.com/presentation_image/42107def1f544f21a5834a06e30c2e52/image-1.jpg "Ramna MSB 142 Department of Chemical Engineering IIT Madras Chennai 600 036 ramna[at]iitm[dot]ac[dot]in")
Ramna MSB 142 Department of Chemical Engineering IIT Madras Chennai 600 036 ramna[at]iitm[dot]ac[dot]in
We’ll talk about • • Chemical industry Reactors Forces, Masses and Transport Holes (pores) and space around them What gets in & gets out Langmuir & Hinshelwood Weisz & Boudart Rules of Thumb
We’ll use analogies • Chemical industry & making money • Reactors & saving money • Forces, Masses, Transport & understanding • Holes (pores) and space around them – IITM • What gets in & gets out – Dogs, deer, humans & trees
Chem. Tech, 1995, 25(6), 6
A question of length - The goof up at 10 -16 m Lerou and Ng, Chem. Engg. Sci. , 1996, 51(10), 1595 -1614.
The “whole” picture Sapre and Katzer, IECR, 1995, 34, 2202 -2225.
Extreme reactors Stitt, Chem. Engg. Journal, 2002, 90, 47 -60.
Bubbles, liquids and gases Stitt, Chem. Engg. Journal, 2002, 90, 47 -60.
Gravity – where art thou? Agar, Chem. Engg. Sci. , 1999, 54, 1299 -1305
![Some of the following slides are from Michelle Cohn [1] and Robert Jensen[2] of](http://slidetodoc.com/presentation_image/42107def1f544f21a5834a06e30c2e52/image-10.jpg "Some of the following slides are from Michelle Cohn [1] and Robert Jensen[2] of")
Some of the following slides are from Michelle Cohn [1] and Robert Jensen[2] of UOP LLC presented at CPAC Meeting, May 2003 and CHEMRAWN XV, Aug 2003 respectively
Fluid Catalytic Cracking (FCC) breakup ‘ala Unit Ops Shinnar, IECR, 2004, 43, 246 -269
Fluid Catalytic Cracking (FCC) breakup ‘ala more Unit Ops Shinnar, IECR, 2004, 43, 246 -269
A tough problem Sapre and Katzer, IECR, 1995, 34, 2202 -2225
![Chemistry of petrol, diesel, gasoline, motor oil [2]](http://slidetodoc.com/presentation_image/42107def1f544f21a5834a06e30c2e52/image-16.jpg "Chemistry of petrol, diesel, gasoline, motor oil [2]")
Chemistry of petrol, diesel, gasoline, motor oil [2]
Evolution of chemical reactor technology towards left and corner as we want things to go faster Gembicki et al. , Chem. Engg. Sci. , 2003, 58, 549.
Shrinking volumes Stitt, Chem. Engg. Journal, 2002, 90, 47 -60.
What goes in and what comes out? Weitkamp J. , Solid State Ionics, 2000, 131, 175 -188
What goes in and what comes out? Weitkamp J. , Solid State Ionics, 2000, 131, 175 -188
Evolution of pure thought Molecular processes pervade all human activities including life itself. They are part of a large jigsaw puzzle. Its pieces first generate partial images that we recognize within designated "disciplines". Only later (now? ) we recognize their inevitable interconnectiveness. The total picture will never be complete. But a personal voyage across boundaries - relying just on the most basic laws of science as the jigsaw pieces - illustrates some broader insights and points to new existing challenges, from chemical engineering processes to biology, medicine, environment, economics and society as a whole. Paul B Weisz, Robb Lecture, November 1, 2001, Penn State
Order of magnitude Weisz P. B. , Chem. Tech, p 424, July 1982, Windows on Reality
Hold onto your job!! Concentration (mol/l) Paul B Weisz, Nature, 1962, 4843, 772 -774 nm ----- micrometer Note: nano was called millimicro (mm in right) before fashion took over
- Slides: 23
