CSTR Pressure Relief Valve: Liquid Phase Reactions

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Discussion Overview

The discussion revolves around the necessity of a pressure relief valve in a Continuous Stirred Tank Reactor (CSTR) operating at 4 atm during a liquid phase homogeneous reaction, specifically an esterification reaction involving free fatty acids and methanol. Participants explore the implications of pressure management in this context.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the necessity of a pressure relief valve in the CSTR, asking what would vent out if the system contains only liquid.
  • Another participant seeks clarification on the type of liquid involved in the reaction.
  • A participant specifies that the reaction is for esterification, producing fatty acid methyl esters (FAME) from free fatty acids and methanol.
  • A reference to literature is provided, suggesting that vapor pressures of the esters may be relevant to the discussion.
  • One participant asserts that all pressure vessels require a pressure relief valve and suggests that methanol vapor would likely be vented if pressure exceeds safe levels.
  • A later reply expresses concern about the design of equipment for a potentially explosive process, advising the original poster to seek professional guidance.

Areas of Agreement / Disagreement

Participants express differing views on the necessity and implications of a pressure relief valve, with no consensus reached on the specific requirements for the CSTR in question.

Contextual Notes

There is uncertainty regarding the specific conditions under which the reaction occurs, including the behavior of the liquid phase and the potential for vapor generation. The discussion does not resolve the technical details related to pressure management in this context.

princessme
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There is a liquid phase homogeneous reaction going on in an CSTR, which operates at 4 atm. Is it necessary to have pressure relief valve? If so, what will be vent out when the pressure exceeds, since it contains liquid only?
 
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"Liquid" what?
 
Bystander said:
"Liquid" what?

It's for esterification reaction. Free fatty acid + methanol to produce FAME.
 
All pressure vessels require a pressure relief valve (and possibly a vacuum relief valve). Sounds like you'd be venting mainly methanol vapor.
 
You are designing equipment for a potentially explosive process without having any technical knowledge at all . I would strongly advise you to get help from professionals with experience in your field before proceeding further .
 

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