· XLS file · Web view · 2016-04-11TEG, CP TEG Heat Capacity TEG Reboiler TEG Dehy TEG Vapor...

05/07/2023RAJ

-100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 1100.01

0.1

1

10

100

Methanol Losses in Vapor PhasePressure = 600 psia

Temperature, °F

Gal

/MM

SCF

Methanol

T °R T,°F Vapor Pressure °K x pvp,barspsi

559.7 100 4.639696 310.9444 0.393397 0.319891534.7 75 2.324146 297.0556 0.420492 0.160242509.7 50 1.079974 283.1667 0.447587 0.07446484.7 25 0.460064 269.2778 0.474682 0.03172459.7 0 0.177131 255.3889 0.501777 0.012213434.7 -25 0.060577 241.5 0.528872 0.004177409.7 -50 0.018011 227.6111 0.555967 0.001242384.7 -75 0.004533 213.7222 0.583062 0.000313359.7 -100 0.000933 199.8333 0.610157 6.435E-05

-110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 1100.0001

0.001

0.01

0.1

1

10

Vapor Pressure of Methanol

Temperature, °F

Vap

or P

ress

ure,

psi

Methanol

gal/MMSCF

98.7944449.4887422.996219.7962723.7717111.289879

0.383520.0965210.019874

-110-100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 1100.0001

0.001

0.01

0.1

1

10

Vapor Pressure of Methanol

Temperature, °F

Vap

or P

ress

ure,

psi

document.xls05/07/2023

RAJ

60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 2400.5

0.55

0.6

0.65

0.7

0.75

0.8

0.85

0.9

0.95

1

MEG Heat Capacity

40 wt %60 wt%80 wt%100 wt %

°F

Cp,

BT

U/L

b-°F

MEG

Heat Capacity of Glycol °F 100 wt% 80 75 70 65 62.5 60

60 0.563 0.66 0.7085 0.744875 0.75780 0.576 0.673 0.721 0.757 0.769

100 0.59 0.685 0.7325 0.768125 0.78120 0.604 0.697 0.7445 0.780125 0.792140 0.618 0.71 0.7565 0.791375 0.803160 0.632 0.722 0.768 0.8025 0.814180 0.646 0.735 0.78 0.81375 0.825200 0.66 0.748 0.7925 0.825875 0.837220 0.674 0.761 0.805 0.838 0.849240 0.688 0.774 0.8175 0.850125 0.861

MEG

55 50 45 40 20 10

0.806 0.855 0.94 0.9760.8165 0.864 0.942 0.977

0.826 0.872 0.944 0.9780.836 0.88 0.946 0.979

0.8455 0.888 0.948 0.980.855 0.896 0.95 0.9810.865 0.905 0.952 0.982

0.8755 0.914 0.954 0.9820.8855 0.922 0.956 0.9830.8955 0.93 0.958 0.984

MEG

50 100 150 200 2500.69

0.70

0.71

0.72

0.73

0.74

0.75

0.76

0.77

0.78

0.79

0.80

0.81

0.82

0.83

0.84

0.85

0.86

62.5 wt% MEG ( 60 volume %)

\John M Campbel\document.xls

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10

0.2

0.4

0.6

0.8

1

Activity Coeffiecient For Water In TEG

RosmanParrishScauzilla

Mole Fraction Water

g

TEG Activity Coef

gScauzilla Rosman Parrish Parrish t,°F a

0.99999 80 1 1 1 80 0.0540150.95 0.998178 0.940761 0.998946

0.9 0.992644 0.860819 0.9827050.8 0.970185 0.746941 0.9020350.7 0.932556 0.679061 0.8348460.6 0.880459 0.635583 0.7854820.5 0.815397 0.605683 0.7444310.4 0.739639 0.58396 0.7066330.3 0.65611 0.567503 0.6697560.2 0.568201 0.554619 0.6327840.1 0.47951 0.544269 0.595358

0.09 0.470735 0.543344 0.5915870.08 0.461992 0.542438 0.5878130.07 0.453283 0.541549 0.5840330.06 0.444611 0.540677 0.5802490.05 0.43598 0.539822 0.5764610.04 0.427394 0.538982 0.5726690.03 0.418854 0.538158 0.5688730.02 0.410365 0.537349 0.5650730.01 0.40193 0.536554 0.561269

0.0001 0.393634 0.535782 0.5575010.1938 0.6304780.4191 0.7137340.6102 0.7900150.2961 0.66832

0.503 0.7455980.6386 0.803136

TEG Activity Coef

b c0.269801 0.314559

0 50 100 150 200 250 300 350 400 4500.1

1

10

100

1000

Viscosity of Dehydrating Liquids

TEGMEGMethanol

Temp, °F

Visc

osity

, cp

TEG Viscosity

a b c d Temp,°K Temp,°FTEG -13.8883 3.06E+03 2.05E-02 -1.05E-05 -17.74 255.3889 0MEG -7.811 3.14E+03 0 0 -12.19 260.9444 10MeOH ### 4.83E+03 1.09E-01 -1.13E-04 -6.63 266.5 20

