科研之友
微信
新浪微博
Facebook
分享链接
摘要
The high rate of char gasification observed when using a Brazilian manganese ore as compared to ilmenite is investigated in a batch fluidized-bed reactor. Experiments were carried out at 970 degrees C using petroleum coke, coal and wood char as fuel with a 50% H2O in N-2 as fluidizing gas. A manufactured manganese oxygen carrier was also used, however, which presented a slower char conversion rate than the manganese ore. It is concluded that decrease in H-2 inhibition and oxygen release are unlikely to be the main responsible mechanisms for the ore%26apos;s unexpected gasification rate. The ore was also mixed in different ratios with ilmenite and it was observed that the presence of even small amounts of ore in the bed resulted in increased gasification rate. Thus, the high-gasification rate for the manganese ore could be due to a contribution from the impurities in the ore by catalyzing the gasification reaction.
- 出版日期2013-11
