Document x5yYyka6vr1QdGyp8gj31wzvG

WRITTEN BY: FSN DATE: 10/16/89 APPROVED BYi&JJg f ^ DATE: (/ / V^ CONTROL "X" CALLS REACTOR PLUGGING PROGRAM NOTE-: DATA PRINTED FOR THE OHC REACTOR #1 DATE: TIME TE 96 76 = TEMPERATURE OF THE 02 HEATER OUTLET PT 9490 = OHC REACTOR PRESSURE FT 9056 = HCL FLOW RATE FT 9066 = ETHYLENE FLOW RATE FT 9076 = 02 FLOW RATE FT 9087 = RECYCLE GAS FLOW RATE ENTER OHC REACTOR NO.1 02 HEADER PRESSURE XX. X OHC REACTOR NO.l 02 FEED HEADER % OPEN = XXX.X % ENTER OHC REACTOR NO.l MIX FEED HEADER PRESSURE XX. X ENTER OHC REACTOR NO.l MIX FEED TEMPERATURE XX. X OHC REACTOR NO.l MIX FEED HEADER % OPEN = XXX.X X ^ 004032 NOTE: DATA PRINTED FOR THE OHC REACTOR #2 TE 9776 PT 9590 FT 9156 FT 9166 FT 9176 FT 9187 TEMPERATURE OF THE 02 HEATER OUTLET OHC REACTOR PRESSURE HCL FLOW RATE ETHYLENE FLOW RATE 02 FLOW RATE RECYCLE GAS FLOW RATE ENTER OHC REACTOR NO.2 02 HEADER PRESSURE XX. X OHC REACTOR NO.2 02 FEED HEADER % OPEN * XXX.X % ENTER OHC REACTOR NO.2 MIX FEED HEADER PRESSURE XX. X li J **; i.1 *n ` T*C-i V{,* r.iv+i ^ ^3 H g -- CjHL **-( S' fe. o . ipp o -h aos t> 3 ti " 4> St , v 3 >I 0 ENTER OHC REACTOR NO.2 MIX FEED TEMPERATURE XX. X OHC REACTOR NO.2 MIX FEED HEADER % OPEN = XXX.X % NOTE: 1. THESE X OPEN CALCULATIONS ARE BASE ON THE SAME EQUATION AND FIGURES USED IN THE HAND CALCULATION METHOD . ANY DIFFERENCES WILL BE DUE to'Rou*nd off ERROR introduced by the computer. 1* t * 2. 'ALSO THE RESULTS FROM THESE CALCULATION MAY SHOW THE HEADER OVER 100X OPEN. THESE VALUES ARE NOT ACCURATE AS ABSOLUTE VALUES, BUT A TREND MAY BE SEEN TO INDICATE WHEN REACTORS ARE BEGINNING TO PLUG. 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' /> y -j 6 6 -t Hi* J ;_i -ST' / 9 e/->\. ^ A* * /. 6>3 & -tv ^* Lj - Dl- --<Er0^-- = OPS 63%2. - kllB ('-'n')') = \ I7~i v i- r'J-r'!.///)) ' : i'ii ' p- U yo-'^i X. v\ i i> ~r~ SGo) /Ir- - CO ^ ^ y X s^x^/x , /l* 7/b --- > ,c-c//S ix1 /o r-P rS /\. /\ > f: i 1 g-77 6 >N Vl 6 t-l f29l ^ T&zsols" C V * n P* )i<'_ > '-' '4 .Zr___ - <9 / > / t > c ---^---- -- D"'(i (pi -v ! ''.< I') t /' tV f (<_ P/t'j'j ,1,vj (k 1-1 lr l>-'} r-J'-t k i. v. -1 ,.,.-/ -.51:1- \< .. ^3 PlO___ H C3 ^ \\ * f i C K 'V'''0`7v% p ^ -q 3. - -r !'}'/ /' `t >' C M % ' -' ' U )> C>MX p V- - ~ ' r Pr Cf rr-C ^--9 P'1' P-> V<r^ ,^ -T- 9 !' O. Up 7. so-6 Sf- 0 0 4 0 3 6 O' J-'r. "-J .A >- - ( ui' -- Da.'1-) ' I M '( C TP-? r'* -j x <tn- *1 . fc* *4 3 V0 .C 74 to ,<V. 7 _or V't. CO. Z A. I /) x. k .:. 2.') = P2-Y35 / S6613i-i 1.0t< / i(V, ' ^^ **jwJii m^ ir * *** *i Ac-4 o ->W?