ON THE MECHANISM OF COKE FORMATION IN STEAM CRACKING - CONCLUSIONS FROM RESULTS OBTAINED BY TRACER EXPERIMENTS

被引：86

作者：

KOPINKE, FD

ZIMMERMANN, G

NOWAK, S

机构：

[1] Acad of Sciences of the GDR, Leipzig, East Ger, Acad of Sciences of the GDR, Leipzig, East Ger

来源：

CARBON | 1988年 / 26卷 / 02期

关键词：

HYDROCARBONS; -; Pyrolysis; SURFACES;

D O I：

10.1016/0008-6223(88)90027-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Coke formation from 68 **1**4C-labeled hydrocarbons used in small amounts as a constituents of a straight-run naphtha was investigated at 810 degree C. Although in line with the literature the coking rates on Cr-Ni steel are higher than one quartz or platinum. No significant differences could be found in the selectivity of coke formation on surfaces of different materials. This observation indicates that surface properties control only the number and not the nature of active centers responsible for coke formation from gas phase hydrocarbon species.

引用

页码：117 / 124

页数：8

共 42 条

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Albright L. F., 1983, PYROLYSIS THEORY IND

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