lime pretreatment of poplar wood
DESCRIPTION
Lime Pretreatment of Poplar wood. Chemical Engineering Department Texas A&M University. Solubilized. Others. Solubilized. Lignin, Ash & Extractives. Others. Xylan & Mannan. Lignin, Ash & Extractives. Xylan & Mannan. Glucan. Glucan. Lime Pretreatment at 25°C. - PowerPoint PPT PresentationTRANSCRIPT
Lime Pretreatment of Poplar wood
Chemical Engineering Department
Texas A&M University
Lime Pretreatment at 25°C
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4
Pretreatment time, weeks
Wei
ght f
ract
ions
of c
ompo
nent
sg/
100
g ra
w bi
omas
s
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4
Pretreatment time, weeks
Weig
ht fr
actio
ns o
f com
pone
nts
g/10
0 g ra
w bi
omas
s
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
Oxidative Non-oxidative
Lime Pretreatment at 35°C
Oxidative Non-oxidative
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4
Pretreatment time, weeks
Wei
ght f
ract
ions
of c
ompo
nent
sg/
100
g ra
w b
iom
ass
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4
Pretreatment time, weeksW
eigh
t fra
ctio
ns o
f com
pone
nts
g/10
0 g
raw
bio
mas
s
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
Lime Pretreatment at 45°C
Oxidative Non-oxidative
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4
Pretreatm ent tim e, w eeks
Wei
gh
t fr
acti
on
s o
f co
mp
on
ents
g/1
00 g
raw
bio
mas
s
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4Pretreatment time, weeks
Wei
ght f
ract
ions
of c
ompo
nent
sg/
100
g ra
w b
iom
ass
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
Lime Pretreatment at 55°C
Oxidative Non-oxidative
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4
Pretreatm ent tim e, w eeks
Wei
gh
t fr
acti
on
s o
f co
mp
on
ents
g/1
00 g
raw
bio
mas
s
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4Pretreatment time, weeks
Wei
gh
t fra
ctio
ns
of c
om
po
nen
tsg
/100
g r
aw b
iom
ass
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4
Pretreatm ent tim e, w eeksW
eigh
t fra
ctio
ns o
f com
pone
nts
g/10
0 g
raw
bio
mas
s
Lime Pretreatment at 65°C
Oxidative Non-oxidative
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4Pretreatment time, weeks
Wei
ght f
ract
ions
of c
ompo
nent
sg/
100
g ra
w b
iom
ass
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
Glucan
Xylan & Mannan
Lignin, Ash & Extractives
Others
Solubilized
25°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatment time, weeks
Yie
ld
Oxidative Non-oxidative
35°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatment time, weeks
Yie
ld
Oxidative Non-oxidative
45°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatment time, weeks
Yie
ld
Oxidative Non-oxidative
g
gluc
an r
ecov
erd
.
10
0 g
gluc
an in
raw
bio
mas
s
Acid hydrolysis yield for glucose
g
gluc
an r
ecov
erd
.
10
0 g
gluc
an in
raw
bio
mas
s
g
gluc
an r
ecov
erd
.
10
0 g
gluc
an in
raw
bio
mas
s
65°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatment time, weeks
Yie
ld
Oxidative Non-oxidative
55°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatment time, weeks
Yie
ld
Oxidative Non-oxidative
Acid hydrolysis yield for glucoseContinued
g
gluc
an r
ecov
erd
.
10
0 g
gluc
an in
raw
bio
mas
s
g
gluc
an r
ecov
erd
.
10
0 g
gluc
an in
raw
bio
mas
s
25°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yie
ld
Oxidative Non-oxidative
35°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatment time, weeks
Yie
ld
Oxidative Non-oxidative
45°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yie
ld
Oxidative Non-oxidative
g
xyla
n re
cove
rd
.
100
g xy
lan
in r
aw b
iom
ass
Acid hydrolysis yield of xylose
g
xyla
n re
cove
rd
.
100
g xy
lan
in r
aw b
iom
ass
g
xyla
n re
cove
rd
.
100
g xy
lan
in r
aw b
iom
ass
65°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatment time, weeksY
ield
Oxidative Non-oxidative
55°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yie
ld
Oxidative Non-oxidative
Acid hydrolysis yield of xylosecontinued
g
xyla
n re
cove
rd
.
100
g xy
lan
in r
aw b
iom
ass
g
xyla
n re
cove
rd
.
100
g xy
lan
in r
aw b
iom
ass
Lignin remained
25°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yie
ld
Oxidative Non-oxidative
g
ligni
n re
mai
ning
.
100
g lig
nin
in r
aw b
iom
ass
35°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yie
ld
Oxidative Non-oxidative
g
ligni
n re
mai
ning
.
100
g lig
nin
in r
aw b
iom
ass
45°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yie
ld
Oxidative Non-oxidative
g
ligni
n re
mai
ning
.
100
g lig
nin
in r
aw b
iom
ass
65°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yie
ldOxidative Non-oxidative
55°C
0
20
40
60
80
100
120
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yiel
d
Oxidative Non-oxidative
g
ligni
n re
mai
ning
.
100
g lig
nin
in r
aw b
iom
ass
g
ligni
n re
mai
ning
.
100
g lig
nin
in r
aw b
iom
ass
Lignin remainedcontinued
Enzymatic Hydrolysis15 FPU/g glucan in raw biomass
25°C
0
5
10
15
20
25
30
35
40
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yie
ld
Oxidative Non-oxidative
35°C
0
5
10
15
20
25
30
35
0 1 2 3 4 5
Pretreatm ent tim e, w eeks
Yie
ld
Oxidative Non-oxidative
45°C
0
10
20
30
40
50
0 1 2 3 4 5
Pretreatment time , weeks
Yie
ld
Oxidative Non-oxidative
55°C
0
10
20
30
40
50
60
0 1 2 3 4 5
Pretreatment time, weeks
Yie
ld
Oxidative Non-oxidative
g
gluc
an h
ydro
lyze
d
.
100
g gl
ucan
in r
aw b
iom
ass
g
gluc
an h
ydro
lyze
d
.
100
g gl
ucan
in r
aw b
iom
ass
g
gluc
an h
ydro
lyze
d
.
100
g gl
ucan
in r
aw b
iom
ass
g
gluc
an h
ydro
lyze
d
.
100
g gl
ucan
in r
aw b
iom
ass
Enzymatic Hydrolysis15 FPU/g glucan in raw biomass
continued
65°C
0
5
10
15
20
25
30
35
40
45
0 1 2 3 4 5
Pretreatment time, weeks
Yie
ld
Oxidative Non-oxidative
g
gluc
an h
ydro
lyze
d
.
100
g gl
ucan
in r
aw b
iom
ass