*>'c. a**; tf ''~*r^-i4gJ * 0r>-_ -3-^> 3= I - - I- -'^6 P= O PS X 32. (CAy ?;, ^ v' (V,* y /; i' ,. r ^ 6c) CO Ai 7 7C^ K ^2x^4|xir ("'7y<(3^2xvyo) v >/? " * c X-^"-[^4 V A. > ^39y x 'ijty 6. a j; ~ *<p/ i I*) ? /t c /M, 11 - > o// XI y1 r J -> * 7 *' ^ ' ' )UPi 'Oi3i<n tiK MC V- WRITTEN BY:RLD DATE:3/1/90 TROUBLE SHOOTING POOR QUALITY CRUDES (LOW XEDC) HIGH LEVELS OF TCE, TETRA, AND PENTA. CAUSES - 1. HIGH REACTOR BED TEMPERATURE. 2. HIGH C2H4 CONVERSION. 3. COMBINATION OF HIGH BED TEMPERATURE AND HIGH C2H4 CONVERSION. 4. HIGH EDC IN RECYCLE. 5. HIGH VC IN HCL FEED. SL 004037 CORRECTIVE ACTION: 1. LOWER REACTOR BED TEMPERATURE. IF RATES CANNOT BE MAINTAINED, REACTOR MAY BE LOW ON CATALYST. .2 LOWER THE C2H4 CONVERSION. (INCREASE C2H4 COMPOSITION RECYCLE BY INCREASING C2H4 MAKE-UP) u 3. LOWERING THE REFRIGERATED CONDENSER TEMPERATURE': WILL DECREASE EDC IN RECYCLE. INCREASING C2H4 COMPOSITION IN RECYCLE WILL DECREASE THE AMOUNT OF EDC IN RECYCLE- HIGH LEVELS OF TCE, TETRA, PENTA, AS WELL AS HIGH DICHLOROETHYLENES AND OR VINYL CHLORIDES. I *- * \i * CAUSE: 1. DEFINITE INDICATION OF HIGH REACTOR BED TEMPERATURE. * "CORRECTION?'^ , :. i ^. i j . 1. LOWER REACTOR BED TEMPERATURE. - / ' -1 HIGH LEVELS OF CCL4 (CARBON TET) AND CHLORAL. CAUSE: 1. HIGH EXCESS OXYGEN Ot CORRECTION: 1. LOWER EXCESS OXYGEN, MAINTAIN A GOOD CHLORIDE YIELDS (ACID STRENGTH) . PAGE 1 OF 3 ` HIGH LEVELS OF TRICHLOROETHYLENE, CAUSE: 1. IMPURITIES IN HCL FEED, MAINLY ACETYLENE. 2. IF ACCOMPANIED BY HIGH BURNING AND POOR CRUDE: A.. MALDISTRIBUTION OF REACTOR FEED GASES B. LOCALIZED HOT SPOTS C. CLINKERS CORRECTIVE ACTION: 1. CAUSE OF IMPURITIES RILL BE CHECKED. 2. CONSIDERATION OF REACTOR SHUTDOWN WILL BE TAKEN (NOTIFY SUPERVISION). LOW CHLORIDE UTILIZATION. CAUSES: 1. INSUFFICIENT OXYGEN FEED 2. HIGH C2H4 CONVERSION 00403Q 3. LOW CATALYST LEVEL 4. HIGH REACTOR BED TEMPERATURE CORRECTIVE ACTION: 1. INCREASE OXYGEN WHILE CHECKING ACID STRENGTH 2. LOWER C2H4 CONVERSION. (INCREASE C2H4 RECYCLE COMPOSITION BY INCREASING C2H4 MAKE-UP) 3. ADD CATALYST 4. LOWER REACTOR BED TEMPERATURE COKrSOEKTIAk: LOW CARBON UTILIZATION. Subject to JProtStrfciv* Otter of 14th Judicial District Court LOSS OF C2H4 IN VENT . No. 91-11*5 CAUSESi *t * ' . . v- . 1". BURNING CAUSED BY HIGH TEMPERATURE AND/OR HIGH OXYGEN :R$'0LTS IN CO & C02 IN VENT. (REQUIRING MORE PURGING AND *% ADDITIONAL LOSS OF C2H4, AND CONSUMPTION OF C2H4) 2. HIGH UNREACTED C2H4 , NORMALLY DUE TO INERTS ENTERING THE SYSTEM. CORRECTIVE ACTION: 1. LOWER OXYGEN WHILE CHECKING CHLORIDE YIELD OR LOWER PAGE 2 OF 3 ' TEMPERATURE. 2. LOOK FOR N2 OR OTHER INERTS ENTERING THE SYSTEM AND CORRECT. 004039 iV'-v < 144ih JTvtl'K-11&A -S^K- * V ^M-3 `i * PAGE 3 OF 3 '