Anwendungspotential von Membranprozessen im Konzept Lignocelluloser-Bioraffinerien
Lipnizki, Frank LU
; Thuvander, Johan
LU
; Rudolph, Gregor
LU
and Battestini Vives, Mariona
LU
(2021)
Deutsche Gesellschaft für Membrantechnik Jahrestagung 2021: Membranen zum Schutz · von Klima und Ressourcen, 2021
- Abstract
- The pulp and paper industry is one of the most important industries in the world. The current pulp mills focus on the production of pulp fiber and electricity. By converting traditional pulp mills into lignocellulosic biorefineries, they can become a cornerstone of a future circular bioeconomy. To achieve this, pulp mills need to close their cycles and focus on making the most of the lignocellulosic feedstock not only for fiber, but also for the production of biochemicals, biofuels and other advanced materials. In this lecture three case studies of membrane applications in lignocellulosic biorefineries are presented which can optimize the use of the raw material wood.
The first case study deals with the optimized use of lignin in... (More) - The pulp and paper industry is one of the most important industries in the world. The current pulp mills focus on the production of pulp fiber and electricity. By converting traditional pulp mills into lignocellulosic biorefineries, they can become a cornerstone of a future circular bioeconomy. To achieve this, pulp mills need to close their cycles and focus on making the most of the lignocellulosic feedstock not only for fiber, but also for the production of biochemicals, biofuels and other advanced materials. In this lecture three case studies of membrane applications in lignocellulosic biorefineries are presented which can optimize the use of the raw material wood.
The first case study deals with the optimized use of lignin in sulphate pulp production. In the classic process, lignin is incinerated when recycling cooking chemicals and used to generate heat and electricity. Alternatively, lignin can be extracted from the black liquor and used as biofuels in the form of bio oil. UF and nanofiltration (NF) can intensify the sulphate pulp production process by enabling improved lignin recovery combined with the recycling of water and cooking chemicals.
The second case study deals with the improved use of lignin in sulphate pulp production. In the classic process, lignin is burned when recycling cooking chemicals and used to generate heat and electricity. Alternatively, lignin can be extracted from the black liquor and used as biofuels in the form of bio-oil. The production process of sulphate pulp can be intensified with the help of ultrafiltration and nanofiltration by combining lignin extraction with the recycling of water and cooking chemicals.
The final case study shows how lignin and hemicellose can be produced from process wastewater from thermo-mechanical pulp production. This process wastewater, which contains various lignocellulose components such as cellulose, lignin, hemicellulose and extracts, is currently being sent for biological wastewater treatment. Efficient separation and concentration of these wood chemicals could be essential for the use of process wastewater in future lignocellulosic biorefineries. With the use of the membrane processes microfiltration (MF) and ultrafiltration (UF) it is not only possible to separate hemicellulose from lignin and extracts but also to concentrate the hemicellulose at the same time.
In addition to the results of the two case studies, results from fouling and cleaning studies to improve the performance of membrane processes for lignocellulose applications are shown and an outlook on further membrane applications in lignocellulose biorefineries is given.
(Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/b893b6b4-d4a2-4c24-861a-a67427c48695
- author
- Lipnizki, Frank
LU
; Thuvander, Johan
LU
; Rudolph, Gregor
LU
and Battestini Vives, Mariona
LU
- organization
- alternative title
- Application potential of membrane processes in the concept of lignocellulose biorefineries
- publishing date
- 2021-03-23
- type
- Contribution to conference
- publication status
- unpublished
- subject
- keywords
- Membrane processes, Biorefineries
- conference name
- Deutsche Gesellschaft für Membrantechnik Jahrestagung 2021: Membranen zum Schutz · von Klima und Ressourcen, 2021
- conference location
- Germany
- conference dates
- 2021-03-23 - 2021-03-24
- project
- IETS Annex XVII - Membranes in Biorefineries
- language
- German
- LU publication?
- yes
- id
- b893b6b4-d4a2-4c24-861a-a67427c48695
- date added to LUP
- 2024-01-07 07:32:06
- date last changed
- 2024-01-16 11:04:42
@misc{b893b6b4-d4a2-4c24-861a-a67427c48695,
abstract = {{The pulp and paper industry is one of the most important industries in the world. The current pulp mills focus on the production of pulp fiber and electricity. By converting traditional pulp mills into lignocellulosic biorefineries, they can become a cornerstone of a future circular bioeconomy. To achieve this, pulp mills need to close their cycles and focus on making the most of the lignocellulosic feedstock not only for fiber, but also for the production of biochemicals, biofuels and other advanced materials. In this lecture three case studies of membrane applications in lignocellulosic biorefineries are presented which can optimize the use of the raw material wood.<br/>The first case study deals with the optimized use of lignin in sulphate pulp production. In the classic process, lignin is incinerated when recycling cooking chemicals and used to generate heat and electricity. Alternatively, lignin can be extracted from the black liquor and used as biofuels in the form of bio oil. UF and nanofiltration (NF) can intensify the sulphate pulp production process by enabling improved lignin recovery combined with the recycling of water and cooking chemicals.<br/>The second case study deals with the improved use of lignin in sulphate pulp production. In the classic process, lignin is burned when recycling cooking chemicals and used to generate heat and electricity. Alternatively, lignin can be extracted from the black liquor and used as biofuels in the form of bio-oil. The production process of sulphate pulp can be intensified with the help of ultrafiltration and nanofiltration by combining lignin extraction with the recycling of water and cooking chemicals.<br/>The final case study shows how lignin and hemicellose can be produced from process wastewater from thermo-mechanical pulp production. This process wastewater, which contains various lignocellulose components such as cellulose, lignin, hemicellulose and extracts, is currently being sent for biological wastewater treatment. Efficient separation and concentration of these wood chemicals could be essential for the use of process wastewater in future lignocellulosic biorefineries. With the use of the membrane processes microfiltration (MF) and ultrafiltration (UF) it is not only possible to separate hemicellulose from lignin and extracts but also to concentrate the hemicellulose at the same time.<br/>In addition to the results of the two case studies, results from fouling and cleaning studies to improve the performance of membrane processes for lignocellulose applications are shown and an outlook on further membrane applications in lignocellulose biorefineries is given.<br/>}},
author = {{Lipnizki, Frank and Thuvander, Johan and Rudolph, Gregor and Battestini Vives, Mariona}},
keywords = {{Membrane processes; Biorefineries}},
language = {{ger}},
month = {{03}},
title = {{Anwendungspotential von Membranprozessen im Konzept Lignocelluloser-Bioraffinerien}},
year = {{2021}},
}