Document X7B2QmVMOLGD3Knpwye74akpB
GERALD, THANK YOU FOR PROVIDING FURTHER EXPLANATION OF YOUR CONCERN ABOUT THE PROCEDURE USED TO DUMP MOLECULAR SIEVE. I WANTED TO BRIEFLY DESCRIBE THE PROCESS THAT P l C USES TO DUMP MOLECULAR SIEVE FROM OUR ABSORPTION BEDS. EACH BED IS REGENERATED FOR AT LEAST 5 HRS AT 280 deg C. A PLOT PROFILE ON THE REGENERATION CYCLE IS OBTAINED TO ENSURE THAT THE BED WAS REGENERATED PROPERLY. THE BED IS THEN PADDED WITH NITROGEN (50 psig) AND THEN DEPADDED TO THE FLARE. THE BED IS PADDED AND DEPADDED THREE ADDITIONAL TIMES. A BLEED ON THE BED IS OPENED AND SNIFFED FOR COMBUSTIBLES. THE BED IS NOT OPENED UNLESS THE LEL IS LESS THAN 2%. IF THE LEL IS GREATER THAN 2%, THE BED IS REGENERATED AGAIN. AS THE MOLECULAR SIEVE IS DUMPED IT IS MOVED TO THE HAZARDOUS WASTE AREA AND PLACED IN FIBER PACKS. THE MOLECULAR SIEVE IS NOT WET AT ANY TIME DURING THE DUMPING PROCESS. THE MOLECULAR SIEVE CAN NOT BE REGENERATED IF IT IS WET. IN 1992 POLY C SAVED OVER $85,000 BY USING REGENERATED MOLECULAR SIEVE AS OPPOSED TO USING NEW MOLECULAR SIEVE EACH TIME THE MEDIA IN THE ABSORPTION BEDS WAS CHANGED. JERREL SMITH INFORMED ME THAT THE FORT NOW USES THE POLY C PROCEDURE FOR DUMPING MOLECULAR SIEVE FROM THEIR ABSORPTION BEDS. PLEASE INFORM ME OF ADDITIONAL PRECAUTIONS THAT OTHER PLANTS TAKE IN REGARD TO DUMPING MOLECULAR SIEVE. IF YOU HAVE ANY QUESTIONS, PLEASE CALL ME AT 353-6255 OF VAX ME AT LACSDC::U097151. THANKS, AUDRA D. WILLIAMS
A 018047 C0NFTDNttal
REGENERATED MEDIA 1992
#***#* #********)
REGENERATED MEDIA USED IF NEW MEDIA WERE USED DISPOSAL COST SAVINGS
RAR 5/27/93
$64,800 *125, 824
*24, 706 *85, 730
00 A 018048 CONFTDFNTIAL
MEDIA PRICES FDR MEDIA CHANGE
* # #* # #-K-tt*
fr
Y-211-A
7200# ~ 1/16" 13X PG MOLECULAR SIEVE - *1. 79/# 275# - 1/8" 13X PG MOLECULAR SIEVE - *2. 58/#
1600# - 1/8" F--2 00 ACTIVATED ALUMINA - *. 68/#
SUB TOTAL
*12,888 * 710 * 1,088
*14.686
(*5, 400) (* 710) (*1,200)
(*7,310)
Y-211-B
7200# - 1/16" 13X PG MOLECULAR SIEVE ~ *1. 79/# 275# - 1/8" 13X PG MOLECULAR SIEVE - *2. 58/#
1600# - 1/8" F--200 ACTIVATED ALUMINA - *. 68/#
SUB TOTAL
*12,888 * 710 * 1,088
*14,686
(*5,400) (* 710) (*1,200)
(*7, 310)
Y-6U-A
7200# - 1/16" 13X PG MOLECULAR SIEVE - *1. 79/# 275# - 1/8" 13X PG MOLECULAR SIEVE ~ *2. 58/#
