![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#31
|
|||
|
|||
![]()
On Tue, 8 Jun 2004 13:15:39 +0100, "Keith Willshaw"
wrote: "Peter Skelton" wrote in message .. . On Tue, 8 Jun 2004 09:19:06 +0100, "Keith Willshaw" wrote: Keithe, you snipped the relevant passage abovve, and snipped the spot where I repeated it below in explanation. That is bloody well not honest. Are you Brooks or Fred? I responded to your claim that no such explosion occurred with an excerpt from the report No, you did not. You did exactly what I claimed you did. Go on back and look. (Keith knows damn well ther wasn't a fifty to vapour cloud. From the report "Conditions at point of rupture : 8 bar pressure, 150 degrees Celsius. Some 40-50 tonnes of cyclohexane escaped in about one minute. There had been a state of alert for nearly an hour, since the detection of the fire on the 8" main, but the second and catastrophic failure proceeded rapidly. Detonation appears to have taken place before any alarm was raised." That's long since been discredited. The total loss form the process including the fire was 50 tonnes. You should know this. that's the total lost in teh accident, including the fires which lasted days. From the report "The feedstuff for the process was a highly combustible cyclic hydrocarbon, some four hundred tonnes of which would fuel the subsequent fire" He also knows that proper valving would hav limited the loss, there's still quite of material in the pipe, but nothing like fifty tons and there woldn't be pressure to drive it. The report states otherwise I think he's also ware that fitting a bellows at all is now considered to be the main problem, the DuPont reports (public domain BTW and a professional would have seen them) suggest that a three angle loop would be much more secure. I'm aware that fitting an incorrectly anchored bypass was the problem, as the report states "The bypass pipe was fixed at either end to the bellows, but the scaffolding was used to support the bypass pipe proved to be inadequate, and the pipe was free to squirm when the pressure increased. " I see you're single-sourced on this. Shall we explore the controversy surrounding the decision not to investigate further? D. doesn't use bellows. His suggestion that the line fence is important compared to distance is ludicrous, as is his suggestion that Cyane would probably oxidize in contact with air. I doubt any chamical engineer would not be aware that cyane and cyclohexane are the same thing. I could continue, but that's enough on this sequence/ If you believe cyclohexane wont oxidise how do you explain the fact that it did do so ? (hint the process is commonly called burning). Oxidize is your term, I did you te courtesy of using it. Cyane, as you certainly should know, does not burn spontaneously at 150 C). It requires an ignition source. (The autoignition temperature is 250 celcius) Osha disagrees with you about it anyway http://www.osha.gov/SLTC/healthguide...cognition.html quote from your source: 2. Autoignition temperatu 245 degrees C (473 degrees F) If you're going to use a source to disagree with me, you should select one that does not agree with me. He misread my original comment, has neither supported his reading, nor answered my call on that subject. He stays resolutely away from the subject. This is a flat lie Is it? Then tell me where you answered. His original furnace suggestion remains ludicrous. I explained why, he snipped the explanation then, a few posts later, came basck asking for a discussion. When I mentioned that I'd already explained, he simply lied. The comment about a furnace line was a simple example of the hazards of ruptured lines. You are twisting and turning like Tarver at his worst ???? It happened exactly the way I said it happened. YOu tried to twist something and got called on it. Keith, you might be a pro, but you didn't show it here.) And now the Ad Hominem a la Tarver Tell me how you showed your professionalism. (Incidentally you've been in mode as hominem for a while.) Peter Skelton |
Thread Tools | |
Display Modes | |
|
|