The document discusses a method for producing synthesis gas (syngas) from gasification of bagasse. Bagasse is a waste product from sugar production that is abundant in India. Syngas produced from bagasse gasification can be used as an alternative fuel source for power generation and other industrial processes. The method involves pyrolyzing bagasse in a free-fall reactor to produce char, and then gasifying the char in a packed bed reactor to produce syngas, which consists mainly of carbon monoxide and hydrogen. Experimental results show that syngas yield increases with higher temperature and smaller bagasse particle size during pyrolysis.

1. PRESENTED BY : SAURABH UMRAO B.TECH 3’rd YEAR (CHEMICAL ENGINEERING) MNNIT ALLAHABAD Method of Producing Syngas from Gasification of Bagasse

8. PROXIMATE ANALYSIS CONTENTS OF BAGASSE Element Sugarcane leaves (% w/w;dry) Bagasse (% w/w;dry) Fixed carbon 14.9 20.1 Volatile 77.4 75.8 Ash content 7.7 4.2 Higher heating value, MJ /kg 17.43 18.11

9. ULTIMATE ANALYSIS Element Sugarcane leaves (% w/w; dry) Bagasse (% w/w; dry) Carbon 39.8 44.1 Hydrogen 5.5 5.26 Oxygen 46.8 44.4 Nitrogen 0.19 -

13. FREE FALL REACTOR

16. COMPARISON BETWEEN SLOW AND RAPID PYROLYSIS Slow Pyrolysis Char yield (wt % maf) 10 Reactivity in gasification (wt. % loss/min) .7 Rapid Pyrolysis Char yield (wt % maf) 2.4 Reactivity in gasification (wt. % loss/min ) 3.4

22. EFFECT OF TEMPERATURE ON THE YIELD OF PRODUCTS OBTAINED BY RAPID PYROYSIS OF BAGASSE IN A FREE FALL REACTOR Particle Size,mm 0.5-0.86 0.86-1.0 Temperature, Deg. cent. 800 900 1000 800 900 1000 Gas yield , wt % maf 81.5 83.8 87.5 79.1 81.2 87.0 Tar yield, wt % maf 0.5 0.5 0.3 0.4 0.3 0.2 Char yield, wt % maf 5.0 4.7 4.1 6.6 5.5 4.7 Final slow pyrolysis Char yield after total pyrolysis, wt % maf 2.6 3.3 2.6 2.8 2.4 2.3 Char removed by slow pyrolysis, wt % maf 49 30 37 57 56 51 Reactivity,wt loss% min 1.8 1.5 1.8 3.1 3.4 3.0

24. EXPERIMENTAL SET-UP FOR THE PACKED BED REACTOR

26. TEMPERATURE PROFILE AT DIFFERENT LOCATIONS (FROM BOTTOM OF THE REACTOR) IN A PACKED BED AT A FLUX OF 0.06 KG/m2.S

27. TEMPERATURE PROFILE PREDICTION ALONG THE LENGTH OF THE REACTOR AT A FLUX OF 0.1 KG/m2.S

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