2001
DOI: 10.1023/a:1009064627230
|View full text |Cite
|
Sign up to set email alerts
|

Untitled

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

2
19
1

Year Published

2003
2003
2017
2017

Publication Types

Select...
3
3

Relationship

0
6

Authors

Journals

citations
Cited by 9 publications
(22 citation statements)
references
References 6 publications
2
19
1
Order By: Relevance
“…Table 1 demonstrates further the importance of the presence of ZSM-5 zeolite catalysts for the conversion of benzene to methylated products since the blank run without a catalyst yielded only 0.8 % benzene conversion compared with 8-9% conversion obtained when catalysts were included. The major products were again observed to be predominantly toluene together with smaller amounts of ethylbenzene and xylenes as reported earlier for reaction utilising ultrahigh purity methane [6,9,11]. Table 1 also indicates that there is no significant change in the benzene conversions over HZSM-5 and all the metal-exchanged ZSM-5 samples as observed previously [6].…”
Section: Further Evidence For Catalytic Methylation With Methanesupporting
confidence: 80%
See 2 more Smart Citations
“…Table 1 demonstrates further the importance of the presence of ZSM-5 zeolite catalysts for the conversion of benzene to methylated products since the blank run without a catalyst yielded only 0.8 % benzene conversion compared with 8-9% conversion obtained when catalysts were included. The major products were again observed to be predominantly toluene together with smaller amounts of ethylbenzene and xylenes as reported earlier for reaction utilising ultrahigh purity methane [6,9,11]. Table 1 also indicates that there is no significant change in the benzene conversions over HZSM-5 and all the metal-exchanged ZSM-5 samples as observed previously [6].…”
Section: Further Evidence For Catalytic Methylation With Methanesupporting
confidence: 80%
“…The observed higher benzene conversions and higher selectivity to ethylbenzene (or lower selectivity to toluene) than the previous reported figures for UHP methane experiments have been attributed to the presence of higher levels of ethylene and oxygen impurities present in the CP methane used in the present study [11]. Table 1 also shows the result of blank runs with catalysts in which methane was replaced by 6.9 MPa nitrogen or 6.9 MPa hydrogen.…”
Section: Further Evidence For Catalytic Methylation With Methanementioning
confidence: 47%
See 1 more Smart Citation
“…Table 2 shows that pure benzene conversions at 400 °C are very low indicating a negligible contribution from the conversion of benzene alone to the methylation of benzene with methanol and therefore to the methylation of benzene with methane in the presence of oxygen. This observation gives further support to the fact that in the reaction of benzene with methane in the absence of oxygen, the cracking of benzene does not occur over ZSM-5 catalysts to give carbonaceous CH x species which can then react with additional benzene to form methylated products [3,8]. Hence, the conversion of benzene was found to be very negligible (less than 0.3 %).…”
Section: Resultssupporting
confidence: 65%
“…Hence, the conversion of benzene was found to be very negligible (less than 0.3 %). Such cracking of benzene to give methylated products had, however, been previously observed over H-beta catalyst due to its stronger acidity and larger pore size than that of ZSM-5 [3,8,9]. °C.…”
Section: Resultsmentioning
confidence: 92%