Seminar on The Promotion on Energy Efficiency and Conservation(PROMEEC) for Major Industries in Southeast Asia

Progress Report on Oil Refineries Earlier Audited in Myanmar.

Date: 6 October 2006

Presented byDaw Hla Hla Kyi
Deputy General Manager (Production)
Petrochemical Complex, Thanbayakan (Mann)
Myanma Petrochemical Enterprise,
Ministry of Energy, Myanmar

1. Introduction•

The refining industry in Myanmar is driven by the demand
for transportation fuels and their required specifications.

• Since petroleum is not only strategic goods for each country butalso commercial ones, .the energy sector in Myanmar plays avital role for the sustainable economic development of the state .
• In view of this, Ministry of Energy , Myanmar has made aparticular emphasis on promotion of energy efficiency andconservation program by inviting rich experiences, excellent
technology and know-how in accordance with Myanmar Energy
Policy.

1.1 Ministry of Energy
The Ministry's office
Energy Planning Department (EPD)
Myanma Oil and Gas Enterprise (MOGE)
Myanma Petrochemical Enterprise, (MPE)
Myanma Petroleum Products Enterprise (MPPE).

The Ministry’s Office•

To carry out the exploration and production ofoil and gas, refining, distribution andtransportation of petroleum products andmanufacturing of petrochemicals.

The Energy Planning Department (EPD)•Technical arm for the Ministry of Energy(MOE) takes the leading role in thecoordination, discussion and negotiation ofdevelopment programmes in the sector.

1.2 Myanmar Energy Policy.

•To maintain the status of energy independence•To save nonrenewable energy for future energy
sufficiency of our nation.
•To promote efficient utilization of energy and impress onenergy conservation and•To prevent deforestation caused by excessive use of fuelwood and charcoal.

Myanma Petrochemical EnterpriseMyanma Petrochemical Enterprise is responsible forthe production of petroleum and petrochemical
products from crude oil and natural gas in the country.
Myanma Petrochemical Enterprise is assigned for thefollowings:
a. Refining of petroleum products from crude oiland natural gas.
b. Production of petrochemicals from crude oil andnatural gas.
c. Production of urea fertilizer from natural gas.
d. Export of petroleum and petrochemical products.

1.3 Myanma Petrochemical Enterprise.

(a) No (1) Refinery, Thanlyin.
(b) No (2) Refinery, Chauk.
(c) Petrochemical Complex , Thanbayakan, (Mann)(d) No (1) Urea Fertilizer factory, Sa-le (A) & (B)(e) No (2) Urea Fertilizer factory, Kyun-Chaung(f) No (3) Urea Fertilizer factory, Kyawzwa(g) Methanol Plant, Seiktha(h) LPG Extraction Plant, Minbu(i) LPG Skid-mounted Plant, Nyaung-Don(j) Bitumen Plant, No(1) Refinery, Thanlyin

Petrochemical Complex (Thanbayagan )Year built
CapacityContractor

1982
25,000 BPSD
MHI ,JPN2.1.2 Transportation and Processing of crude oilFeedstock:10” pipeline from local oil field:
Mann, Htauk Shabin, Kanni
By barge

Ye-Nan-Chaung, Kyauk-Kwet, Nyaung-Don,
Kwai Ma and Nga-Bat-Chaung. Yetagun
condensate from Yetagun offshore oil field isalso processed as demand.

.

Storage Tanks in Petrochemical Complex, Thanbayakan (Mann)Process Units:

Sr.No

Unit

Capacity (BPSD)

1

Topping Unit

25,0002Naptha Hydro Desulphuriser

5,000

3

Reforming Unit

2,800

4

Hydrotreater

3,000

5

Delayed Coker

5,200

5

LPG Recovery

800

6Naptha Merox

1,400

7Fouling Water Stripper

15.2 ton/ hr.

