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animation of the BP explosion http://www.csb.gov/index.cfm?folder=video_archive&page=index

another alternate: add a column enter 1 2 1 2 do a sort, and delete the 2's

Interesting article, thanks, I will pass it on to the process engineer, it should keep him busy awhile.

one of the first thoughts was to "bolt" the blanking plates to the Cast Iron, drill and tap I guess. Then they thought about filling tubes with refractory, and decided that this would be hard to reverse, and the weight might be prohibitive. Then the plates welded to the channels, and...

The tubes are bolted to a channel, and they show seal welding the plate to the channel using angle iron. (the logic for the seal weld, is so that air does not leak into the stack and condense high sulphur flue gas What type of problems have you seen on plugging C.I. tubes.

The plan is to weld in plates to seal each row. We are not sure if any are leaking at this time. They want to be able to reverse the process if possible.

We have a furnace with a Hamon air preheater, with 5 banks of tubes, They are planning to blind both ends of a cast iron "tube" bank in an existing air pre-heater. The tube bank is 2'x11'x10' and they are assuming half of this volume is being blinded. The concern is that if the tube...

They are planning to blind both ends of a cast iron "tube" bank in an existing air pre-heater. The tube bank is 2'x11'x10' and they are assuming half of this volume is being blinded. The concern is that if the tube is not leaking, that the pressure will build up inside during heat...

Ethylene balanced bellow relief valves, discharging to plant flare system. Plant wanted platforms so that they could safely access relief valves. They need access, to handle steam lances, to thaw valves after they relieve, the valves do not close, and are covered with ice. After melting the...

With a multistage centifigal pump, hydrocarbon, NPSHr 18, SG .5, being fed from another pump (two pumps in series). Does the maximum suction velocity guidlines apply to the second pump. If so why. Start up? Bubbles? Erosion?