-1.07 272.0556 304.48 277.6111 40

10.04 283.1667 5015.59 288.7222 6021.15 294.2778 7026.70 299.8333 8032.26 305.3889 9037.81 310.9444 10043.37 316.5 11048.93 322.0556 12054.48 327.6111 13060.04 333.1667 14065.59 338.7222 15071.15 344.2778 16076.70 349.8333 17082.26 355.3889 18087.81 360.9444 19093.37 366.5 20098.93 372.0556 210

104.48 377.6111 220110.04 383.1667 230115.59 388.7222 240121.15 394.2778 250126.70 399.8333 260132.26 405.3889 270137.81 410.9444 280143.37 416.5 290148.93 422.0556 300154.48 427.6111 310160.04 433.1667 320165.59 438.7222 330171.15 444.2778 340176.70 449.8333 350182.26 455.3889 360187.81 460.9444 370193.37 466.5 380198.93 472.0556 390204.48 477.6111 400

TEG Viscosity

TEG MEG MeohVisc,cp466.0316 89.63284 1.057919313.9885 68.9726 0.938666216.4782 53.65749 0.84107152.4979 42.1733 0.760272109.6133 33.46811 0.69264680.28945 26.80183 0.6354559.86038 21.64762 0.58658245.37683 17.62618 0.54441734.9386 14.4615 0.50768

27.29909 11.95077 0.47536621.6265 9.943459 0.446671

17.35679 8.326887 0.42094914.10173 7.015948 0.39767711.59021 5.945839 0.376439.630374 5.066838 0.3568588.084679 4.340501 0.3386766.853347 3.736899 0.3216475.86315 3.232572 0.30558

5.059763 2.809013 0.2903164.402467 2.451527 0.2757253.860444 2.148385 0.2617053.410149 1.890163 0.2481733.033436 1.669256 0.235064

2.7162 1.479489 0.2223312.447392 1.315827 0.2099382.218289 1.174142 0.1978622.021953 1.051035 0.186091.85283 0.943696 0.174617

1.706443 0.849792 0.1634441.579158 0.767374 0.1525781.468013 0.694813 0.1420321.370573 0.630739 0.1318191.284831 0.573996 0.1219561.20912 0.523607 0.11246

1.142049 0.47874 0.1033481.082453 0.438688 0.0946371.029352 0.402844 0.0863410.981914 0.370689 0.0784730.939435 0.341778 0.0710440.901312 0.315724 0.0640590.867029 0.292195 0.057524

TEG Viscosity

-25.00 25.00 75.00 125.00 175.00 225.000.1

1

10

100

1000

Viscosity of Dehydrating Liquids

TEGMEGMethanol

Temp, °C

Visc

osity

, cp

Vapor Pressureof Glycols and Methanol

-100 -50 0 50 100 150 200 250 300 350 4000.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

Temperature, °F

Vapo

r Pre

ssur

e, M

MHG

TEG

DEG

EGMetha

nolWater

TEG Vapor Pressure

a b c P P °Ctorr,°K 17097.1 9.652867 0 22.12806mmhg,°K 8.702614 2852.623 210.398 2.960099Psia,°F 12.0229 -6987 202.7 17.49691Psia,°F 13.1222 -8395.32 258.7 17.59734

Psia,°F 12.0229 -6987 202.7 8.454E-06 500.000814 1000.021462 1500.251118 2001.706576 2507.921697 30027.85391 35079.49697 400193.2117 450

413.838 500801.0861 550904.7651 560

1.242E-06 703.075E-06 807.153E-06 901.574E-05 1003.293E-05 1106.581E-05 120

below data all from the Chemistry and Physics Handbook

1000/t,°R Vapor Pres t, °F2.175332 1.06E-05 0 -17.778

teg 1.961938 0.000289 50 10.000torr,°K 17097.1 9.652867 0 1.786671 0.004353 100 37.778

1.72503 0.011305 120 48.8891.640151 0.042074 150 65.5561.515841 0.288348 200 93.3331.409046 1.506723 250 121.1111.316309 6.333209 300 148.8891.235025 22.29458 350 176.6671.163196 67.79495 400 204.444

degtorr,°K 16146.7 9.668173 0 2.175332 7.141E-05 0 -17.778

1.961938 0.001618 50 10.0001.786671 0.020986 100 37.778

1.72503 0.051686 120 48.8891.640151 0.178813 150 65.5561.515841 1.101113 200 93.3331.409046 5.248437 250 121.111

