Download - Pinola Kraft Soap Technology
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Technology overview
The Pinola technology platform provides kraft pulp mills with a seamless solution encompasing weak black liquor from the digester through to high quality crude tall oil production.
Efficient separation of soap and suspended solids from black liquor, producing a clean black liquor and a concentrated tall oil soap.
Produces high quality crude tall oil (CTO) with the highest yield.
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Technology overview
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Technology overview
UNIT 21 Acidulation &
Separation
UNIT 22: CTO Drying &
Cooling
UNIT 23: Gas Scrubbing
UNIT 24: Acid Water
Neutralization
UNIT 25: Cleaning in
Place
UNIT 11: Clarification
UNIT 12: Purification
UNIT 12: Purification
BLiSS
BLiSS Light
TOPP
UNIT 26: Conditioning
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Technology overview
Solids accumulated at bottom of the tank
Black liquor 4-10 g TO/kg DS
Black liquor feed 20-25% DS15-40g TO/kg DS0,06% solids
Soap skimmed from top of the tank with entrained black liquor
Existing tank soap separation system
Soap
Soap skimming tanks
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Technology overview
Concentrated sulphate soap(≥ 60% TO)
Clarified black liquor: < 1g TO/kg BL DS
SolidsBlack liquor feed20-25% DS15-40g TO/kg DS0,06% solids
New BLiSS system
High Speed Centrifugal Separator
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Scaleable Technology
Soap
Clarified Black liquor < 1g TO/kg DS
Black Liquor feed 20-25% DS15-40g TO/kg DS0,06% solids
BLiSS system
Soap buffer tank
To solids tank or heavy black liquor stream
Suspended Solids
Black liquor return
85 m3/hr.
85 m3/hr.
85 m3/hr.
Concentrated soap (≥ 60% TO)
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Technology overview
Black liquor 4-10 g TO/kg DS
Black liquor feed 20-25% DS15-40g TO/kg DS0,06% solids
Solids
Black liquor150-400g TO/kg DS
BLiSS Light systemConcentrated soap (≥ 60% TO)
Soap skimming tanks
Black liquor return
X m3/h
Black liquor flowX/10 m3/h
To evaporators
To recovery boiler
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Technology field trials
Test No.
Flow m3/hr
BL DS (%)
g TO / kg BL DS
g TO /kg soap
Feed before BLiSSBlack liquor 22.5 13.8 -
Results after BLiSS1 Black liquor 1.5 - 0.9 -1 Soap 1.5 - - 6422 Black liquor 2.5 - 0.9 -2 Soap 2.5 - - 603
Field trials conducted at Billerud Gruvön mill, Sweden October 2009: 3m3/hr black liquor
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Technology field trials
Field trials conducted at Billerud Gruvön mill, Sweden April & May 2011: Average black liquor flow c:a 70m3/hr
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Technology field trials
Concentrated soap (diluted with water)
Cleaner black liquor
Removed suspendedsolids
3 Phase Separation
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Technology field trials
Key Field Trial Results (extract from report)
Sample ID
Date Time Sample Location Black liquor flow rate (m3/h)
g TO / kg BL DS
1 2011-04-15 Feed 72 7,7
2 2011-04-15 After separator 72 0,7
5 2011-05-02 19:10 Feed 62 5,48
6 2011-05-02 21:10 After separator 68 1,71
B 2011-05-03 21:30 Feed 5,51
A 2011-05-03 21:30 After separator 1,51
C 2011-05-04 07:15 Feed 9,39
D 2011-05-04 07:15 After separator 1,99
E 2011-05-04 13:50 After separator 75 1,20
F 2011-05-04 15:00 Feed 73 8,39
G 2011-05-04 15:05 After separator 73 1,29
0,7 g TO / kg DS < Black Liquor < 1,99 g TO / kg DS(i.e. c.a: 70 - 90% reduction of g TO/ kg BL DS)
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Technology field trials
Tankseparated
soap”BLiSSed”
soap
250ml to 230ml in ~1hr
250ml to 200ml in ~1hr
Acidulated soap separation efficiency
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Key process metrics
(1) Source: Värmeforsk (Swedish Thermal Engineering Research Institute) report 1078 Nov. 2008, tabel 4.1.
TANK SYSTEM PINOLA BLiSS
RESIDENCETIME
Days.Scandinavian mills vary from 14 to 31 days. (1)
Minutes.Residence time < 2mins. (2)
BLACKLIQUOR
”Dirty”. Poor separation.Average, 4.2 g TO / kg BL DS.(3)
Clean (”BLiSSed” Black Liquor)Excellent separation. < 1 g TO / kg BL DS. (2)
TALL OILSOAP QUALITY
”Aged” due to long residencetime. Entrained black liquor.
Fresh (”BLiSSed” Soap) due to shortresidence time.
TALL OILCONC.’N
45 – 55% w/w. (4)
Average 51%, Scandinavian mills.≥ 60% w/w. (2)
(4) Source: Värmeforsk (Swedish Thermal Engineering Research Institute) report 1078 Nov. 2008 Attachment B & C.
