Xay Dung Nha May5-Dr Muhammad Saleem

8/12/2019 Xay Dung Nha May5-Dr Muhammad Saleem

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Presentation

By

Dr.Muhammad SalimSite Incharge

Underground CoalGasification, Project Thar


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UNDERGROUND COAL GASIFICATION

PROJECT THAR

1. The project is based on an insitu technique to

recover the fuel or feedstock value of coal, that

is not economically available through conventional

technologies.

2. Lignite is a low rank coal and most suited to UCG

technique.

3. UCG promises lower capital/operating costs and also

has other advantages such as no human labourunderground.


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4. We in Pakistan are blessed with this resource in

Thar Coal Field located in the eastern part of

Tharparkar Desert, Sindh.

5. Reasonably assured reserves of 175 billion tons of

Lignite Coal are available at Thar alone.

6. Coal reserves are known for the last twenty years

but unexploited, these lie 120 to 180 meters belowthe surface.


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7. Now the energy security scenario in the country hasaroused interest in the utilization of this big coal

reserve.

8. How significant this fossil fuel is, can be adjudgedfrom the share of coal in the production of electricity

in the world.


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No Source % No Source %

1 Coal Based 41.61 4 Nuclear 13.752 Oil Based 5.63 5 Hydro Power 15.57

3 Gas Based 20.87 6 Others 2.25

Total Power Generation of World

No Source % No Source %1 Coal Based 54.6 4 Hydro Power 22.8

2 Gas Based 13.0 5 Nuclear 2.9

3 Oil Based 0.9 6 Others 7.9

Total Generation capacity of IndiaTotal Generation capacity of India

No Source % No Source %

1 Coal Based 2.27 4 Hydro Power 32.54

2 Gas Based 4.50 5 Nuclear 2.23

3 Oil Based 58.37

Total Generation capacity of Pakistan


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Cost of Electricity

Comparison of Investment & Cost

Item

Surface

gasification

Underground

coal

gasification

Construction

Investment

45006000

Rs. / m3

15002000

Rs. / m3

Gas cost5.08.0

Rs. / m3

2.03.5

Rs. / m3


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Temperature 200-550oC Temperature 550-900oC Temperature more than 900oC

Drying & Pyrolysis Zone Reduction Zone Oxidation Zone

Coal CH4 + H2O

CO + CO2

H2 + C

Hydrocarbons

C + H2O CO + H2

CO2 + C 2CO

CO + H2O CO2 + H2

CO + 2H2 CH4

C + O2 CO2

C +1/2 O2 CO

CO +1/2O2 CO2

Coal + O2 CO2 + CO + H2O

Schematic of the processes involved in UCG

Air, Oxygen & Steam Product Gases ( CO, CO2, H2, CH4, N2 , Steam & Tar


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Total Moisture (A R) 39.27%

Immane Water 11.09%

Ash Content (A R) 10.97%Volatile matter 47.64%

Fixed Carbon (AR) 30.14%

Total Sulphur 0.72%Heating Value 4937 BTU/Nm

COMPOSITION OF LIGNITE COAL

BLOCK-V


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Syngas H2 O2 N2 CH4 CO CO2 HV

By Air

%

16 0.2 58 3.5 5 17.5 945Kcal/Nm

By 60%

Oxygen

30 0.0 30 4 15 21 1710Kcal/Nm

EXPECTED SYNGAS COMPOSITION


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Generation of 100 M Watts through underground

coal gasification

Total project costUS $ = 115.6 million

( Rs. 9883.6 million)

Total funds received

US $ = 9.10million


Funds allocated in PSDP

2011 2012

US $ = 12.51 million


First release of fund & commencement

of the project = 28 April, 2010


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Project Milestone

b. Main Machinery ( All purchases under Sindh PPRA rules )

S. No. Description Date Status

1 Air compressor

( process)

15 8 2010

Expected delivery

(15 1 2011)

Not delivered

2 Air compressor

( Process) placed to thesecond lowest for

Hitachi Compressor

after negotiation at the

lowest cost. Expected

date of delivery -- Third

Week of April 2011..

18 2 2010

(Expected date ofDelivery Third Week of

April 2011..)

These machines have

been delayed by thesupplier. Now the

expected date of

delivery is Feb. 2012.

3. Air compressor(Startup)

15 12 - 2010Expected delivery

(15 4 2011 )

These machines weredelayed by the

manufacturers due to

modifications

necessitated by the hot

weather at Thar. They

have been delivered in

August.


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Project Milestone

S.

No.Description Date Status

1 Land Acquisition 2 7 - 2010Acquired about 27

acres

2 Residential Colony 17 7 - 201090 % complete

( 39,312 sq. ft )

3

Technical Plant, workshop,

stores, laboratory, compressor

station, power station, control

room and admin block.

1 11 - 201060 % complete

( 27,756 sq. ft. )

a. CIVIL WORK


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Civil Works done for surface pipingBrick Masonry = 6800 cftLean Concrete 1:4:8 = 1020 cftConcrete 1:2:4 = 512 cftSteel fixing = 1 Ton

Material used for Civil WorksBricks = 90,000 no.Cement = 700 bags

Sand = 5000 cftCrush = 2000 cftSteel = 01 Ton


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Others worksInstallation of High Pressure compressor

Installation of 2 Nos. fuel Tanks 19000liter capacity each.

Installation of Cooling Towers.

Installation of 100 KVA Generator atresidential colony.


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Installation R. O. Plant for residential

colony.

Installation of Saline water tube well.

Installation of Pumping wells.


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SITE April, 2010


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Drilling Rigs in Operation


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Drilling and Casing of Gas Wells


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Welding of Surface

Piping


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Surface piping installation


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Surface Piping


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Surface Piping for

Gasifier

Well Head

Assembly


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Well Head

Assembly


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Diesel Generators


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High Pressure Compressors


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June, 2010COLONY


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June, 2010COLONY


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COLONY April, 2011


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Xay Dung Nha May5-Dr Muhammad Saleem