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Process Puzzler: Sort Out a Steam Condensate System

2013-10-07 15:39:00| Chemical Processing

Readers suggest ways to address water hammer and other problems.

Process Puzzler: Veto the Proposed Vent Scrubber

2013-07-31 06:00:00| Chemical Processing

THIS MONTH'S PUZZLER We're trying to settle a dispute between our on-site contractor and the company designing a vent scrubber for our alkylation spent acid tanks. The design basis is a flow of 3,500 pounds per hour (pph) of a stream containing H2S (about 60 pph), N2, water, O2, 1,3...

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Process Puzzler: Go With Agglomeration

2013-06-27 06:00:00| Chemical Processing

THIS MONTHS PUZZLER Our polyphenylene ether (PPE) process generates a lot of dust and PPE resin is a severe fire hazard. Im tasked with figuring out a way to collect and reprocess this dust. Im considering agglomeration.

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Process Puzzler: Restore Reboiler Reliability

2013-05-30 06:00:00| Chemical Processing

THIS MONTH'S PUZZLER We're having trouble with the vertical thermosiphon reboiler of the debutanizer column of our fluid catalytic cracker (FCC). The heating medium is the fractionation column bottoms, which arrive at the reboiler shell at a nominal 297°F, following cooling from 682°F in a steam-generating kettle reboiler at the...

Tags: process reliability restore puzzler