Gasification of biodiesel by-product with air or oxygen to make syngas.
In the present study, gasification of biodiesel by-product, crude glycerin, was performed in an entrained flow gasifier. Gasification was conducted in a temperature range of 950-1500 degrees C and excess air ratio of 0.17-0.7 for air or oxygen as a gasification agent. From the results, syngas heating value, carbon conversion and cold gas efficiency of more than 2500 kcal/Nm(3), 92% and 65% were achieved, respectively. The H(2)/CO ratio of the product gas was varied from 1.25 to 0.7 with the excess air ratio and this gas composition was favorable for DME synthesis. The optimum excess air ratio for gasification of biodiesel by-product was evaluated to be an approximately 0.35-0.4. The present results indicate that crude glycerin can be utilized as a feedstock for gasification to make syngas.
Yoon
Sang Jun
SJ
Climate Change Technology Research Division, Korea Institute of Energy Research, 71-2 Jang-dong, Yuseong-gu, Daejeon 305-343, Republic of Korea.
Choi
Young-Chan
YC
Son
Yung-Il
YI
Lee
See-Hoon
SH
Lee
Jae-Goo
JG
D000388:Air; D056804:Biofuels; D002248:Carbon Monoxide / Q000737:chemistry; D005740:Gases / Q000138:chemical synthesis* / Q000737:chemistry; D005990:Glycerol / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry*; D013696:Temperature
D056804:Biofuels; D005740:Gases; D002248:Carbon Monoxide; D006859:Hydrogen; D005990:Glycerol; D010100:Oxygen