TEG Vapor Pressure

1.316309 20.36836 300 148.8891.235025 66.85722 350 176.6671.163196 191.1161 400 204.444

EG 2.44081 8.394E-05 -50 -45.556torr,°K 14032.4 9.394685 0 2.175332 0.00245 0 -17.778

1.961938 0.036886 50 10.0001.786671 0.342095 100 37.778

1.72503 0.748759 120 48.8891.640151 2.20184 150 65.5561.515841 10.6868 200 93.3331.409046 41.51835 250 121.1111.316309 134.9119 300 148.8891.235025 379.0101 350 176.6671.163196 944.2133 400 204.444

Methanol2.780095 0.0503 -100 -73.333

torr,°K 9377.2 8.9547 0 2.44081 0.897145 -50 -45.5562.175332 8.549915 0 -17.7781.961938 52.35615 50 10.0001.786671 231.9324 100 37.778

1.72503 391.4693 120 48.8891.640151 804.8908 150 65.556

water

2.151926 1.436 5 -15.0002.03376 4.579 32 0.000

0.17811 1.961938 9.210068 50 10.0000.9492 1.786671 49.08313 100 37.778

3.718 1.640151 192.2578 150 65.55611.526 1.515841 596.0095 200 93.33329.825 760 10067.013

TEG Vapor Pressure

t water560560560 32.018 0.08865560 35 0.09991

40 0.1216350 0.1779660 0.25611

1.961938 70 0.362921.786671 80 0.506831.640151 90 0.698131.515841 100 0.942941.409046 110 1.2751.316309 120 1.69271.235025 130 2.2231.163196 140 2.88921.099263 150 3.71841.041992 160 4.74140.990393 170 5.99260.980681 180 7.511

190 9.34200 11.526210 14.123

-75 -50 -25 0 25 50 75 100 125 150 175 2000.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

Temperature, °C

Vapo

r Pre

ssur

e, M

MHG

TEGDEG

EGMethanol

Water

TEG Vapor Pressure

1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 30.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

Temperature, 1000/°R

Vapo

r Pre

ssur

e, M

MHG

TEGDEGEG

MethanolWater

-75 -50 -25 0 25 50 75 100 125 150 175 2000.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

Temperature, °C

Vapo

r Pre

ssur

e, M

MHG

TEGDEG

EGMethanol

Water

TEG Vapor Pressure

0 100 200 300 400 500 6000.000001

0.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 30.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

Temperature, 1000/°R

Vapo

r Pre

ssur

e, M

MHG

TEGDEGEG

MethanolWater

TEG Vapor Pressure

0 100 200 300 400 500 6000.000001

0.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

TEG Dehy

Calculates TEG Trayed column performanceInput

Gas Rate, MMSCFD 326.00 MMSCFD 240.00 MMSCFD 550.00 MMSCFDP, psia 1300 PSIA 600 PSIA 650 PSIAT, °F 115 Deg F 90 Deg F 90 Deg FZ, compressibility 0.87 0.89 0.89Mw 19.47 22.5 22.89Lbw/MMSCFD,in 76 60 45Lbw/MMSCFD,out 1.32 0.1 0.1Reboiler btu/gal 1400 1400 1400Number of Theoretical Trays 3 4 4Contactor K value 0.195 0.16 0.23Contactor Fs 2.6 2.6 2.9

25 gpm 60 gpm 30 gpmLean TEG Wt% 99.500 Wt% 99.970 Wt% 99.975 Wt%Gas Heat capacity, btu/lb-°F 0.55 0.55 0.55

OutputContactor Tray Dia, Ft 8.49 9.98 12.42Contactor Packing Dia, Ft 6.60 7.09 10.00Rich TEG, Wt % 92.782 98.220 94.209activity coef 6.181E-01 5.726E-01 5.718E-01K value 1.076E-03 7.719E-04 5.684E-04A, L/KV 3.36 12.38 4.05Lbw/MMSCF in eql with lean TEG 2.0543 0.0914 0.0561Lbw/MMSCF in Product gas 3.43 0.0938 0.1824Gas Temp out, °F 117.99 92.08 91.53gal lean teg/lbw absorbed 1.48 6.01 1.75Reboiler Duty, MMBTU/Hr 2.100 MMBTU/Hr 5.040 MMBTU/Hr 2.520 MMBTU/HrStill Col Dia, ft 1.67 2.58 1.83

Stripping Col Dia, ft 1.25 1.94 1.37

TEG Circ RateLean TEG, gpm

B9

The inlet water content is also used to calculate the equilibrium K value, so an accurate number is important

