HH Brothers Group

COAL:

"Coal is the altered remains of prehistoric vegetation that originally accumulated in swamps and peat bogs."

Coal formation began during the Carboniferous Period – known as the first coal age – which spanned 360 million to 290 million years ago.

The quality of each coal deposit is determined by temperature and pressure and by the length of time in formation, which is referred to as its "organic maturity". Initially the peat is converted into lignite or "brown coal" – these are coaltypes with low organic maturity. In comparison to other coals, lignite is quite soft and its colour can range from dark black to various shades of brown.

Over many more millions of years, the continuing effects of temperature and pressure produces further change in the lignite, progressively increasing its organic maturity and transforming it into the range known as "sub-bituminous" coals.

Further chemical and physical changes occur until these coals became harder and blacker, forming the "bituminous" or "hard coals". Under the right conditions, the progressive increase in the organic maturity can continue, finally forming anthracite.

Source: World Coal Institute

COAL USES:

Coal is one of the world`s most important sources of energy. Coal has many important uses worldwide. The most significant uses are in electricity generation, steel production, cement manufacturing and as a liquid fuel.

The energy is locked into the coal.

PRESENTLY WE CAN PROPOSE THE FOLLOWING SPECIFICATIONS AND QUANTITIES:

Specification for GCV 6500 (Reject 6300)

S/ No	Parameter	Basis		Guaranteed	Rejection	Unit	Test Method / Remarks
01	Total Moisture	ARB		11-12 %	>15 %	%	ASTM D 3302 - 02A
02	Inherent Moisture	ADB	6 Max			%		ASTM D 3173 - 03
03	Ash Content	ADB		13-14 Max	> 15	%	ASTM D 3174 - 02
04	Volatile Matter	ADB		42-45 Max	-	%	ASTM D 3175 - 02
05	Fixed Carbon	ADB		By difference	-	%	ASTM D 3172 - 02
06	Total Sulfur	ADB		1 max	>1%	%	ASTM D 4239 - 02A
07	Hard Grove Index	ADB		40-45	-	Index Point	ASTM D 409 - 02
08	Gross Caloric Value (GAD)	ADB		6500	<6300	Kcal / Kg	ASTM 5865 - 04
09	Size (Crushed)	ADB		0-50	-	mm	90% Passing min
10	Gross Caloric Value (GAR)	ARB		6158	-	Kcal / Kg	Approx
11	Gross Caloric Value	DB		6989	-	Kcal / Kg	Approx
12	Net Caloric Value	NAR		5868	-	Kcal / Kg	Approx
13	British Thermal Unit (BTU)	-		11700	-	Btu/lb	Approx
14	Metric Joules (MJ)	-		27.22	-	MJ/kg	Approx
15	Ash Fusion Temperature	-		1350	-	Deg C	Approx

Specification for GCV 6300 (Reject 6100)

S/ No	Parameter	Basis		Guaranteed	Rejection	Unit	Test Method / Remarks
01	Total Moisture	ARB		14-16 %	>18 %	%	ASTM D 3302 - 02A
02	Inherent Moisture	ADB	7-9 % Max			%		ASTM D 3173 - 03
03	Ash Content	ADB		11-13 % Max	> 15	%	ASTM D 3174 - 02
04	Volatile Matter	ADB		38-42 % approx	-	%	ASTM D 3175 - 02
05	Fixed Carbon	ADB		By difference	-	%	ASTM D 3172 - 02
06	Total Sulfur	ADB		<1 max	>1%	%	ASTM D 4239 - 02A
07	Hard Grove Index	ADB		42-45 approx	-	Index Point	ASTM D 409 - 02
08	Gross Caloric Value (GAD)	ADB		6300	<6100	Kcal / Kg	ASTM 5865 - 04
09	Size (Crushed)	ADB		0-50	-	mm	90% Passing min
10	Gross Caloric Value (GAR)	ARB		5758	-	Kcal / Kg	Approx
11	Gross Caloric Value	DB		6774	-	Kcal / Kg	Approx
12	Net Caloric Value	NAR		5458	-	Kcal / Kg	Approx
13	British Thermal Unit (BTU)	-		11340	-	Btu/lb	Approx
14	Metric Joules (MJ)	-		26.38	-	MJ/kg	Approx
15	Ash Fusion Temperature	-		1300	-	Deg C	Approx

Specification for GCV 5800 (Reject 5600)

S/ No	Parameter	Basis		Guaranteed	Rejection	Unit	Test Method / Remarks
01	Total Moisture	ARB		24-26 %	>28 %	%	ASTM D 3302 - 02A
02	Inherent Moisture	ADB	13-15 % Max			%		ASTM D 3173 - 03
03	Ash Content	ADB		10 % Max	> 12	%	ASTM D 3174 - 02
04	Volatile Matter	ADB		38-42 % approx	-	%	ASTM D 3175 - 02
05	Fixed Carbon	ADB		By difference	-	%	ASTM D 3172 - 02
06	Total Sulfur	ADB		<1 max	>1%	%	ASTM D 4239 - 02A
07	Hard Grove Index	ADB		42-45 approx	-	Index Point	ASTM D 409 - 02
08	Gross Caloric Value (GAD)	ADB		5800	<5600	Kcal / Kg	ASTM 5865 - 04
09	Size (Crushed)	ADB		0-50	-	mm	90% Passing min
10	Gross Caloric Value (GAR)	ARB		5049	-	Kcal / Kg	Approx
11	Gross Caloric Value	DB		6824	-	Kcal / Kg	Approx
12	Net Caloric Value	NAR		4684	-	Kcal / Kg	Approx
13	British Thermal Unit (BTU)	-		10440	-	Btu/lb	Approx
14	Metric Joules (MJ)	-		24.28	-	MJ/kg	Approx
15	Ash Fusion Temperature	-		1250	-	Deg C	Approx

Specification for GCV 5500 (Reject 5300)

S/ No	Parameter	Basis		Guaranteed	Rejection	Unit	Test Method / Remarks
01	Total Moisture	ARB		34 %	>36 %	%	ASTM D 3302 - 02A
02	Inherent Moisture	ADB	15-17 % Max			%		ASTM D 3173 - 03
03	Ash Content	ADB		7 % Max	> 8 %	%	ASTM D 3174 - 02
04	Volatile Matter	ADB		38-42 % approx	-	%	ASTM D 3175 - 02
05	Fixed Carbon	ADB		By difference	-	%	ASTM D 3172 - 02
06	Total Sulfur	ADB		<0,8 max	>1%	%	ASTM D 4239 - 02A
07	Hard Grove Index	ADB		45-50 approx	-	Index Point	ASTM D 409 - 02
08	Gross Caloric Value (GAD)	ADB		5500	<5300	Kcal / Kg	ASTM 5865 - 04
09	Size (Crushed)	ADB		0-50	-	mm	90% Passing min
10	Gross Caloric Value (GAR)	ARB		4373	-	Kcal / Kg	Approx
11	Gross Caloric Value	DB		6627	-	Kcal / Kg	Approx
12	Net Caloric Value	NAR		3961	-	Kcal / Kg	Approx
13	British Thermal Unit (BTU)	-		9900	-	Btu/lb	Approx
14	Metric Joules (MJ)	-		23.03	-	MJ/kg	Approx
15	Ash Fusion Temperature	-		1200	-	Deg C	Approx