TY - GEN
T1 - A cost-benefit analysis of black liquor gasification combined cycle systems
AU - Katofsky, Ryan
AU - Consonni, Stefano
AU - Larson, Eric D.
PY - 2003
Y1 - 2003
N2 - Black liquor gasification (BLG) technologies are under active commercial development in the United States and Europe. BLG has been proposed as a future replacement for Tomlinson boilers to provide more efficient, safer, and environmentally-friendlier chemical and energy recovery. Also, some pulping process improvements are more readily implemented with BLG than with black liquor combustion. Because of potential efficiency and process benefits, BLG is viewed as an important technology for enhancing the competitiveness of the pulp and paper industry. Much of the focus on BLG development has been on the coupling of chemical recovery with electricity production via gas turbine combined cycle technology (BLGCC). A better understanding of the economics and potential regional and national benefits of BLGCC could help catalyze commercialization of these systems. To that end, this paper summarizes the main results of a detailed study sponsored by the US Department of Energy, the pulp & paper industry and two electric utilities to assess the costs and benefits of BLGCC technology at the mill, Southeast US regional, and US national level. The status of leading black liquor gasification technologies is summarized. Detailed mass and energy balances and capital cost estimates are presented for different BLGCC configurations and compared to state-of-the-art and advanced Tomlinson-based recovery systems. These are used for mill-level financial comparisons and to assess regional and national environmental benefits and energy savings potential.
AB - Black liquor gasification (BLG) technologies are under active commercial development in the United States and Europe. BLG has been proposed as a future replacement for Tomlinson boilers to provide more efficient, safer, and environmentally-friendlier chemical and energy recovery. Also, some pulping process improvements are more readily implemented with BLG than with black liquor combustion. Because of potential efficiency and process benefits, BLG is viewed as an important technology for enhancing the competitiveness of the pulp and paper industry. Much of the focus on BLG development has been on the coupling of chemical recovery with electricity production via gas turbine combined cycle technology (BLGCC). A better understanding of the economics and potential regional and national benefits of BLGCC could help catalyze commercialization of these systems. To that end, this paper summarizes the main results of a detailed study sponsored by the US Department of Energy, the pulp & paper industry and two electric utilities to assess the costs and benefits of BLGCC technology at the mill, Southeast US regional, and US national level. The status of leading black liquor gasification technologies is summarized. Detailed mass and energy balances and capital cost estimates are presented for different BLGCC configurations and compared to state-of-the-art and advanced Tomlinson-based recovery systems. These are used for mill-level financial comparisons and to assess regional and national environmental benefits and energy savings potential.
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M3 - Conference contribution
AN - SCOPUS:22144468046
SN - 1930657307
SN - 9781930657304
T3 - TAPPI Fall Technical Conference
SP - 3099
EP - 4020
BT - 2003 TAPPI Fall Technical Conference
T2 - 2003 TAPPI Fall Technical Conference: Engineering, Pulping and PCE and I
Y2 - 26 October 2003 through 30 October 2003
ER -