B11

1400 btu/gal is typical

B12

for structured packing assume 2.5 feet/tray

B13

K of 0.23 is recommended max

B14

a value of 2.6 is recommended

TEG Dehy

Gas density, Lb/Ft³ 4.72 2.57 2.83Lean TEG

TEG lb/hr 13939.95 33613.91 16807.80moles/hr 96.34 224.59 112.26

Water lb/hr 70.05 10.09 4.20moles/hr 3.89 0.56 0.23Rich TEG

TEG lb/hr 13939.95 33613.91 16807.80moles/hr 96.34 224.59 112.26

Water lb/hr 1084.45 609.09 1033.16moles/hr 60.25 33.84 57.40

TEG Reboiler

H:\486106\TEGREB.XLS

TEG Regenerator Heat Balance

Design CurrentDehydrated Gas, MMSCFD 240.00 500.00 500.00 700.00 800.00 500.00 700.00 800.00Water Content, lb/mmscfd 231.00 58.00 58.00 58.00 58.00 58.00 58.00 58.00Rich TEG In °F 287.00 287.00 280.00 280.00 280.00 280.00 280.00 280.00

lb/hr (Water) 2310.00 1208.33 1208.33 1691.67 1933.33 1208.33 1691.67 1933.33

Stripping Gas in scf/gal 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00scfm 135.00 90.00 90.00 90.00 90.00 120.00 120.00 120.00lb/hr 480.24 320.16 320.16 320.16 320.16 426.88 426.88 426.88Temp 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00

Lean TEG out, gpm 45.00 30.00 30.00 30.00 30.00 40.00 40.00 40.00lb/hr 25218 16812 16812 16812 16812 22416 22416 22416

Effluent Gas out 174.00 174.00 200.00 174.00 174.00 200.00 174.00 174.00water out 174.00 174.00 174.00 174.00 174.00 174.00 174.00 174.00lb/hr Gas

Reflux in 140.00 85.00 85.00 85.00 85.00 85.00 85.00 85.00out 150.00 130.00 130.00 130.00 130.00 130.00 130.00 130.00

Water heat, 2.05 1.07 1.08 1.51 1.73 1.08 1.51 1.73Glycol heat 1.88 1.25 1.33 1.33 1.33 1.78 1.78 1.78Gas heat 0.0298 0.0198 0.0240 0.0198 0.0198 0.0320 0.0265 0.0265reflux 0.14 0.42 0.42 0.42 0.42 0.55 0.55 0.55desup, ovhdTotal 4.10 2.76 2.85 3.28 3.50 3.44 3.87 4.09

mw Gas 22.50Cp TEG 0.66Cp TEG 0.55cp gas 0.50cp water 1.00latent heat water 1000.00cp hot teg 0.66

TEG Reboiler

H:\486106\TEGREB.XLS

50.00 15.00 15.00 15.00 Dehydrated Gas, MMSCFD35.00 95.00 95.00 95.00 Water Content, lb/mmscfd280.00 280.00 280.00 270.00 Rich TEG In °F72.92 59.38 59.38 59.38 lb/hr (Water)

3.00 3.00 3.00 3.00 Stripping Gas in scf/gal 9.00 9.00 8.91 8.91 scfm

32.02 32.02 31.68 31.68 lb/hr50.00 50.00 50.00 50.00 Temp3.00 3.00 2.97 2.97 Lean TEG out, gpm1681 1681 1664 1664 lb/hr

174.00 174.00 194.60 194.60 Effluent Gas out174.00 174.00 194.60 194.60 water out

31.68 31.6885.00 85.00 85.00 85.00 Reflux in130.00 130.00 110.00 110.00 out

0.07 0.05 0.0543 0.0549 Water heat, 0.13 0.13 0.1318 0.1263 Glycol heat

0.0020 0.0020 0.0023 0.0023 Gas heat0.04 0.04 0.0229 0.0229 reflux

0.24 0.23 0.2112 0.2063 Total

0 50 100 150 200 250 300 350 4000.4

0.45

0.5

0.55

0.6

0.65

0.7

TEG,Heat Capacity

Temp, °F

CP,

BTU

/lb-°

F

TEG, CP

0 0.49766110 0.502120 0.50653930 0.51097840 0.51541750 0.51985660 0.52429570 0.52873480 0.53317390 0.537612

100 0.542051110 0.54649120 0.550929130 0.555368140 0.559807150 0.564246160 0.568685170 0.573124180 0.577563190 0.582002200 0.586441210 0.59088220 0.595319230 0.599758240 0.604197250 0.608636260 0.613075270 0.617514280 0.621953290 0.626392300 0.630831310 0.63527320 0.639709330 0.644148340 0.648587350 0.653026360 0.657465370 0.661904380 0.666343390 0.670782400 0.675221410 0.67966420 0.684099430 0.688538

· XLS file · Web view · 2016-04-11TEG, CP TEG Heat Capacity TEG Reboiler TEG Dehy TEG Vapor...

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