paraffin wax deposition and fouling

More documents

Recommendations

Info

KINEMATIC VISCOSITY AT WALL 0.074072 ((FT)*2/S) 0.C0000191 ((M)**2/S) OVERALL HEAT TRANSFER COEFFICIENT 23.806244 (BTIJ/HR (FT)**2 F) 0,.l35172(KW/(M)*2 C) OVERALL HEATTRANSFER RESISTANCE 0.O42O0 (BTU/HR (FT)2 F)(—1) 7397987(K/(M) 2 C)(—I) PHYSICAL PROPERTIES EVALUATED AT WALL TEMPERATURE TW hEAT CAPACITY 0.455640 (BTU/LB F) 1.906853 (KJ/KG C) THERMAL CONDUCTIVETY 0.085460 (BTU/HR FT F) 0.000148 (KW/M C) DENSITY 48. 103699 (LB/(FT)**3) 772.129883(KG/(M)4*3) VISCOSITY AT WALL 3.563143 (LB/HR FT) 0.001472 (KG/S M) CALCULATED CHARACTERISTICS BULK VELOCITY 2.014460 (FT/SEC) 0.614007(M/SEC) HEAT FLUX 1343.37695 (BTU/HR (FT)**2) 4.Z37011(KW/U)**2) SHEAR STRESS AT WALL 1.407072 N/(M)**2 SHEARING STRESS VELOCITY 0.C42689 H/S
YP UP TP Y U T VIS rc CP PR 1.00 1.00 18.66 44.7 0.04 33.26 0.001441 0.000148 1.9154 18.68 2.00 2400 36.56 89.3 0.09 34.46 0.301412 0.000148 1.9236 18.39 3.00 3.00 51.99 134.0 0.13 35.50 0.001387 0.000148 1.9306 18.15 4.00 4.00 63.09 178.7 0.17 36.25 0.001370 0.000148 1.9357 17.98 5.00 5.00 70.05 223.3 0.21 36.72 0.001360 0.000147 1.9389 17.88 6.00 5.89 74.78 268.0 0.25 37.04 p.001353 0.000147 1.9410 17.80 7.00 6.68 77.77 312.7 0.29 37.24 0.001348 0.000147 1.9424 17.76 3.00 7.38 79.80 357.4 0.32 37.38 0.001345 0.000147 1.9433 17.73 9.00 8.00 81.26 402.0 0.34 37.48 0.001343 0.000147 1.9440 17.71 10.00 8.54 82.37 446.7 0.36 37.55 0.001341 0.000147 1.9445 17.69 11.00 9.02 83.25 491.4 0.39 37.61 0.001340 0.000147 1.9449 17.68 12.00 9.45 83.98 536.0 0.40 37.66 0.001339 0.000147 1.9452 17.67 13.00 9.84 84.60 530.7 0.42 37.70 0.001338 0.000147 1.9455 17.66 14.00 10.20 85.13 625.4 0.44 37.74 0.001337 0.000147 1.9458 17.65 15.00 10.52 85.59 670.0 0.45 37.77 0.001336 0.000141 1.9460 17.64 16.00 10.82 86.01 714.7 0.46 37.80 0.001336 0.000147 1.9462 17.64 17.00 11.10 86.33 759.4 0.47 37.82 0.001335 0.000147 1.9463 17.63 18.00 11.36 86.73 804.1 0.48 37.85 0.001335 0.000147 1.9465 17.63 19.00 11.60 87.04 848.7 0.50 37.87 0.001334 0000147 1.9466 17.62. 20.00 11.83 87.33 893.4 0.51. 37.89 0.001334 0.000147 1.9468 17.62 21.00 12.05 87.60 938.1 0.51 37.90 0.001333 0.000147 1.9469 17.61 22.00 12.25 87.85 982.7 0.52 37.92. 