摘要：Petroleum coke can be divided into delayed coke and fluid coke according to their coking processes. These two kinds of petroleum coke, although with similar elemental compositions, normally have significant differences in their physicochemical structures. In this study, the carbon microcrystal structures of these two petroleum cokes were first characterized using X-ray diffraction and Raman analysis. The results showed that the carbon structure of fluid coke was more ordered and its degree of graphitization was higher. Gasification of these two petroleum cokes in a thermogravimetric analyzer proved that the difference of their reactivity was consistent with the changing trend of their carbon structures. Moreover, the Fourier transform infrared spectroscopy (FTIR) characterization was carried out and justified that the large removal of O-containing chemical bonds in fluid coke was another major reason for its low reactivity. On this basis, blast furnace (BF) slag was used to catalyze the gasification reaction of these two petroleum cokes. The results showed that BF slag had significant catalytic effects on the gasification of petroleum coke. Via the FTIR characterization of samples with different conversion ratios, we found that the BF slag could destroy the C=C aromatic structure in petroleum coke and meanwhile promote the formation of active C(O) compounds on the surface of delayed/fluid coke, in return, increasing the gasification rate.

关键字：PETROLEUM COKE CO2 GASIFICATION PHYSICOCHEMICAL STRUCTURE STEAM GASIFICATION FTIR SPECTROSCOPY CHAR STRUCTURE COAL CHAR PYROLYSIS REACTIVITY CARBON

ISSN号：0887-0624

卷、期、页：卷: 33 期: 7 页: 6734-6741

发表日期：2019-07-01

影响因子：3.091000

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,SCIE（科学引文索引网络版）

发表期刊名称：Energy and Fuels

参与作者：刘银东,钟怡玮

通讯作者：令狐嵘旋

第一作者：张玉明,张永民,高金森

论文类型：期刊论文

论文概要：令狐嵘旋,刘银东,张玉明,张永民,高金森,钟怡玮，Characterization of Delayed Coke and Fluid Coke Gasification Using Blast Furnace Slag as a Disposable Catalyst，Energy and Fuels，2019，卷: 33 期: 7 页: 6734-6741

论文题目：Characterization of Delayed Coke and Fluid Coke Gasification Using Blast Furnace Slag as a Disposable Catalyst