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| |  | ||   / _ \\    ____      / _ \\  | || | || 
| |/\| ||  / //\ \\  |    \\   | / \ || | '--' || 
|  /\  || |  ___  || | [] ||   | \_/ || | .--. || 
|_// \_|| |_||  |_|| |  __//    \___//  |_|| |_|| 
`-`   `-` `-`   `-`  |_|`-`     `---`   `-`  `-`  
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Text this: Biomass gasification bottom ash as a source of CaO catalyst for biodiesel production via transesterification of palm oil