Topping Unit
Petrochemical Complex, Thanbayakan (Mann)Coking Unit and Topping Unit
Petrochemical Complex, Thanbayakan (Mann)LPG Sphere Tanks
Petrochemical Complex, Thanbayakan (Mann2.1.3 Utility Details.
•Power•Water•Fuel-Associated Gas-Home Fuel Gas-Fuel Oil

3. Energy Efficiency and Conservation Activities inMann Refinery•Energy Audit From ECCJ Visited Mann Refinery inDecember 2001 and advised some recommendations forenergy conservation measures.

• The Energy Management Team organized by process
and maintenance engineers is executing the following
activities with the top management support.

a.

b.

c.

d.
e.

Operating parameters (reflux ratio, stripping steam,operation pressure, temperature, etc.) are regularly checked
and monitored.
Excess air content in the flue gas has been measured oncea week in order to improve the burning efficiency ofburners. Air registers from burners and dampers for
furnace are adjusted to minimum open position.
Rotating machines such as compressors, turbines, motors,
etc. and spare parts for electrical and instruments are
periodically checked and preventive maintenance arecarried out for stable and steady operation.
Engineering staffs in the technical service department haveconducted survey all energy usage to make energy trend.
All data related energy saving or energy conservation arecollected in order of energy consumption rate.

f.

Steam leakages, steam traps and insulation are
regularly checked and repaired by Refinery site
maintenance team.

g.

Removal of dirt from condensers and heatexchangers etc. are carried out as necessary.

3.1 Improvement on Energy Conservation Activities• As suggested by ECCJ, the action have been taking forenergy efficiency and conservation matters.
•Compared to the data audited in December 2001, theimprovement of operation in package boilers andfurnaces for Topping Unit is as follows

Description

Type offiring

O2

CO2Ex..Air18-12-01

21-11-06

18-12-01

21-11-06

18-12-01

21-11-06

9.0

6.2

5.6

6.0

67.5

36.17

8.2

7.0

6.8

6.0

57.5

43.4

Furnace A,

Combined

TopperFired

Furnace B,

Combined

TopperFired

Boiler B,

Gas

6.0

4.5

8.2

7.8

35.7

23.9

Boiler C,

Oil

5.6

4.8

10.6

8.0

33.6

26.09

3.2 Improvement Result on Thermal Efficiency of Process Heaterfor Topping Unit•
••
••••
•••
•

Basis:

Flue Gas O2, A/B
CO2, A/BEx.Air
Flue Gas Temp.
Datum Temp.
Mean heat capacity (Cpm) of CO2
Mean heat capacity (Cpm) of CO2
Mean heat capacity (Cpm) of Air
Mean heat capacity (Cpm) of Air
Mean heat capacity (Cpm) of N2
Mean heat capacity (Cpm) of N2

6.2 / 7 %6.0 / 6.0 %35.17 / 43.4 %294 / 307 ºC
25 ºC
8.716 kcal/ kgmolºC at 25ºC
10.003 kcal/kgmolºC at 300ºC
6.949 kcal/ kgmolºC at 25ºC
7.054 kcal/kgmolºC at 300ºC
6.949 kcal/ kgmolºC at 25ºC
7.054 kcal/kgmolºC at 300ºC

• Enthalpy Δ H (300-25) of CO2 = Δ H (300-0) - Δ H (25-0)•= 10.003 (300-0) - 8.716 (25-0)= 63.25 kcal/kg• Enthalpy Δ H (300-25) of Air = Δ H (300-0) - Δ H (25-0)•= 7.054 (300-0) - 6.949 (25-0)= 66.98 kcal/kg• Enthalpy Δ H (300-25) of N2 = Δ H (300-0) - Δ H (25-0)•= 7.023 (300-0) - 6.96 (25-0)= 69.03 kcal/kg• Stack Heat Loss (Qs) exit flue gas temp 300ºC
Kg of component formed

