tubular loop reactor aka spheripol reactor

[Motorbreath]

hi, i want to ask if anyone knows where can i find any information about the cost of this type of reactor
i've been searching everywhere but no luck, even tried sending a email to lyondellbasell but was ignored -_-


thanks in advance

 

[racookpe1978]

How large (torus tube dia, outside diameter of torus, total volume required, pressure required, wall thickness, "pipe" material, inlet/outlet, cross flow requirements)?

Fabrication COST (underline, bold, italics, red color to emphasize!) is the real key. It is extremely expensive to fabricate a very large high pressure torus by rolling the individual plates: Not impossible, but more expensive than a sphere. Least expensive pressure head is the "standard" flanged and dished for that reason. Even half-spheres are expensive compared to the F&D. Now, if you can get by with buying 4x simple 90 degree butt-weld short radius pipe elbows ....

Also: How are you going to get in and out: Most "ideal" torus designs don't include the large manway and piping welds that add to expense and reduce theoretical wall strength at each complex joint. Again, not impossible, but you need to figure that reinforcement at EVERY non-optimum positions.

Also: If your intention is to create an ideal torus get as high a pressure as possible with as little metal as possible (low wall thickness) you now have much more "wall" area on the torus than a sphere.

 

[Motorbreath]

well, this kind of reactor are very large, the example that i have is about 32 m long tube in loop with ID:0,57m OD:0,61 made of carbon steel at 70ºC and 35 bar
but what i need can be any size, and that is a reference of how much can cost to acquire this kind of reactor for polypropylene production

 

[moltenmetal]

The reactor is only part of it: I believe there's a very expensive, very specialized PUMP in there too...

 

[Motorbreath]

i know, is what makes the fluid circulate in the wanted velocity on the loop
but even so it's been very difficult for me to find any concrete number of how much it cost even the ones that have been already sold to the existing polypropylene manufacturers, just so i can have an idea of it's price

 

[moltenmetal]

Good luck- this is specialized and proprietary stuff. It's tough to find for a reason...