Dear Forum members,
we have a electric heater for super heating C4 stream (routine) for regenerating driers in C4 isomerization unit (UOP). we need to carry out a special procedure for stripping out sulfur (temporary poison) from butamer reactors with hydrogen as regenerant with same heater. Heater has trip&permissive on high element temperature and low flow through the heater. The low flow trip @7mtpd for normal operation, where as the maximum flow for the sulfur stripping procedure is 3mtpd. To have this operation we need to freeze this reading from engineering station.
what is the importance of low flow trip?
is it for protecting element from over heating?
if so , is high temperature trip is not suffiecient ?
kindly help me in this regard and please share any information related to this topic and suggest any books for better understanding of the process electric heaters...
thanks and regards,
Edited by rajprocess, 02 November 2014 - 09:06 PM.