Process for making catalyst inventory measurements and...

Details Process for making catalyst inventory measurements and... Process for making catalyst inventory measurements and...

C - Chemistry, Metallurgy

10

G

196/1

C10G 47/24 (2006.01) C10G 49/26 (2006.01)

Patent

CA 2028790

The inventive procedure more accurately maintains an inventory of a catalyst in an ebullated bed of a reactor in an oil refinery, especially a resid hydrotreating unit. The ebullated catalyst bed has therein three phases (catalyst, oil, gas). A first density measurement is made of the two- phase mixture in a freeboard zone i.e. of gas and oil in a catalyst free area above the ebullated catalyst. A second density measurement is made in the catalyst bed where all three phases are present. Density measurements are used, along with predetermined values for vapor, liquid, and soaked particle densities and corrections for gamma-ray absorption coefficients, in order to calculate the catalyst particle holdup in the vessel. From this, the amount of catalyst actually in the reactor can be calculated. Once this amount is known, fresh catalyst may be added to or spent catalyst may be removed from the reactor in order to maintain a fixed catalyst inventory within the catalyst bed.

Affiliated with

Also associated with

Rating

Process for making catalyst inventory measurements and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for making catalyst inventory measurements and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making catalyst inventory measurements and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1898583