enthaply at teHeat content

per kg of fuelkcal perkg of fuelkcal/kg fuel

CO2

2.799

63.25

177.0367

N2

12.88969.03

889.7277Air

16.89866.98

1131.8280

Component

Total Heat Loss of Stack

2198.59

• Sensible heat of fuel gas at Datum temp 25ºC, fuel gas temp 50ºC
• Avg specific heat of fuel gas= 0.525 kcal/kgmolºC•
Δ Hf= mcp Δ T•
= 1 × 0.525 × (50-25)•= 13.125 kcal/kg•
LHV= 11975 kcal/kg•
Ha sensible heat of air at 25ºC = 0 kcal/kg•
Hf sensible of fuel gas at 50ºC
= 13.125 kcal/kg•
Total Heat Input= 11988.125kcal/kg• Assume:Radiation heat loss (Qr), 9.33% of heat input•
Therefore Qr= 9.33 × 11988.125 / 100•= 1118.492 kcal/kg•
Total Heat loss
= Qs + Qr•= 2198.59 + 1118.492•= 3317.082 kcal/kg•
Net Thermal Efficiency= heat output × 100•
heat input•= 72.33 %3.3 Improvement Result on Thermal Efficiency of package Boiler B(gas fired)• Basis:••••Flue Gas O2
4.5 %
CO2
7.8 %
Ex.air
23.9 %
Flue Gas Temp
270ºC
Datum Temp
30ºC
Composition of associated gas
1

2

3

4
Total weight

5
Net

6
Heating valuemolemole%

fraction

CH4

97.68

0.97691615.6311952

186810C 2 H61.82

0.0182

30.1

0.55

11352

6244

C 3 H80.34

0.0034

42.1

0.14

10946

1532

C4H10

0.15

0.001558.1

0.0910935

984

11918

1955570

Component

Total100.00

1.0000M.W(Kgs)

16.41
Avg(MW)

Heating Valuekcal/kgkcal

• Generated Steam

20 ton/hr•

Fuel gas consumption

1440 Nm3/hr•

Weight of fuel gas1054.93 kg/hr•

Generated Steam for 1 kg of fuel gas

18.96 kg/kg(f)•Heat input•

a. Net heating value of fuel gas (A.G)

11918 kcal/kg•

b. Sensible heat of AG (Fs)0•

AG fuel gas temp

30 ºC

•

Ambient temp

30 ºC

•

c. Sensible heat of air (Ha)0•d. Sensible heat of boiler feed water (BFW)•temp of boiler feed water

110 ºC• enthalpy of BFW at 30 ºC

30.01 kcal/kg• enthalpy of BFW at 110 ºC

110.2 kcal/kg• Sensible heat of BFW

18.96(110.230.01)kcal/kg•= 1520.402 kcal/kg• Total heat input= 13599.81 kcal/kg• Total heat loss (stack heat loss and radiation heat loss) is assumed
about 21 % of heat input.
• Heat loss

= 21 % ×13599.81kcal/kg•= 2822.07 kcal/kg• Net Thermal Efficiency= heat out put x 100••

heat input=79%Topping Unit
1. Flow MeterTag No.

Design 18-12-01 21-11-06(kl/h)

Crude Oil

FRC-101 168.5

7060

Preflashed Crude Oil

FRC-102 179.9

60

52.8

Main Fractionator Side Reflux

FRC-103 123.6

61.1

78.0

Whole Naphtha

FRC-151 39.9

13.5

11.0

Kerosene

FRC-108 33.2

6.3

5.25

Light Gas Oil

FRC-110 35.3

19.9

10.5

Heavy Gas Oil

FRC-112 25.6

10.5

14.7

Kerosene Stripping Steam

FI-107

0.474

0.189

0.500

Light Gas Oil Stripping Steam

FI-109

0.499

0.189

0.154

Heavy Gas Oil Stripping Steam

FI-111

0.351

0.224

0.080

Topped Crude Oil Stripping Steam FI-1061.246

0.800

0.650

2. Temperature (Fractionator and Drum)
Tag No.

Design 18-12-01 21-11-06(kl/h)

