CHANGE IN MOLECULAR-STRUCTURE OF FLASH PYROLYSIS TAR BY SECONDARY REACTION IN A FLUIDIZED-BED REACTOR

被引：34

作者：

HAYASHI, J ^{[1
]}

NAKAGAWA, K ^{[1
]}

KUSAKABE, K ^{[1
]}

MOROOKA, S ^{[1
]}

YUMURA, M ^{[1
]}

机构：

[1] NATL CHEM LAB IND,TSUKUBA,IBARAKI 305,JAPAN

来源：

FUEL PROCESSING TECHNOLOGY | 1992年 / 30卷 / 03期

关键词：

D O I：

10.1016/0378-3820(92)90052-R

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effect of the secondary vapor-phase reaction on the molecular structure of flash pyrolysis tar was studied in a fluidized-bed reactor where the temperatures of the dense bed and the freeboard were independently controlled. Although the tar yield and its ratio to the total volatile yield were affected by the temperature of both the bed and the freeboard, the H/C ratio of the tar was determined only by the freeboard temperature. The number-based distribution of -CH2- groups attached to aromatic rings and its change by the dealkylation were each evaluated as a function of temperature for each homologous series having the same aromatic ring structure.

引用

页码：237 / 248

页数：12

共 20 条

[1] PYROLYSIS OF NAPHTHALENIC DERIVATIVES .3. PYROLYSIS OF NAPHTHOLS, HYDRONAPHTHOLS AND PERHYDRONAPHTHOLS [J].