High Pressure/Flow Acidic Slurry 2

[JRLAKE]

I need to pump a 3.5% sulfuric acid / 20% wood pulp slurry. Flow needs to be variable from 1 GPM to 800 GPM and will be injected into a reactor at 400 PSI. Temperature of the slurry is 140 degrees F.

We are currently using a Seepex progressive cavity pump for 1 GPM injection but we need to increase flow and I have concerns about the reliability of these types of pumps.

Anyone have any suggestions?

 

[chief]

Check out Halliburtons HT400 recip, Dowell schlumberger and Calder. All used in the oilfield to pump a variety of slurries ,cement,acid fracturing slurries etc. Use a VFD drive for best control.

Offshore Engineering&Design

 

[Artisi]

JRLAKE the pumping of 20% paper stock now-a-days is not really a problem as there are a number of companies marketing thick stock pumps, - your problem which you are probably well aware is the 400PSI and the amount of turndown. I would think the leads given by "chief" are you best bet at this stage.

 

[ApC2Kp]

JRLAKE,

The Munsch centrifugal pump of solid HDPE casing would be right at its maximum temperature limit and could withstand the corrosion of the weak acid.

The Wirth diaphragm pumps have some very large sizes in mining slurry applications and could deliver the 400 psig. You would need to explore what materials they could offer for the weak acid service.