Cruder Heater Outlet

TRC-101 374

340

345

Main Fractionator TopTRC-102 138

125

120

Main Fractionator Kero. Draw off

175

175

Main Fractionator LGO Draw off

230

200

Main Fractionator HGO Draw off

290

285

Main Fractionator Bottom

349

305

305

Main Fractionator O/H Drum

40

28

38

Preflash Tower

171

144

128

Kerosene Stripper

184

148

135

LGO Stripper

257

225

215

HGO Stripper

307

282

285

3. Temperature (Heat exchanger)
Tag No.

Design18-12-01 21-11-06(kl/h)
Side Reflux Shell Side In/Out(HE-101) 38/86

35/86

38/88

Tube Side In/Out(HE-101) 157/86

150/80130/80

Shell Side In/Out(HE-102) 184/100 143/80

125/77

Tube Side In/Out(HE-102) 86/100

80/103

Shell Side In/Out(HE-103) 257/125 225/115

220/115

Tube Side In/Out(HE-103) 100/125 96/110

100/110

Shell Side In/Out (HE-104) 246/159 230/150

230/145

Tube Side In/Out(HE-104) 125/159 110/150

110/130

Shell Side In/Out(HE-105) 307/180 282/160

280/215

Tube Side In/Out(HE-105) 159/171 150/170

130/135

Kero. H.E

LGO H.E

T.C H.E

HGO H.E

86/96

4. Pressure and Others
Tag No.

Design 18-12-01 21-11-06(kl/h)

Main Fractionator O/H Pressure

0.95

0.6

Main Fractionator O/H Drum Press PRC-101 0.5

0.5

Stabilizer O/H Pressure

8.0

Stabilizer O/H Drum Pressure

PRC-151
8.0

Splitter O/H Pressure
Splitter O/H Drum Pressure

0.4

8.0
Not used

PRC-171 0.7

Not used

Crude Charge Heater
Fuel Oil Rate

0.45

0.30

Fuel Oil Sp.Gr

0.86150.8637

Fuel Oil Temp

5350

Fuel Gas Rate

0.37

0.37

Fuel Gas M.W (AG+HFG)

17.92

17.961

Fuel Gas Temp50

Fuel Gas Press3.4

4.2

Flue Gas Temp.(Stack Inlet)

A/B

294/307

Radiation Temp

A/B

606/629 582/560

Convection Wall Inside Temp A/B

457/488 412/419

Draft Pressure

Floor

A/B

-7/-7

Convection

A/B

2/n.a

Stack In

A/B

19/5

Stack Out

A/B

n.a/n.aDamper Opening

A/B

10/15

Flue Gas

O2 %

A/B

6.2/7

CO2 %

A/B

6/6

Excess Air %A/B

36.17/43.4

Furnace Inside Temp
Stack Outside Temp

580
A/B

F.C/F.C

552

138/122 135/120

Technical Data on Package Boiler B
1. Flow Rate
Design18-12-01

21-11-06

10 3103 kg/hr

103 kg/hrkg/hr
Boiler Feed Water

FQ 1402 B

36.9

17.6

22.5

FQ 1402 C

36.9

15.8

11.25

36

18. 9

20.1

36

15.8

9.9

Air to Boiler B

45000

15126

17869

Air to Boiler C

45000

14783

11011

to Boiler B
Boiler Feed Water
to Boiler B
HPsteamproduction of
Boiler B
HPsteamproduction of
Boiler Ckg/hr
Fuel oil to Boiler C

2638

1.28 kl/hr

0.83

2. Temperature

Hp steam temp.

TIC 1401C

300

290

290

Lp steam temp

TIC 1404

151145142

Deaerator temp

110

96-98

97

Fuel oil temp

303232Pure water temp

15Ambient

Ambient9697

B

215270

C200250

Boiler Feed water temp
Flue Gas Temp
Outersurface

3. Pressure and others
Tag.NoDesign18-12-01

21-11-06(kg/cm2-G)
HP Steam Pressure

PI-1421

3028

27.5

LP Steam Pressure

PI-1422

4

3.4

3.4

Deaerator Pressure

PI-1404

0.43

0.36

0.35

Draft Pressure Inside of Furnace PI-1413 B1

30mmH2O

10mmH2OAir Supplied

PI-1413 B2

80mmH2O

19mmH2OAir Supplied

PI-1413 C1

70mmH2O<0 mmH2O

Inside of Furnace PI-1413 C2
Fuel Gas Pressure to Boiler

PIA-1431

Molecular Weight of Fuel Gas>0 mmH2O 10mmH2O
2.72.6

16.49

16.49

Flue Gas O2 %B/C

6.0/ 5.6%

4.5/4.8%

CO2 %

B/C

8.2/10.6%

7.8/8.0%

Excess Air %B/C

35.7/33.6% 23.9/26.09%(Gas / Oil)

