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no. Parameter Batubara A Batubara B Batubara C

1 Total moisture (% ar) 19.7 36.23 2.41

2 Inherent moisture (% a!b) ".#4 1"."2 2.$1

3 olatile matter (% a!b) 32.91 42."9 "9."3

4 Ash (% a!b) 33.39 2.99 ".41

" &i'e! arbon (% a!b) 27.#6 3#.9 33.$"

6 Calori *alue (+ross) (,,al-,+ a!b) 4634 "6#6 #$$3

klasifkasi ASTM D388-199

Analisa balik untuk perhitungan Analisa Proksimat

no. Parameter Batubara A Batubara B Batubara C

1 Total moisture (% ar) 19.7 36.23 2.41

2 Inherent moisture (% a!b) ".#4 1"."2 2.$1

3 olatile matter (% a!b) 32.91 42."9 "9."3

4 Ash (% a!b) 33.39 2.99 ".41

" &i'e! arbon (% a!b) 27.#6 3#.9 33.$"

6 Calori *alue (+ross) (,,al-,+ a!b) 4634 "6#6 #$$3

1 !ian++a massa a/al masin+0masin+ batubara 1,+ 1$$$

2 samel ui lab analisa ro,simat 1 +ram bentu, serbu, 1

Batubara A Batubara B Batubara C

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total moisture (+ram) 197 362.3 24.1

massa batubara tana air (+ram) #$3 637.7 97".9

I. perhitungan menari !ata massa batubara "a!b# setelah !iangin-anginkan

a massa ua air an+ hilan+ !ian+in0an+in,an b massa sisa batubara set

massa ua air an+ hilan+ setelah !ianas,an 1$" !eraat elius

a merua,an *ariabel an+ !imasu,an !en+an ara trial5error

1$$$ a b

147.16 #"2.#4

147.17 #"2.#3147.1# #"2.#2

147.19 #"2.#1

147.2 #"2.#

II. perhitungan massa tiap parameter "%a!b#

!en+an masin+0masin+ 2 !ata massa a!b batubara

no. Parameter Batubara A Batubara B Batubara C

1 olatile matter (% a!b) 32.91 42."9 "9."3

2 Ash (% a!b) 33.39 2.99 ".41

3 &i'e! arbon (% a!b) 27.#6 3#.9 33.$"

4 Calori *alue (+ross) (,,al-,+ a!b) 4634 "6#6 #$$3

Batubara A Batubara B Batubara C

massa a!b batubara (+ram) #"2.#1 7"4.#6 99".93

#"2.# 7"4.#" 99".92

no.arameter Batubara A Batub

massa batubara (a!b) (+ram) #"2.#1 #"2.# 7"4.#6

1 massa *olatile matter (+ram) 2#$.66 2#$.66 321.49

2 massa Ash (+ram) 2#4.7" 2#4.7" 22."7

3 massa 'e! arbon (+ram) 237."9 237."9 293.64

III. tabulasi massa per parameter kualitas batubara

ber!asar,an 2 !ata massa batubara (a!b)

ab

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massa tiap Parameter "gram# $atub

massa batuabara "a!b# "gram# 8&'.81

Total MoistureSur(ae Moisture 147.19

Inherent Moisture 49.#1

Mineral MatterAsh 2#4.7"

)MM)M 2#$.66

Pure *oal)+M

,ie! *arbon 237."9

 Total massa batubara 1$$$.$$6

ineral atter 1.1 ' Ash 313.229

0 Ash 2#.47"

0 2"2.1#4

massa !mm8 batubara &C 4#9.777

I). perhitungan klasifkasia. 'e! arbon !alam :!mm8:

Parameter "gram# $atubara A $atub

massa batuabara "a!b# 8&'.81 8&'.8 &/.80

fe! arbon "% !mm(# 4#."1$4 4#."1$4 47.9117

b. *olatile matter

Parameter "gram# $atubara A $atub

massa batuabara "a!b# 8&'.81 8&'.8 &/.80

olatile matter "% !mm(# "7.3$4 "7.3$4 "2.4"7

. ;C (mmm8)

bila !itinau !ari 2 arameter (&C !an ) ti!a, sensiti8 !alam arameter ,lasi,asi

;C (mmm8) tana inherent moist !an mineratl matter

no. Parameter Batubara A Batub

1 Calori *alue (+ross) (,,al-,+ a!b) 4634 "6

2 massa batubara (a!b) (+ram) #"2.#1 #"2.# 7"4.#6

Parameter "gram# $atubara A $atub

massa batuabara "a!b# 8&'.81 8&'.8 &/.80

massa air (inherent) (+ram) 49.#1 49.# 117.16

massa batubara (!mm8) (+ram) 4#9.777 4#9.772 612.#7#

massa batubara (mmm8) (+ram) "39."#7 "39."72 73$.$3#

Calori *alue (+ross) (,al-+) (mmm8)7323.97 7324.1$ "#79.33

,alori(a!b)'massa(a!b) < massa(mmm8)

Calori *alue (+ross) (Btu-lb) (mmm8) 131#3.1" 131#3.3# 1$"#2.79

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=lasi,asi A>T ? bituminus B oal ? bitumin

,,al-,+ ,al-+

? hi+h *olatile

$. pen2elasan urutan rank klasifkasi batubara "ASTM#

samel Batubara A Batubara B Batubara C

asal samel ambi ambi ,albar

kalori aal !alam 4a!b4 nilai kalori ini !i!apat !engan membakar batubara

no. Parameter Batubara A Batubara B Batubara C

1 Calori *alue (+ross) (,,al-,+ a!b) 4634 "6#6 #$$3

kalori setelah perhitungan !alam m6mm(. Artin5a energi hasil panas7kalor se

no. Parameter Batubara A Batubara B Batubara C

1 Calori *alue (Btu-lb) (mmm8) 131#3 1$"#2 1"316

massa tiap Parameter "gram# $atub

massa batuabara "a!b# "gram# 8&'.81

Total MoistureSur(ae Moisture 147.19

Inherent Moisture 49.#1

Mineral MatterAsh 2#4.7"

