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Catalytic activity of Cu-ZSM-5 and HZSM-5 zeolite for single step conversion of methane to liquid hydrocarbon

The economical conversion of methane(CH4), the principal component of natural gas, to liquid fuels, particularly gasoline (C5-H10) is one of the main challenges in the gas to liquids (GTL) technology. The existing technology based on Fischer-Tropsch synthesis is adapted by SASOL in South Africa and...

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Main Authors: Saidina Amin, Nor Aishah, Anggoro, Didi Dwi, Zakaria, Zaki Yamani, Prasetyoko, Didik, Tan, Eng Fong, Law, Kian Meng, Esam, Azwan
Format: Article
Language:English
Published: Faculty of Chemical and Natural Resources Engineering, UTM 2001
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/4944/1/NorAishahSaidinaAmin2001_CatalyticActivityOfCu-ZSM-5AndHZSM-5.pdf
http://eprints.utm.my/id/eprint/4944/
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spelling my.utm.49442010-06-01T03:22:08Z http://eprints.utm.my/id/eprint/4944/ Catalytic activity of Cu-ZSM-5 and HZSM-5 zeolite for single step conversion of methane to liquid hydrocarbon Saidina Amin, Nor Aishah Anggoro, Didi Dwi Zakaria, Zaki Yamani Prasetyoko, Didik Tan, Eng Fong Law, Kian Meng Esam, Azwan T Technology (General) The economical conversion of methane(CH4), the principal component of natural gas, to liquid fuels, particularly gasoline (C5-H10) is one of the main challenges in the gas to liquids (GTL) technology. The existing technology based on Fischer-Tropsch synthesis is adapted by SASOL in South Africa and SMDS in Malaysia.However, the process is energy intensified and costly. The research for the catalyst that is highly active to convert methane to higher hydrocarbons directly has mainly focused on microporous material such as the ZSM-5. The HZSM-5 and Cu-ZSM-5 zeolites were synthesized by hydrothermal crystallization at 170C for seven days from mixtures containing sodium silicate, aluminium sulfate and tetrapropylammonium bromide (copper nitrate is added for the synthesis of Cu-ZSM-5). The catalysts were characterized using X-Ray Diffraction (XRD),Temperature-Programmed Desorption (TPD) and Nitrogen Adsorption. Methane with 99.9% purity was reacted with compressed air at atmospheric pressure and temperature, T=800C. The performance of synthesized HZSM-5 and and Cu-ZSM-5 was testes in a fixed-bed micro reactor at Weight Hour Space Velocity (WHSV) of 10440 ml.g(-1).hr(-1) with CH4/O2 ratio=10:1. The percentage of SiO2 and Al2O3 in the zeolite gel affected the surface area, micropore area, pore size and micropore volume as well as the acidity of zeolite samples. While the conversion of methane decreased as a result of loading the Cu ions, the selectivities in the gasoline range hydrocarbons exhibit a considerable improvement over catalyst with moderate to high acidity range. For a catalyst with a weak acidity, loading metal ions into the frame work may retard the formation of C5-10 hydrocarbons. Faculty of Chemical and Natural Resources Engineering, UTM 2001 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/4944/1/NorAishahSaidinaAmin2001_CatalyticActivityOfCu-ZSM-5AndHZSM-5.pdf Saidina Amin, Nor Aishah and Anggoro, Didi Dwi and Zakaria, Zaki Yamani and Prasetyoko, Didik and Tan, Eng Fong and Law, Kian Meng and Esam, Azwan (2001) Catalytic activity of Cu-ZSM-5 and HZSM-5 zeolite for single step conversion of methane to liquid hydrocarbon. Proceedings of The 15th Symposium of Malaysian Chemical Engineers SOMChE 2001 . pp. 46-52.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Saidina Amin, Nor Aishah
Anggoro, Didi Dwi
Zakaria, Zaki Yamani
Prasetyoko, Didik
Tan, Eng Fong
Law, Kian Meng
Esam, Azwan
Catalytic activity of Cu-ZSM-5 and HZSM-5 zeolite for single step conversion of methane to liquid hydrocarbon
description The economical conversion of methane(CH4), the principal component of natural gas, to liquid fuels, particularly gasoline (C5-H10) is one of the main challenges in the gas to liquids (GTL) technology. The existing technology based on Fischer-Tropsch synthesis is adapted by SASOL in South Africa and SMDS in Malaysia.However, the process is energy intensified and costly. The research for the catalyst that is highly active to convert methane to higher hydrocarbons directly has mainly focused on microporous material such as the ZSM-5. The HZSM-5 and Cu-ZSM-5 zeolites were synthesized by hydrothermal crystallization at 170C for seven days from mixtures containing sodium silicate, aluminium sulfate and tetrapropylammonium bromide (copper nitrate is added for the synthesis of Cu-ZSM-5). The catalysts were characterized using X-Ray Diffraction (XRD),Temperature-Programmed Desorption (TPD) and Nitrogen Adsorption. Methane with 99.9% purity was reacted with compressed air at atmospheric pressure and temperature, T=800C. The performance of synthesized HZSM-5 and and Cu-ZSM-5 was testes in a fixed-bed micro reactor at Weight Hour Space Velocity (WHSV) of 10440 ml.g(-1).hr(-1) with CH4/O2 ratio=10:1. The percentage of SiO2 and Al2O3 in the zeolite gel affected the surface area, micropore area, pore size and micropore volume as well as the acidity of zeolite samples. While the conversion of methane decreased as a result of loading the Cu ions, the selectivities in the gasoline range hydrocarbons exhibit a considerable improvement over catalyst with moderate to high acidity range. For a catalyst with a weak acidity, loading metal ions into the frame work may retard the formation of C5-10 hydrocarbons.
format Article
author Saidina Amin, Nor Aishah
Anggoro, Didi Dwi
Zakaria, Zaki Yamani
Prasetyoko, Didik
Tan, Eng Fong
Law, Kian Meng
Esam, Azwan
author_facet Saidina Amin, Nor Aishah
Anggoro, Didi Dwi
Zakaria, Zaki Yamani
Prasetyoko, Didik
Tan, Eng Fong
Law, Kian Meng
Esam, Azwan
author_sort Saidina Amin, Nor Aishah
title Catalytic activity of Cu-ZSM-5 and HZSM-5 zeolite for single step conversion of methane to liquid hydrocarbon
title_short Catalytic activity of Cu-ZSM-5 and HZSM-5 zeolite for single step conversion of methane to liquid hydrocarbon
title_full Catalytic activity of Cu-ZSM-5 and HZSM-5 zeolite for single step conversion of methane to liquid hydrocarbon
title_fullStr Catalytic activity of Cu-ZSM-5 and HZSM-5 zeolite for single step conversion of methane to liquid hydrocarbon
title_full_unstemmed Catalytic activity of Cu-ZSM-5 and HZSM-5 zeolite for single step conversion of methane to liquid hydrocarbon
title_sort catalytic activity of cu-zsm-5 and hzsm-5 zeolite for single step conversion of methane to liquid hydrocarbon
publisher Faculty of Chemical and Natural Resources Engineering, UTM
publishDate 2001
url http://eprints.utm.my/id/eprint/4944/1/NorAishahSaidinaAmin2001_CatalyticActivityOfCu-ZSM-5AndHZSM-5.pdf
http://eprints.utm.my/id/eprint/4944/
_version_ 1643644191590318080
score 13.211869

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