Creating Options: Flowsheet Development

ACS Omega ◽  
2020 ◽  
Author(s):  
Alok Kumar Nayak ◽  
Binapani Behera ◽  
Kadambini Sarangi ◽  
Malay Kumar Ghosh ◽  
Suddhasatwa Basu

2016 ◽  
Vol 21 ◽  
pp. 524-529 ◽  
Author(s):  
Robin Taylor ◽  
Mike Carrott ◽  
Hitos Galan ◽  
Andreas Geist ◽  
Xavier Hères ◽  
...  

2021 ◽  
Author(s):  
Shehzaad Kauchali

Gasification processes incorporate many reactions that are fairly complex to analyse making their design difficult. In this chapter it is shown that general gasification systems are limited by consideration of mass and energy balances only. Here, a ternary Carbon-Hydrogen-Oxygen diagram is developed to represent gasification processes. The diagram incorporates basic chemistry and thermodynamics to define a region in which gasification occurs. The techniques are further validated from data obtained from pilot or laboratory experiments available in literature. In this chapter we develop graphical representation for sawdust gasification and underground coal gasification (UCG), a clean coal technology. The methods described allow for further analysis without considerations to thermodynamic equilibrium, reactor kinetics, reactor design and operation. This analysis is thus an indispensable tool for flowsheet development using gasification and an excellent tool for practitioners to rapidly understand gasification processes.


10.12737/6549 ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. 147-154
Author(s):  
Турчина ◽  
Tatyana Turchina ◽  
Родин ◽  
Sergey Rodin

Generalization of the experience of practical implementation of the current regulatory framework reforestation suggests that their use in the current version will not contribute to the conservation of plants, increase their productivity and protective role. There are no ways to restore black alder plantations, no standards for planting material and requirements of young animals, the area of which shall be charged to the lands is covered with forest vegetation. We analyzed the impact of agricultural practices, methods of creation, composition and density on survival, growth, productivity of plantations in the experience forest cultures sampling area (13 areas). The results of research were a scientific basis for the development of a regional process flowsheet development of silvicultural areas. In order to clarify and supplement certain provisions of the framework regulations of thinning, we analyzed the results of experimental logging, tasks of which are differentiated. Their effectiveness is determined by the rate of silvicultural stock recovery. In pure stands the optimal conditions for the development of trees at a young age are formed in high density, so thinning is necessary to start from thinnings. Mixed stands are characterized by low redox potential (recovery of the stock occurs only with a decrease the proportion of willow and intensity of cutting up to 20%) and lower total productivity (to 10.3-45.7% with a decrease in the proportion of willow and 45.7% - in its increase). Mode of logging in them should ensure the formation of pure stands. The regional experience of afforestation and the test results of different modes of thinning are the scientific basis for improving the existing “Reforestation regulations” and “Rules of forest tending”, and for the creation of a regional reforestation program.


Author(s):  
M. Oliazadeh ◽  
M. Aghamirian ◽  
S. Ali ◽  
E. Legault ◽  
C. Gibson

2013 ◽  
Vol 49 ◽  
pp. 45-53 ◽  
Author(s):  
Samuel A. Awe ◽  
Jan-Eric Sundkvist ◽  
Nils-Johan Bolin ◽  
Åke Sandström

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