《Table 4 The heavy oil cracking performance of different catalysts》

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《Research on Catalytic Cracking Performance Improvement of Waste FCC Catalyst by Magnesium Modification》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

1) The sample was prepared by acid extraction method reported by Wu，et al.[13].

The heavy oil catalytic cracking performance of different catalysts is given in Table 4.It can be clearly seen that the catalytic cracking performance of R-Cat was obviously improved.Compared with S-Cat，the gasoline yield over R-Cat significantly increased by 3.04percentage points；meanwhile，the yield of undesired products，such as dry gas，LPG，coke，and bottoms，obviously decreased by 0.36，0.81，1.28，and 0.87percentage points，respectively.The above performance improvement of R-Cat could be attributed to the appropriate surface acidity which was greatly helpful to restricting the coking and over-cracking reactions during FCC reaction[22].Furthermore，for comparison，the regeneration of waste FCC catalyst was also conducted using the traditional acid extraction method.As shown in Table 4，in contrast with R-Cat prepared by our regeneration method，although the conversion over the conventionally regenerated waste FCC catalyst used in the comparison tests increased，the gasoline yield obviously decreased by 5.1 percentage points with a distinct increase of undesired products，such as dry gas，LPG，and coke，indicating to the superior effect of our regeneration method.