Pulp mills gasification

You can be exposed to 2-hexanone if you live near an industry or hazardous waste site that releases the liquid into wastewater or the gas form into the surrounding air. These industries include coal gasification plants, oil shale operations, and wood pulping mills. We have no information on background levels of 2-hexanone in the environment. 

Figure 3A.7 Possibilities of utilizing gasification, pyrolysis, and liquefaction in kraft pulp mill.

Landalv I. Black hquor gasification and conversion of the pulp mill into a biorefinery. In Proc Sem biorfining for the pulp and paper Industry. AAancFiL, Stockholm, Sweden December 10—11,2007. 4 p. 

Naqvi M,Yan J, Frobng M. Bio-refinery system of DME and CH4 production from black bquor gasification in pulp mills. Biores Technol 2010 101 937-44. 

Larson ED, Consonni S, Katofsky RE, lisa K, Frederick Jr WJ. An assessment of gasification-based biorefining at kraft pulp and paper mills in the United States, Part A. Background and assumptions. TappiJ2008 7(ll) 8-14. 

Naqvi M,Yan J, Dahlquist E. Black hquor gasification integrated in pulp and paper mills a critical review. BioresTechnol 2010 101 8001-15. 

This work is part of the smart enterprise division in Tumut Visy Pulp and Paper, and addresses the advanced control and operation of the mill. In this context, a robust dynamic model is developed for the recovery boiler, and validated over a wide range of operating conditions. In the steady state case, energy and mass balances were carried out over the different sections of the process. In the dynamic case, initially, heat and mass transfer across the bed are coupled with moisture evaporation, black liquor pyrolysis, char combustion and gasification, gas-phase. The influence of model parameters kinetic constants and operational variables on process dynamics are studied by numerical simulation. The model was developed/implemented in a Visual C++ environment. 

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