)MM)M 2#$.66

Pure *oal

)+M

,ie! *arbon 237."9

,lasi,asi (A>T) ? bitumin

ineral atter 1.1 ' Ash 313.23

0 Ash 2#.4#

0 2"2.1#

massa !mm8 batubara &C 4#9.7#

embahasan batubara C memili,i 'e! arbon an+ alin+ tin++i

embahasan batubara A !an B !ari +ross alori :a!b: batubara A @

Inherent moisture batubara A @

Ash batubara A

a,ibatna !ari erhitun+an ,on*ersi

/alauun !ari 'e! arbon

sehin++a ,alori !alam mmm8

batubara A

batubara B

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+ram

+ram

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  lah !ian+in0an+in,an

$atubara A

#$3 sur8ae(%ar) inherent(%a!b) 1$$$ a

49.#4 14.716 ".#44$$ 24".12

49.#3 14.72 ".#429$ 24".1349.#2 14.72 ".#41#$ 24".14

49.#1 14.719 ".#4$69 24".1"

49.# 14.72 ".#39"9 24".16

ra B Batubara C

7"4.#" 99".93 99".92

321.49 "92.## "92.#7

22."7 "3.## "3.##

293.64 329.1" 329.1"

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ra A $atubara $ $atubara *

8&'.8 &/.80 &/.8& 99&.93 99&.9'

147.2 24".14 24".1" 4.$7 4.$#

49.# 117.16 117.1" 2$.$3 2$.$2

2#4.7" 22."7 22."7 "3.## "3.##

2#$.66 321.49 321.49 "92.## "92.#7

237."9 293.64 293.64 329.1" 329.1"

999.996 1$$$.$$6 999.997 1$$$.$12 1$$$.$$2

313.22" 24.#27 24.#27 "9.26# "9.267

2#.47" 2.2"7 2.2"7 ".3## ".3##

2"2.1#1 319.23# 319.234 "#7.4#9 "#7.4#3

4#9.772 612.#7# 612.#7$ 916.644 916.63"

ra $ $atubara *

&/.8& 99&.93 99&.9'

47.9117 3".9$#7 3".9$#7

ra $ $atubara *

&/.8& 99&.93 99&.9'

"2.4"7 64.679 64.679

 ma,a harus men++una,an arameter ,eti+a ;C (+ross alori*i *alue)

ra B Batubara C

6 #$$3

7"4.#" 99".93 99".92

ra $ $atubara *

&/.8& 99&.93 99&.9'

117.1" 2$.$3 2$.$2

612.#7$ 916.644 916.63"

73$.$2$ 936.674 936.6""

"#79.39 #"$9.29 #"$9.3#

1$"#2.91 1"316.72 1"316.##

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us C oal ? bituminus A oal

  engan semua pengotorn5a6 artin5a energi hasil panas7kalor a!a 5ang !iguna

bagian !igunakan untuk membakar inherent moisture sa2a6 akibatn5a nilai k

ra A $atubara $ $atubara *

8&'.8 &/.80 &/.8& 99&.93 99&.9'

147.2 24".14 24".1" 4.$7 4.$#

49.# 117.16 117.1" 2$.$3 2$.$2

2#4.7" 22."7 22."7 "3.## "3.##

2#$.66 321.49 321.49 "92.## "92.#7

237."9 293.64 293.64 329.1" 329.1"

us B oal ? bituminus C oal ? bituminus A oal

313.22 24.#3 24.#3 "9.27 "9.27

2#.47 2.26 2.26 ".39 ".39

2"2.1# 319.24 319.23 "#7.49 "#7.4#

4#9.77 612.## 612.#7 916.64 916.63

  alin+ tin++i !an inherent moisture an+ teren!ah sehin++a nilai ,alori hasil emb

batubara B

  batubara B se,itar 2'

batubara B se,itar 12'

 !ari :a!b: ,e :mmm8: nilai ,alori batubara A ,alori batubara B (en+aruh ,an!un+a

batubara A @ batubara B

batubara A @ batubara B

relati8 se!i,it hilan+ an+ !isera oleh inherent moisture

relati8 bana, hilan+ an+ !isera oleh inherent moisture

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$asis Data

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$atubara $

b 637.7 sur8ae(%ar) inherent(%a!b) 1$$$ a

7"4.## 117.1# 24."12 1"."23$$ 4.$4

7"4.#7 117.17 24."13 1"."21## 4.$"7"4.#6 117.16 24."14 1"."2$76 4.$6

7"4.#" 117.1" 24."1" 1"."1964 4.$7

7"4.#4 117.14 24."16 1"."1#"2 4.$#

4.$9

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kan "!iserap# untuk membakar inherent moisture !an mineral matter

lori !alam 4m6mm(4 selalu lebih besar !aripa!a !alam 4a!b4

,aran !alam :mmm8: men+hasil,an ,alori an+ alin+ tin++i.

 en+otorna)

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$atubara *

b 97".9 sur8ae(%ar) inherent(%a!b)

99".96 2$.$6 $.4$4 2.$1414

99".9" 2$.$" $.4$" 2.$131"99".94 2$.$4 $.4$6 2.$1217

99".93 2$.$3 $.4$7 2.$1119

99".92 2$.$2 $.4$# 2.$1$2$

99".91 2$.$1 $.4$9 2.$$922

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