Applications / Filter Press for Chemical Industry
Filter Press for Ligning-Black Liquor Filtration
Filter Press for Ligning-Black Liquor Filtration
Filter presses is the best filtration technology used to filter lignin –black liquor resulting from bioethanol production or also in the lignoboost process. This case study it is focus on the filter press use for the filtration of lignin – black liquor resulting from bioethanol production. On the second generation bioethanol plants the filter press can be used in two different steps of the production depend from the process layout.
Case Study
on using Filter Press for
Lignin-Black
Filter Press
Feed
Details
Feed : Lignin
Conc. : 7-8% (w/w)
Qty. : > 20 DMTPH
Feed T : 65-85 Deg C
Desired Output
Parameters
Filtered Cake Moisture: ≤ 45-55% (w/w)
Process
Engineering
A representative sample of lignin –black liquor is collected & tested in Dewater Filter Press R & D Laboratory in Italy in a lab scale Filter Press.
The first step was to clearly understand the lignin –black liquor slurry chemical & physical characteristics & tests such as elemental analysis, dimensional Particle size analysis, IR Spectroscopic analysis, XRD Crystalline Phase analysis were conducted.
Subsequently multiple filtration tests were conducted on the lignin sample by altering
-
filter press plate configurations,
-
chamber thickness,
-
feeding,
-
squeezing,
-
cake blowing pressures & time
to define the optimum filtration parameters to reach the performance parameters required by the customer.
Result
(Dry Cake)
Filter Press &
its ancillaries sizing
The Filtration test results from the lignin-black-liquor sample provided us the optimum process parameters to make the sizing of the Filter Press & all the associated ancillary equipment.
The Filter Press & the ancillaries are sized considering the results from the filtration test.
Recommended
solution
Membrane plate configuration is selected for this bio ethanol project.
We recommended the customer for 05 Nos. Dewater HP Model Filter Press to reach the total capacity with desired Filter Press performance parameters.
*Our projects are covered under non-disclosure agreement. Hence specific process input-output details can not be shared.
**Please contact us for your specific requirements & we will be happy to assist & support.
Case Study on
using Filter Press for
Lignin-Black Filter Press
Feed Details
Feed : Lignin
Conc. : 7-8% (w/w)
Qty. : > 20 DMTPH
Feed T : 65-85 Deg C
Desired Output Parameters
Filtered Cake Moisture : ≤ 20-25% (w/w). Cake Washing was needed for recovery of soluble zinc.
Process Engineering
A representative zinc sample is collected & tested in Dewater Filter Press R & D Laboratory in Italy in a lab scale Filter Press.
The first step was to clearly understand the slurry zinc, chemical & physical characteristics & tests such as elemental analysis, dimensional Particle size analysis, IR Spectroscopic analysis, XRD Crystalline Phase analysis were conducted.
Subsequently multiple filtration tests were conducted on the Zinc sample by altering
- filter press plate configurations,
- chamber thickness,
- feeding,
- squeezing,
- Cake washing efficiency
- cake blowing pressures & time
To define the optimum filtration parameters to reach the performance parameters required by the customer.
Result (Dry Cake)
Filter Press & its ancillaries sizing
The Filtration test results from the zinc sample provided us the optimum process parameters to make the sizing of the Filter Press & all the associated ancillary equipment.
The Filter Press & the ancillaries are sized considering the results from the filtration test.
Recommended solution
Membrane plate with cake washing configuration was choosen for this zinc purification project
We recommended the customer for 01 No. Dewater HP 15 Model Filter Press to reach the total capacity with desired Filter Press performance parameters.
*Our projects are covered under non-disclosure agreement. Hence specific process input-output details can not be shared.
**Please contact us for your specific requirements & we will be happy to assist & support.