(2) Source: Field trials May 2011, Billerud, Gruvön, Sweden.
(3) Source: Värmeforsk (Swedish Thermal Engineering Research Institute) report 1078 Nov. 2008, Fig 3.6
SEPARATIONEFFICIENCY
Poor. Gravity decantation. Excellant. Centrifugal force. 1g vs > 4000g
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Key process metrics
(5) Source: Värmeforsk (Swedish Thermal Engineering Research Institute) 1078 Nov 2008, Executive summary.
TANK SYSTEM PINOLA BLiSS
TALL OILYIELD
Estimated 30 000 MT or > 10% of existing Swedish production is lost. (5)
≥ 10% higher yield of TO from black liquor to the tall oilproduction plant. (2) >30 000 MT can be recovered.
SUSPENDEDSOLIDS
Builds up in tanks.In black liquor to the evaporatorIn soap to the splitting plant.
Majority removed in a separate stream.
EVAPORATIONUNIT
Fouling. Increase energy usage. Downtime.
Reduced fouling.Reduced steam consumption.
RECOVERYBOILER
High loading from residues, soap. Reduced loading.Stable operation.Better heat transfer.
(2) Source: Field trials May 2011, Billerud, Gruvön, Sweden.
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Summary of Benefits
1. Reduced scaling of evaporators=> Increased availability=> Reduced steam (energy) consumption=> Increased pulp production capacity
2. Improved capacity of recovery boiler=> Increased pulp production capacity
3. Reduced build up on recovery boiler tubes=> Increased energy efficiency
4. More soap captured=> Increased CTO production
5. Less black liquor in soap => Reduced chemical usage in CTO production
6. Easier separation of acidulated soap products => Increased CTO production yield.
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Technology overview
UNIT 21a: Acidulation
UNIT 22a: CTO Drying
UNIT 23: Gas Scrubber
UNIT 24: Acid Water Neutralising
UNIT 25:CIP (Cleaning
in Place)
UNIT 21b: Separation
UNIT 22b: CTO Cooling
UNIT 26: Conditioning
TOPPTall Oil Production Plant
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Technology overview
TOPPTall Oil Production Plant
The Pinola TOPP solution is a modernisation of the Alfa Laval Celleco tall oil plant which utilises a high speed centrifugal separator.
Unit 26 Unit 21a Unit 21b
Unit 22aUnit 23 & 24Unit 25 Unit 22b
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TOPPTall Oil Production Plant Benefits & Performance guarentees
The performance guarantees achieved bythe Pinola TOPP solution:
1. CTO recovery yield > 97%
2. Water content < 1 %
3. Ash content < 0,2%
4. Max. Temp 70 deg C
5. H2S gas to atmosphere < 20ppm
6. Highest possible acid number. No acid number degradation due to the short residence time.
The technology improvements offered bythe Pinola TOPP solution include:
1. Higher CTO yield
2. Higher CTO quality.
3. Reduced acid consumption
4. Improved pH control
5. Continuous & fully automated
6. Cleaning In Place system
7. Closed system. No H2S gas leakage.
8. Lower installed power
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TOPPTall Oil Production Plant Reference plant
Södra Cell mill Värö Sweden, capacity 5MT CTO / hr. Commissioned April 2012.
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TOPPTall Oil Production Plant Reference plant
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TOPPTall Oil Production Plant Reference plant
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TOPPTall Oil Production Plant Reference plant
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Optimum solution
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Combined economical benefits
Increase in revenue due to increase in crude tall oil production.
The Pinola technology guarentees:1. Increased TO concentration in soap by 10% w/w.2. Increased CTO recovery by 12% w/w (from 85% (1) to 97%).
Tank system PINOLA ( BLiSS + TOPP)Soap recovered from black liquor (kg) 100 100Tall oil concentration in soap 50% 60%Tall oil available (kg) 50 60CTO recovered from soap 85% (1) 97%CTO (kg) 42,5 58,2
Total increase in CTO production 36,9%
Other potential cost savings:1. Steam (energy) costs at evaporator unit and recovery boiler.2. Maintenance costs at evaporators.3. Maintenance costs at recovery boiler.4. Chemical costs.
Other potential revenue increase:1. Increased pulp production capacity.
(1) Average in Scandinavia: Source Värmeforsk (Thermal Engineering Research Institure) report 1078 Nov. 2008
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TOPPTall Oil Production Plant
o Adhesiveso Bio-energyo Bio-lubricantso Coatingso Consumer Products
• Air Fresheners -Automotive
• Air Fresheners - Home and Industrial
o Personal Care• Make-Up• Skin Care• Sun Care
Crude Tall Oil end products
o Detergent Cleanerso Fuel Additiveso Mining/oil field
additiveso Polymer Additiveso Printing inkso Road markingo Road Constructiono Tires and Rubber
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Contributing to a sustainable future !
Sal PassanisiBusiness DevelopmentP: +46 8 50 57 11 25M: +46 703 573 800E: [email protected]