Abstract
A comprehensive R and D programme was launched shortly after the Danish political requirement to burn large amounts of biofuel was made known. This work has now been going on for more than 5 years and a variety of projects related to the conversion of biofuels has been completed. Within the ELSAM area two plants have been commissioned during the last two years for combustion of straw and wood chips; a separate bioboiler as addition to a coal-fired plant and a plant for straw and coal cofiring. Separate bioboilers have turned out to constitute a very versatile technology for implementation of biofuel in a fossil fuel-dominated utility structure, although there are pros and cons. Based on its first year of operation it is concluded that cofiring is sustainable for at least 10% straw share on energy basis, and it has been decided to continue the programme with the long-term 20% straw tests. As is well-known there is one major obstacle to utilising straw: the increased corrosion rate. To overcome this problems two concepts are being investigated: pyrolysis/coke washing and processing corrosion-free based fuels. Straw pyrolysis at power plant scale is still at the infant stage and will require considerable efforts
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Ravn Schmidt, E
[1]
- Elsamprojekt A/S, Fredericia (Denmark)
Citation Formats
Ravn Schmidt, E.
Development in feedstock preparation and quality - country report from Denmark.
Sweden: N. p.,
1998.
Web.
Ravn Schmidt, E.
Development in feedstock preparation and quality - country report from Denmark.
Sweden.
Ravn Schmidt, E.
1998.
"Development in feedstock preparation and quality - country report from Denmark."
Sweden.
@misc{etde_646194,
title = {Development in feedstock preparation and quality - country report from Denmark}
author = {Ravn Schmidt, E}
abstractNote = {A comprehensive R and D programme was launched shortly after the Danish political requirement to burn large amounts of biofuel was made known. This work has now been going on for more than 5 years and a variety of projects related to the conversion of biofuels has been completed. Within the ELSAM area two plants have been commissioned during the last two years for combustion of straw and wood chips; a separate bioboiler as addition to a coal-fired plant and a plant for straw and coal cofiring. Separate bioboilers have turned out to constitute a very versatile technology for implementation of biofuel in a fossil fuel-dominated utility structure, although there are pros and cons. Based on its first year of operation it is concluded that cofiring is sustainable for at least 10% straw share on energy basis, and it has been decided to continue the programme with the long-term 20% straw tests. As is well-known there is one major obstacle to utilising straw: the increased corrosion rate. To overcome this problems two concepts are being investigated: pyrolysis/coke washing and processing corrosion-free based fuels. Straw pyrolysis at power plant scale is still at the infant stage and will require considerable efforts before being mature; another possibility could be to wash the straw prior to firing. The first phase of the latter is concluded, and the second phase is at the planning stage, the aim is among others to set up a demo-plant. With a view to resources there is many advantages in being able to predict the size of area to harvest and bale. A straw prognosis method has been developed capable of producing reliable results. Other points for consideration are handling and storage. Four favourable strategies have been set up taking economic and technical aspects into consideration. Another source of biofuel is sewage sludge and it has been found that it is possible to utilize it for energy production. Further research is ongoing}
place = {Sweden}
year = {1998}
month = {Jun}
}
title = {Development in feedstock preparation and quality - country report from Denmark}
author = {Ravn Schmidt, E}
abstractNote = {A comprehensive R and D programme was launched shortly after the Danish political requirement to burn large amounts of biofuel was made known. This work has now been going on for more than 5 years and a variety of projects related to the conversion of biofuels has been completed. Within the ELSAM area two plants have been commissioned during the last two years for combustion of straw and wood chips; a separate bioboiler as addition to a coal-fired plant and a plant for straw and coal cofiring. Separate bioboilers have turned out to constitute a very versatile technology for implementation of biofuel in a fossil fuel-dominated utility structure, although there are pros and cons. Based on its first year of operation it is concluded that cofiring is sustainable for at least 10% straw share on energy basis, and it has been decided to continue the programme with the long-term 20% straw tests. As is well-known there is one major obstacle to utilising straw: the increased corrosion rate. To overcome this problems two concepts are being investigated: pyrolysis/coke washing and processing corrosion-free based fuels. Straw pyrolysis at power plant scale is still at the infant stage and will require considerable efforts before being mature; another possibility could be to wash the straw prior to firing. The first phase of the latter is concluded, and the second phase is at the planning stage, the aim is among others to set up a demo-plant. With a view to resources there is many advantages in being able to predict the size of area to harvest and bale. A straw prognosis method has been developed capable of producing reliable results. Other points for consideration are handling and storage. Four favourable strategies have been set up taking economic and technical aspects into consideration. Another source of biofuel is sewage sludge and it has been found that it is possible to utilize it for energy production. Further research is ongoing}
place = {Sweden}
year = {1998}
month = {Jun}
}