Influence of Inherent Alkali Content and Surface Area of Biomass Char on its CO2 Gasification Reactivity
سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 370
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شناسه ملی سند علمی:
JR_IJEE-8-1_001
تاریخ نمایه سازی: 6 شهریور 1396
چکیده مقاله:
In this work, isothermal gasification reactivity of pistachio nut shell (PNS) char and oil palm shell (OPS) char was studied under CO2 using Thermogravimetric analysis (TGA). The effects of temperature, inherent alkali content and surface area of each biomass char on promotion of CO2 gasification reactivity were investigated. The achieved results revealed the profound catalytic effect of alkali, alkaline and transition metals including K, Na and Fe available in the ash of biomass on enhancing the gasification reactivity of the char at temperatures below 900 °C. However, at elevated temperatures the pore diffusion was dominant and controlled the gasification reactivity. It was found that at temperatures below 900 °C, PNS char demonstrated high gasification reactivity because of its high alkali index, while at any temperature above 900 °C, conversion of OPS char was faster due to its high porosity and larger surface area
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نویسندگان
p Lahijani
School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, ۱۴۳۰۰ Nibong Tebal, Pulau Pinang, Malaysia
g.d Najafpour
Biotechnology Research Laboratory, Department of Chemical Engineering, Babol Noshirvani University of Technology, Shariati Ave., Babol, Iran, Post Code:۴۷۱۴۸-۷۱۱۶۷
m Mohammadi
Biotechnology Research Laboratory, Department of Chemical Engineering, Babol Noshirvani University of Technology, Shariati Ave., Babol, Iran, Post Code:۴۷۱۴۸-۷۱۱۶۷