0.001333 0.000147 1.9470 17.61 23.00 12.44 88.08 1027.4 0.53 37.94 0.001333 0.000147 1.9471 17.61 24.00 12.63 88.30 1072.1 0.54 37495 0.001332 0.000147 1.9472 17.60 25.00 12.80 88.51 1116.7 0.55 37.97 0.001332 0.000147 1.9473 17.60 26.00 12.97 88.71 1161.4 0.55 37.98 0.001332 0.000147 1.9474 17.60 27.00 13.08 68.81 1206.1 0.56 37.99 0.001332 0.000147 1.9474 17.60 28.00 13.18 88.91 1250.8 0.56 37.99 0.001331 0.000147 1.9475 17.59 €9.00 13.27 89.01 1295.4 0.57 38.00 0.001331 0.000147 1.9475 17.59 30.00 13.37 89.11 1340.1 0.57 38.01 3.001331 0.000147 1.9476 17.59 31.00 13.46 89.20 1384.8 0.57 38.01 0.001331 0.000147 1.9476 17.59 32.00 13.55 89.29 1429.4 0.58 38.02 0.001331 0.000147 1.9417 17.59 33.00 13.63 89.37 1474.1 0.58 38.02 0.001331 0.000147 1.9477 17.59 34.00 13.72 89.45 1518.8 0.50 38.03 0.001331 0.000147 1.9477 17.59 35,00 13,80 89.53 1563.4 0.59 38.04 0.001331 0.000147 1.9478 17.58 36.00 13.87 89.61 1608.1 0.59 38,04 0.001330 3.000147 1.9478 17.58 37.00 13.95 89.69 1652.8 0,60 38.05 0.001330 0.000147 1.9478 17.58
Page 1 and 2:
1 ci 0 Ilc (i) s_ri P4 4) •,-1 0
Page 3 and 4:
ACKC’bJLED3E.:ENTS should like to
Page 5 and 6:
46 iixperimental Results 461 IntroJ
Page 7 and 8:
APPNNDICES 1. PHYSICal PRSPHTIES Oi
Page 9 and 10:
the major unresolved problem in hea
Page 11 and 12:
and time, fouling factors are usual
Page 13 and 14:
o F-I 0 U J ,ij cn J ‘I—I F3 Fl
Page 15 and 16:
—5— vary from less than 1 per c
Page 17 and 18:
2.2.3 Solubility refined paraffin w
Page 19 and 20:
-.9— whica is well novc condition
Page 21 and 22:
— -ii — deposit. Tronov statej
Page 23 and 24:
— 13 remain in solution and the p
Page 25 and 26:
- iuctoov and dorov concluded hat t
Page 27 and 28:
— 17 — a deporsiion ce:Ll in a
Page 29 and 30:
— 19 - toat sur:ace. hjsima.a ot
Page 31 and 32:
— 2 - S * .. -, ‘.: ,- - .-,-
Page 33 and 34:
and surface proueriez reapectlvely_
Page 35 and 36:
- 25 - loading to a random process
Page 37 and 38:
y - F’J CD:’ C) x— Dcpoit thi
Page 39 and 40:
0 C 15O— 200 From ref 2 of wax eo
Page 41 and 42:
0 o3 Tb 3D 0•0 L D 2 •O— Fg.2
Page 43 and 44:
2 I In 0 Tot -D -D U 16H 16 20, In
Page 45 and 46:
C CE) CL) CE) () .: rJ\: - . c: CD
Page 47 and 48:
400 function of roughness factor. m
Page 49 and 50:
— 2o — 3. i3:\CGRDU ND TO TI PR
Page 51 and 52:
3.5 Conclusions decreases At the in
Page 53 and 54:
L - A sz: CF Fo:;:NG BY SOLUTIONS O
Page 55 and 56:
was designed to cut off the steam s
Page 57 and 58:
• saLLy measures were tacen. oa:D
Page 59 and 60:
— 34 .4 ‘mrii:ntal Solution The
Page 61 and 62:
sections were ke-:t the same. fosi:
Page 63 and 64:
sectaon 4- at eajt tests sections h
Page 65 and 66:
These fluctuations were not reduced
Page 67 and 68:
ii ID XXX 9 C-) 0 (N x S x xx< 7r-
Page 69 and 70:
12— -; 11L. s 10E - 9: ‘3) 0 Ru
Page 71 and 72:
(1) U) C’) C) Cl) It) 0 0 0 0 ox
Page 73 and 74:
f-iq. 1.0-3.5.— Hecit trcinsfcr r
Page 75 and 76:
I--i Fig. f.6.3.7. I ;ut transfer r
Page 77 and 78:
0 C’) R — [feat transfer resist
Page 79 and 80:
characteristc does exist and is tyt
Page 81 and 82:
The ziuewor in the circulation syst
Page 83 and 84:
The calibrations o the tesperature
Page 85 and 86:
the solution and water o::a;es thro
Page 87 and 88:
‘-- 5,5 wocrinentsl Resuts with f
Page 89 and 90:
two hours, the deposits were observ
Page 91 and 92:
wcr: on ara:zic: c.eposc.tion consi
Page 93 and 94:
-- II 1 L1 SOLUIIOIJ C;IFCU1_/:[ION
Page 95 and 96:
SCAR FE 1 DEPOSITION PLATE - - 0 C)
Page 97 and 98:
M—AMOUNI DEPOSITED (mg) T1 0_i c)
Page 99 and 100:
C) 0 0 0 Li.] CD - 3 0 3 0 h Iii (E
Page 101 and 102:
- II -fl M—AMOUNT DEPOSITED (rng)
Page 103 and 104:
91 9) :< C) --z 9] mc-) .;J -i ru
Page 105 and 106:
.1 1• ci E 0 Ci) c) — nj
Page 107 and 108:
- . O, O, I— —,-, fouling studi
Page 109 and 110:
profiles at different Reynolds numb
Page 111 and 112:
L Run . (°c) used to calculate tem
Page 113 and 114:
Due to a concentration gradient the
Page 115 and 116:
1 I C. (1.2.2.2 \1L. I .OC[FY V [A[
Page 117 and 118:
V 40 - 0 C—, lt! -— o. ---—-
Page 119 and 120:
Li FIG. G.2.3./. TEMPERAI URE v RAD
Page 121 and 122:
— 1 7.0 0 --Tc.=10.0°C 50 140
Page 123 and 124:
— -- — -——— — -—Tb =
Page 125 and 126:
Z_o_—o-- 50 l0 - yX—--X— —-
Page 127 and 128:
I:302 00 50 Ito -0——— ---—-
Page 129 and 130:
I 50 ;) 30c’/ / C —------------
Page 131 and 132:
FIG. 6. 4.1. AN IDEEAL TEMPERATURE
Page 133 and 134:
— 63 — 7. DISCUSSIOI 7.1 Introd
Page 135 and 136:
— 65 — through it decreases gra
Page 137 and 138:
For breakdown and removal to occur
Page 139 and 140:
— 69 — the large fouling studie
Page 141 and 142:
Increased flowrate and temperature
Page 143:
— 72 — 8. ICOi’NDATTCNS It is
Page 146 and 147:
EEfiDN2WON
Page 148 and 149:
T TemDerature T = Average temperatu
Page 150 and 151:
= :ieat eddy dfusivity = Xoent eddy
Page 152 and 153:
in Exchar.ge: Tubes”, Chem. Engr.
Page 154 and 155:
Oil Gas J., 58 (38), 87—91 (Sept.
Page 156 and 157:
U U F--I C) (f
Page 158 and 159:
The o1ubi1ity of 5i/54°Cparafin wa
Page 160 and 161:
— — .‘.ti+ c:Lic gravity The
Page 162 and 163:
In section Al .4 the auount of pcra
Page 164 and 165:
0 •) X S (N U ‘0 -° CD c-) ( -
Page 166 and 167:
I-] H — C C) p 0’ H 0’ H CD C
