Malaysian Journal of Analytical Sciences Vol 19 No 5 (2015): 1043 - 1055

 

 

 

HYDROGEN GAS PRODUCTION FROM GLYCEROL VIA STEAM REFORMING USING NICKEL LOADED ZEOLITE CATALYST

 

(Penghasilan Gas Hidrogen daripada Gliserol melalui Kaedah Pembaharuan Stim

dengan menggunakan Pemangkin Nikel-Zeolite)

 

Fazureen Azaman¹, Hafizan Juahir¹*, Mahadhir Mohamed², Azman Azid¹, Kamaruzzaman Yunus³,

Anis Farhana Abdul Rahman², Wan Nur Anis Amira Wan Ranizang²,  Fara Aiza Md Sanin²,

Mohammad Azizi Amran¹, Mohd Zaid Arqam Zainal Abidin¹, Norsyuhada Hairoma¹,

Nur Hishaam Sulaiman¹, Ismail Zainal Abidin¹

 

¹East Coast Environmental Research Institute (ESERI),

Universiti Sultan Zainal Abidin, Gong Badak Campus,21300 Kuala Terengganu, Terengganu, Malaysia

²Department of Chemical Engineering, Faculty of Chemical Engineering,

Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia

³Kulliyyah of Science,

International Islamic University Malaysia, 25200 Kuantan, Pahang, Malaysia

 

*Corresponding author: hafizanjuahir@unisza.edu.my

 

 

Received: 14 April 2015; Accepted: 9 July 2015

 

 

Abstract

Glycerol is the main by-product of biodiesel production that produces from transesterification process. In this research, focused was on hydrogen production via glycerol steam reforming using nickel loaded HZSM-5 catalyst. The catalysts were prepared by using different loading amount of nickel (0.5, 1.0, 5.0, 10.0 and 15 wt %) on HZSM-5 catalyst through the wet impregnation method at temperature 500 ºC and atmospheric pressure. The catalyst was characterized by using XRD, FTIR and SEM. Then, only 15 wt % Ni loading has been chosen based on the parameter which is different range of catalyst weight (0.3-0.5g) at different range of glycerol flow rate (0.2-0.4mL/min) at temperature 600 ºC and atmospheric pressure. The products were analyzed by using gas-chromatography with thermal conductivity detector (GC-TCD) where it is used to identify the yield of hydrogen. The data of the experiment were analyzed by using Response Surface Methodology (RSM) in order to study the relationship of catalyst weight and glycerol flow rate. The results showed that the optimum condition to produce a maximum hydrogen yield with 15wt% Ni/HZSM-5 catalyst was 78.10004% at glycerol flow rate of 0.356484 mL/min and catalyst weight of 0.429267 g.

 

Keywords: glycerol, transesterification, biodiesel, HZSM-5, hydrogen

 

Abstrak

Gliserol adalah produk sampingan utama penghasilan biodiesel yang terhasil daripada proses transesterifikasi. Dalam kajian ini, fokus utama adalah kepada penukaran gliserol terhadap gas hidrogen telah menggunakan HZSM-5 yang diubahsuai dengan nikel. Kajian ini dijalankan dengan menggunakan pemangkin 0.5, 1.0, 5.0, 10.0 and 15% nikel/ ZSM-5  pada tekanan atmosfera dan suhu 500 ºC untuk penyediaan pemangkin. XRD, FTIR dan SEM digunakan untuk menganalisis struktur pemangkin. Kemudian, hanya 15 % nikel/ZSM-5 yang digunakan untuk menjalankan eksperimen seterusnya pada perbezaan berat pemangkin (0.3-0.5 g) dan kadar aliran gliserol (0.2-0.4 mL/min) pada tekanan atmosfera dan suhu 600 ºC. Produk ini akan dianalisis dengan menggunakan kromatografi gas (GC-TCD) untuk mengkaji peratus hydrogen terhasil. Keputusan eksperimen menunjukkan 78.10004% penghasilan optimum gas hidrogen oleh 15% Ni/HZSM-5 pada keadaan optimum iaitu pada kadar aliran gliserol = 0.356484 mL/min and berat pemangkin = 0.429267 g.

 

Kata Kunci:  gliserol, transesterifikasi, biodiesel, HZSM-5, hidrogen

 

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