1600# - 1/8" F-2 00 ACTIVATED ALUMINA - *. 68/#
SUB TOTAL
*12, 888 * 710 $ 1, 088
*14, 686
<*5, 400) (* 710) (*1,200)
(*7,310)
Y--611--B
8400# - 1/16" 4A DG MOLECULAR SIEVE - *1. 26/# 300# - 1/8" 4A DG MOLECULAR SIEVE - *2. 19/#
1600# - 1/8" F- 200 ACTIVATED ALUMINA - *. 68/#
SUB TOTAL
*10,584 * 657 * 1.088
*12,329
(*6,300) (* 657) <*1,200)
(*8,157)
RAR 4/14/93
TOTAL
*56, 387
(*30.057)
a nio
MEDIA REGENERATED 1992
- ' ''
AMOUNT REGENERATED
COST NEW
COST REGENERATED
COST DISPOSE
" 13.-92 -'21.-92
~* 4/-"
25,800#
28,600#
34, oyo4"
T>a* AQt'ilf
32, 503
36, 036
&7.Z$o
495 -6T4
19, 350 21, 4 50 1 7 i r?ii
7, 28S 8, OS5
- > > WO
fo,4oo
1 1U; i <JLj /^f W
0j r v'y
Cptffoo
ICS'" OF NEW 4A DG $1.26 PER LB. COST OF NEW 13X PG *1. 79 PER LB. CO3T TO REGENERATE AND SCREEN $ 75 PER LB. :o?T TO DISPOSE * 20 PER LB
COST OF 45 GAL. FIBER PACK % 23 65 EACH
bU^> i "I "9
COST SAVINGS
20,446
^-2,6-71
SO, A/i-A 'ls,v
1 C_
--
f aJ c vJ
'De/^VS'*'*
/ c;<r
-
</ 70 * /
5
/UfeDiA 2sk3JOeATETi>.
D0 A 018050 CONFIDENTIAL
RF 'NERATED MEDIA 1994:
BED NO.
1/2" SUP.BALL
1/4" SUP. BALL
i1 Y-211A l 6 CO. FT. I 6 CU. FT.
Y-221A Y-221B
6 CU, FT, i 6 CU. FT. 1
6 CU. FT. I 6 CU. FT.
Y-631A B! 12JCU, FT,. , M2 CU. FT, 1 t -J - 7 ,, '% J
Y-801B 5 .2 Cyi'FIr 1.2 CU. FT.. . . II
Y--802 Y-802B
J Jr# - . j
J*
i 3 CU. FT. S 3 CU. FT. i
TOTAL#
2035# t 2220#
1/8"
1/16" MEDIA
1/4" ACT. ALU.
TOTAL#
275#
275# v, J } 275# !
7100# 7100#
S t
7100#
350*m* .W-'1
275# ! fi
275# 1 1
V275# 1 ;i
15500# 1600# 1700# 3000#
; i
2200#
43100#
1600#
9665#
1600#
9665#
1600#
9665#
3200# i 20630#
200#
2305#
--1-
200# J - 2405#
200#
3820#
8600#
58155#
COST NEW 5 *2.331 J *2, 479 J *3,740 J *73,270 ! *5,418
*87, 238
: COST REQ l
, : .. 5
5 ;i
i
325 ^ *6, 450 ^ ^ *43, 616
; - . ` * !' , :
. ' `7 V+, .i'V. ...- `
REGENERATED MEDIA USED
DISPOS SAVINGS
If**'-.
" 'T
AJZ
`
-- >*
i-'. &*:? -< `t*-1 ^ * ri
,
'"','54 ^ ;*
>rv
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"Vv.
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A? .*../a fc '** '. * T >
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rx: &* -1' - - * /' i , *'- - . .~
Tyn.?,"
y*1*,' ,'t' J7`-
rSl* '<" '<* *',, ,, ^\j-*s7vTT7ht /s'o.'*-' ' 'I'A.
r-4A-.v. Ar S' '. ' *;- Y .'-^y .. A:i.: '.
Do A 018051
CONFIDENT^!