Transcription of CHAPTER 7: Fixed-Bed Catalytic ReactorsI
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CHAPTER 7: Fixed-Bed Catalytic ReactorsI
CHAPTER 7: Fixed-Bed Catalytic Reactors ICopyright 2022 by Nob Hill Publishing, LLCIn a Fixed-Bed reactor the catalyst pellets are held in place and do not move withrespect to a fixed reference and energy balances are required for both the fluid, which occupies theinterstitial region between catalyst particles, and the catalyst particles, in which thereactions following figure presents several views of the Fixed-Bed reactor. The speciesproduction rates in the bulk fluid areessentially zero. That is the reason we areusing a / 161 CHAPTER 7: Fixed-Bed Catalytic Reactors IICopyright 2022 by Nob Hill Publishing, LLCBAcjsDCcjcjTR T cjFigure : Expanded views of a Fixed-Bed / 161 The physical pictureEssentially all reaction occurs within the catalyst particles.
uence the overall rate of reaction in the pellet. The other steps are inherently faster than the slow step(s) and can accommodate any change in the rate of the slow step. The system is intraparticle transport controlled if step 2 is the slow process (sometimes referred to as di usion limited).
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