Hi Modianurag,
The life of a glass-lined(GL) reactors may be dependent on each service condition. User guidelines provided by GL equipment manufacturer would be helpful basically. Along with the basic guidance the following practice from my experience must be kept in mind:
i. Avoid sudden thermal shock by injecting cold liquid especially on the GL wall around nozzles; use feed nozzle 'insert' extended to drop liquid on the liquid surface.
ii. Avoid steam hammering in the jacket or coils. Hammering would be the most harmful to GL walls; Jackets or coils may be surely filled with cold condensate under vacuum. Complete draining of condensate, and steam purging shall surely be included in the operating sequence before supplying steam.
iii. Gas or vapor (either cold or hot) injection to the bulk liquid phase could generate supersonic vibration - use suitable diffuser on the tip of the injection nozzle.
iv. High temperature alkaline materials, phosphoric acid,etc can usually damage the GL surface gradually during long time service period; periodical surface check is essential.
v. Initial perfect quality check seems essential - proper mild steam surface treatment, good selection of primer and frit, multiple frit applying to prove the absence of pinholes, complete surface flawlessness tests are to be fulfilled by the 'good' vendor.
If you have your own particular service features in the GL reactor, introduce them and ask more in detail to discuss and solve the problem with the professionals.
~Stefano
Edited by sgkim, 25 December 2016 - 07:57 PM.