Conversion of Dimethyl Ether to Liquid Hydrocarbons over Zn-Isomorphously Substituted HZSM-5 | Sciact - CRIS-system of Boreskov Institute of Catalysis

Conversion of Dimethyl Ether to Liquid Hydrocarbons over Zn-Isomorphously Substituted HZSM-5 Full article

Journal

Fuel
ISSN: 0016-2361 , E-ISSN: 1873-7153

Output data

Year: 2022, Volume: 320, Article number : 123959, Pages count : 10 DOI: 10.1016/j.fuel.2022.123959

Tags

Zn-HZSM-5, Isomorphous substitution, Dimethyl ether, Conversion, Liquid hydrocarbons, I-alkanes, DME + synga

Authors

Vosmerikova L.N. ¹ , Matieva Z.M. ² , Snatenkova Yu.M. ² , Kolesnichenko N.V. ² , Zaikovskii V.I. ³ , Vosmerikov A.V. ¹

Affiliations

1	Institute of Petroleum Chemistry SB RAS, Akademicheskiy prospect, 4, 634055 Tomsk, Russian Federation
2	Institute of Petrochemical Synthesis A.V. Topchiev RAS, Leninsky prospect, 29, 119991 Moscow, Russian Federation
3	Institute of Catalysis G.K. Boreskov SB RAS, Prospect Akademika Lavrent'ev, 5, Novosibirsk 630090, Russian Federation

Funding (1)

Ministry of Science and Higher Education of the Russian Federation

0295-2021-0004

Zinc-isomorphously substituted HZSM-5 (Zn/HZSM-5(iso)) surpasses Zn/HZSM-5(i.e) sample obtained by ion exchange in its catalytic performance in the conversion of a mixture of DME + syngas (in different compositions) to liquid hydrocarbons. The uniform distribution of highly dispersed zinc species over zeolite crystals provides high selectivity of Zn/HZSM-5(iso) to liquid hydrocarbons (90 wt%). New ZnOH+ active sites of medium strength with mild hydrogenation properties explain the low yield of arenes (4.7 wt%) and the high yield of i-alkanes (72.5 wt%). The absence of methanol in the product stream indicates its dehydration to DME, which is known to have a higher reactivity or its participation in the methylation of alkenes to form methyl-substituted alkanes. A larger mesopores volume in Zn/HZSM-5(iso) promotes a lower degree of coke precursors polycondensation. Therefore, this allows the use of mild oxidative regeneration conditions. The Zn/HZSM-5(iso) catalyst retains its efficient and stable operation for 72 h, with high conversion of DME and high selectivity for liquid hydrocarbons. The resulting hydrocarbon mixture can be used as a base component for environmentally friendly fuels.

Vosmerikova L.N. , Matieva Z.M. , Snatenkova Y.M. , Kolesnichenko N.V. , Zaikovskii V.I. , Vosmerikov A.V.
Conversion of Dimethyl Ether to Liquid Hydrocarbons over Zn-Isomorphously Substituted HZSM-5
Fuel. 2022. V.320. 123959 :1-10. DOI: 10.1016/j.fuel.2022.123959 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Sep 6, 2021
Accepted:	Mar 20, 2022
Published online:	Apr 1, 2022
Published print:	Jul 15, 2022

Web of science:	WOS:000806782500007
Scopus:	2-s2.0-85127335525
Elibrary:	48423409
Chemical Abstracts:	2022:879461
Chemical Abstracts (print):	180:120724
OpenAlex:	W4220915556

DB	Citing
OpenAlex	13
Web of science	13
Scopus	12