effect of extracted compositions of liquefaction residue on the structure and properties of the formed-coke
发布时间：2024-08-09
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- 所属单位：
- 化学与化工学院
- 发表刊物：
- MATEC Web of Conferences(EI)
- 关键字：
- 中文关键字：无，英文关键字：liquefaction residue; the formed-coke;Soxhlet extr
- 摘要：
- The purpose of this paper is to study the effect of extracted compositions of the de-ash liquefaction residue (D-DCLR) on pyrolysis products yields, compressive strength and composition of the formed-coke, which was prepared by co-pyrolysis of the low metamorphic pulverized coal and D-DCLR. The scanning electron microscope (SEM) and the Fourier Transform Infrared (FT-IR) were used to characterize the morphology and functional group of the formed-coke, respectively. The results showed that the extracted compositions of D-DCLR were heavy oil (HS), asphaltene (A), pre-asphaltene (PA) and tetrahydrofuran isolusion (THFIS), whose contents were 5.10%, 40.90%, 14.4%, 39.60%, respectively. During the pyrolysis process, HS was the main source of tar, and HS, A as well as PA were conducive to improve gas yields. The THFIS helped to improve the yield of the formed-coke up to 89.5%, corresponding to the compressive strength was only 147.7N/ball for the coke. A and PA were the key factors affecting the compressive strength and surface structure of the formed-coke. The compressive strength of coke could be up to 728.0N/ball with adding D-DCLR, which reduced by 50% after the removal of A and PA. The FT-IR analysis showed that the types of surface functional groups of the formed-coke were remained the same after co-pyrolysis, but the absorption peak intensity of each functional group was changed.
- 备注：
- 宋永辉
- 合写作者：
- MaQiao-Na,HeWen-Jin
- 第一作者：
- 宋永辉
- 论文类型：
- 期刊论文
- 卷号：
- 卷：
- 期号：
- 期：67
- 页面范围：
- 页：
- 是否译文：
- 否
- 发表时间：
- 2016-07-01