Document LgBOa1Yp2ZaDnwpqBYQzwZe5z

i l L V C M O T E H N E C 0 CHEMICALS, INC. G. I. Rozand R, Fanter AT Piscataway at piscataway Copolymer Continuous Stripper Oak August 17, 1977 for, n> D. c. Coldiron R. Donovan W. Gabel R. E. Harmond M. R. Hayraon J. K. Jacob F. X. Ritter J. T. Sweeney M. Wagshul As per your request,attached is a preliminary flow diagram and estimate for a continuous copolymer stripper at Flemington. The unit is designed to strip 100 MM lb/yr of copolymer slurry to 50 ppm VCM. The estimated cost of the unit, installed, is $1.2 million. This design and estimate are based on very little data and a lot of assumptions. Attached is a list of the assumptions and data that need to be verified. The stripping column itself is an exact duplicate of the ones being purchased for the Pasadena Plant. Those are for homopolymer use but should work for copolymer. Please note on the attached estimate that the cost of the column represents 50% of the total estimate. Therefore, no significant change can be made in the overall cost of the project unless the column cost is changed. The estimated cost of the column is the purchased price for one of the Pasadena columns and thus is a good estimate. RFF:db Robert F. Fanter COLOR!TE 007079 COPOLYMER CONTINUOUS STRIPPER OPERATING PROCEDURE Proposed operation of the unit would be as follows. 1. A batch is transferred out of a reactor into a stripper as normal. 2. The batch is recovered, or stripped down, to 15" Hg without the adding of steam; as normal. 3. The batch is transferred out of the stripper into the new surge tank. 4. The batch is heated from 140 to 160F in the surge tank. 5. Slurry is continually fed from the surge tank into the top of the stripping column at 72 gpm. It is heated up to 175 F by an inline steam injector. 6. The slurry falls down the column thru 36 dual flow trays while steam flows countercurrently up thru the trays. Each tray has 5.7 inches of slurry on it. It takes 20.2 minutes for the slurry to flow down the column. 7. The stripped slurry (50 ppm) flows out the bottom of the column through a flash pot into a transfer pump. 8. In the flash pot, the slurry is exposed to a vacuum created by a steam jet. This causes the slurry to flash off water and be cooled to 150F, preventing any further heat degradation. 9. The stripped, cooled, slurry is pumped into the existing blend tanks. COLORITE 007080 COPOLYMER CONTINUOUS STRIPPER ASSUMPTIONS AND DATA 1. A copolymer batch recovered to 15" Hg at 140F will contain 10,000 ppm VCM and 30,000 ppm VAM. A single sample gave these results. This should be verified by plant trials. 2. Copolymer slurry can be stripped at 212F without color or rheology degradation. This should be verified by plant trials. 3. Copolymer slurry at 212F and minimum agitation will not agglomerate. This could be checked out in the laboratory. 4. Copolymer slurry at 10,000 ppm VCM can be stripped at 175F. 5. The Flemington plant has the 5,200 lbs/hr of steam the unit will require. 6. The "Chip basket" problem can be resolved. 7. The local planning board at Flemington will allow installation of a 100' tall column. 8. The large steam rates used in the laboratory tests are not required. The preliminary design calls for 1/10 the steam rate used in the laboratory. COLOR!TE 007081 TENNECO, Tenneco Chemicals A Tenneco Company PROJECT TITLE COPOLYMER_________ _ ____________________ CONTINUOUS STRIPPER LOCATION _______Fleming ton____________ ASSET CAT. DESCRIPTION EQUIPMENT: Vacuum Pump Nash Model 202 Condensor ? 566 Ft CS/316 Surge Tk and Agitator 304. 15 psi. 13000 gal........... Column Feed Pump Cent. 80 GPM P 200' Column & Travs 4' Dia 93' 36 trays Flash Tank Bottoms Pump Cent. 80 GPM 0 200' ENGINEERING ESTIMATE Summary Sheet PAGE 1 OF x ESR NO _________ EST NO ________ DATE s/17/77 MATERIAL LABOR SUB CONTRACT TOTAL SM S S S 25 .13. 38 5 12.5 - 20 --5 Sub-Total Installation Factor 231 f- 5 _________________ Tnrai_____________________________ 1155 Say: $1.2 million PREPARED BY APPROVALS Wermuth PROJECT MGR. COST ENGINEER _______________________________ DIR. OF PROJECTS____ MGR. OF GEN. ENGR-------------------------------------------------------DIR. OF ENGINEERING ENG - 132 COLORITE 007082 lOXIOTOh INCH li'V & 7 no INCHES 46 1323 k*0E rm u s * KEUFFEL 6 E9SER CO, /6.5* COLOR!TE 007084 Y /a ~X./ TV ? Ts rrAf ,r ? * s' r;; S 7"/T' ** S irf t 7, Xo o 6aL (Joo Mi/tf/r- "*-4 A/cuj SojFSf I 8f-a > 13, ecu dt AL, /* /(- 'x 6 T# Af 7oo 7-^BB o T^^jM P t-- 7c S, P/i 7?c !7Jfr 3V2 rtw y/o.ooo PPM 'TCwftif *" */fP .-VjFW LOV^ i U A Fvv 7<- U --P, p //'*T1 v */#* ~B>- 56 -rFtffS 'ftO-Z. ft`'v OFA/C*