BOILER WALL SURFACE TEMPERATURE
BOILER "B"
Date 19.12.2001

Date 18.11.2006

RIGHT SIDERIGHT SIDE

7960.8

67.6

4243

40.2

89.7

56.4

53.1

4241

39.5

94.1

77.1

69.0

65

55

45

LEFT SIDE

LEFT SIDE

42.5

48.4

44.7

34.4

33.8

34.3

41.4

47.4

70.9

36393965.7

67.655.8353840

BACK SIDE
157

BACK SIDE

55.6

34.1

38.1

34.5

36.1

44.2

44.1

40

51

41

71.2

45.6

4352

51

• 4.0 Conclusion• Nowadays, the trend of energy in the world istremendously increasing as the demand for energy
has been rising up.
• In order to step up the industrialization andurbanization processes and to improve people's living
standard at current growth rate, all of our ASEAN
countries stress our needs for more energy.
• Energy production and consumption have been
increasing steadily and as a consequence, theeffective and efficient utilization of energy becomes
more and more evident, since the crude oil price has
become up day by day.

•The action program of energy savings for the oilindustry in Myanmar for the short term is being
carried out under the management of Ministry ofEnergy.

• As the results of energy efficiency and conservation
activities in Mann Refinery, the net thermal
efficiency on Boiler B and Furnace for Topping Unit
becomes 79%, 72.3% respectively compared to 70%
and 68.68% audited in December 2001 which areconsidered as the base line.
• Therefore, it is found that 9 % of energy efficiency
Boiler B and 3.65% of energy efficiency for Furnaceof Topping Unit becomes increase.

•For sustainable economic development in our country,
the long term energy saving program is an essential
need such as• Energy management training• Introduction of new technologies• Promotion of international energy conservation
efforts•Broader introduction of clean technology andmodification program on energy efficiency andconservation, etc.

•

Our organizational strategy is to upgrade andpromote advanced technologies in energy
sector.

•Vision is to be most efficient use of energy andto get higher performance level of production
in enterprise.

••In order to do so, Ministry of Energy, Myanmar
has been enhancing the cooperation withinternational organization for obtaining
technical assistant and financial support.
Myanmar has a chance in the contribution of thelong term energy saving program, our country
would be of great benefit for promotion of energy
efficiency and conservation for oil industry inMyanmar.

Energy Consumption Data from the year of 2000-01 to 2005-06
Petrochemical Complex , Thanbayakan (Mann)
Myanma Petrochemical Enterprise, Ministry of Energy, Myanmar

year

Associated Gas

Nm3

Home Fuel Gas

MM. Kcal Nm3

PowerTotal Fuel Consump

MM. Kcal

MM.KcalKwh

Grand Total Through put

MM. KcalMM. KcalIG

MM. Kcalper ton of crude oil

2000-01

13,890,555

133,177

8,382,071

80,364

213,541

23,489,275

20,214

233,755

90,366,269

0.670

2001-02

10,659,067

102,195

8,376,699

80,312

182,507

22,928,575

19,732

202,239

91,780,820

0.571

2002-03

11,298,275

108,323

8,219,461

78,805

187,128

24,272,718

20,889208,017

104,890,4460.514

2003-04

9,056,950

86,834

9,595,622

91,999178,833

24,157,068

20,789199,622

109,580,715

0.472

2004-05

10,249,925

98,272

10,437,937

100,075

198,347

24,454,888

21,045219,392

112,544,925

0.505

2005-06

18,432,165

176,720

9,695,561

92,957

269,677

24,179,293

20,808290,485

109,641,845

0.686

Thank You