Page 168 and 169:
fully refined paraffin wax in keros
Page 170 and 171:
— A12 — The cloud point decrens
Page 172 and 173:
— A3 — Tnble A2.1 Ca1culccd c i
Page 174 and 175:
calibration constants are given in
Page 176 and 177:
— Al? — Table A3.3.1 Calibratio
Page 178 and 179:
— A19 — APPENDIX 4 THE PRDGR’
Page 180 and 181:
C NC = C C REiCS EACH SET OF RE[iJC
Page 182 and 183:
13.42 7.40 7.SC 33.90 33.10 13.8 0.
Page 184 and 185:
TIME TI TO TKI TKC DPK EPW DPT V CF
Page 186 and 187:
81.15 7.45 7.7C 33.40 32.70 30.0 0.
Page 188 and 189:
RUN A1C—4 TIME 1WI TWO TKI TKC DP
Page 190 and 191:
RUN 82—6 TIME TiI TC TKI TKC OPK
Page 192 and 193:
TIME TWI TWO TKI TKC OPK CPW OPT V
Page 194 and 195:
RUN B7—1C TIME TWI TWC TKI TKO DP
Page 196 and 197:
RUN B9—12 T V’E ThI TWC TKI TKC
Page 198 and 199:
RUN C1—1t T1’E IWI TWO TKI TKC
Page 200 and 201:
PUN C2—15 TIME T’iI T0 TK1 TKC
Page 202 and 203:
}U•” C-16 TIME TWI TWO TKI TKC
Page 204 and 205:
TIME flit TC TKI TKO DPK DPW OPT V
Page 206 and 207:
UN C5-18 TIME TWI TfD TKI TKO DPK C
Page 208 and 209: 14.25 7.IC 10.2C 39.10 38.00 8.8 0.
Page 210 and 211: RUNJ C8-2C T[’E TWE T0 TKI (Hg) (
Page 212 and 213: TIVE M)*2 C) TWI TWO TKI TKC DPK op
Page 214 and 215: Tt’iE TWI TC TKI TKO OPK CPW DPT
Page 216 and 217: — A23 — APPENDIX 5 OALT2RATTUNS
Page 218 and 219: T—- TEI\iFERATUFE (°C) —I’ U
Page 220 and 221: d Average C Table A5.2 0.0452 0.025
Page 222 and 223: 11.1 6.517 10.5 6.418 10.1 6.346 9.
Page 224 and 225: — A27 — Tib1e A6.2 Pun Dl .irn
Page 226 and 227: -A29- Table A6.4 Pun 1)3 ‘ Time (
Page 228 and 229: Time — A51 — Table A6.5 Run D5
Page 230 and 231: — A33 — APPENDIX 7 EOUNDARY LAY
Page 232 and 233: — ;55 — 1.7.3 Dimensionless Exp
Page 234 and 235: — = u — u = in — + ± + + or
Page 236 and 237: I A8.21 Data 2 Subroutines usng ite
Page 238 and 239: — ALf1 — Equations L.7.4.3 and
Page 240 and 241: — A1i•3 — Lt Prorran Use The
Page 242 and 243: DIM /\3.2./>. THE iJNI/E?j\I. \ELC)
Page 244 and 245: C DF1ENSIOH VIS(2.) REAL NUWSI INTE
Page 246 and 247: C C SUt3ROUTINE DATA INTEGER SR C C
Page 248 and 249: LI) I Li . 0 0 X .. (1•) U.. UI
Page 250 and 251: C C WRt 1E(6,’O) 60 FQR’AT(1HLf
Page 252 and 253: te 4Z’Xt’9’911’XZ’ 3DNVIS
Page 254 and 255: C C C C C )fl:O .0 DO ‘O 1=3,9,2
Page 256 and 257: C, .4:’. 0 0 —; —s iZ fl r;
Page 260 and 261: YP UP TP Y U T VIS TC CR PR 39.00 1
show all

paraffin wax deposition and fouling

Create successful ePaper yourself

Delete template?

Save as template?