TITLE: Zeitliche Aenderungen der Aktivitaet und der Selektivitaet bei der Umsetzung CO-reicher Synthesegase an einem Eisen/H-ZSM-5-Kombinationskatalysator. (Time changes of activity and selectivity in the conversion of synthetic gases rich in CO on a combined iron/H-ZSM 5 catalyst)

AUTHOR: H.L. Niederberger.

INST.AUTHOR: Karlsruhe Univ.(Germany, F.R.).Fakultaet fuer Chemieingenieurwesen.

LANGUAGE: German

PUB.  TYPE: Technical Report

PUB.  COUNTRY: Germany Federal Republic

SOURCE: Other [$TFFIZ],  11 May 88,  144p.

NTIS ORDER NO.: TIB/A90-81120INW

ABSTRACT:

The conversion of synthetic gas rich in CO on a combined Fe-K/H-ZSM-5/Al sub 2 O sub 3 catalyst into hydrocarbon mixtures containing aromatics was carried out in a laboratory solid bed reactor. Conclusions on the course of the reaction and favourable experimental conditions were drawn from the activity and selectivity of the catalyst, depending on the running time and different reaction parameters (temperature 275-300 deg C, pressure 1.25-5.00 MPa, spatial speed 1000-14000/hour, H sub 2 /CO mol ratio 0.5-1.2). The combination of the catalyst components for the product distribution was studied. The analysis of the organic product proportion was done by gas chromatography with a thin film quartz capillary column and a flame ionisation detector. To clear up the course of the reaction of the synthetic gas conversion at the combined catalyst Fe-K/H-ZSM-5/Al sub 2 O sub 3 as a function of the running time, the product composition along the heap of catalyst was examined at 325 deg C, 5.0 MPa and an H sub 2 /CO  ratio of 0.66. (orig./RB). (Copyright (c) 1990 by FIZ. Citation no. 90:081120.)