Energy-efficient methane production from macroalgal biomass through chemo disperser liquefaction

다국어 초록 (Multilingual Abstract)

<P><B>Abstract</B></P> <P>In this study, an effort has been made to reduce the energy cost of liquefaction by coupling a mechanical disperser with a chemical (sodium tripolyphosphate). In terms of the cost and specific energy demand of liquefaction, the algal biomass disintegrated at 12,000rpm for 30min, and an STPP dosage of about 0.04g/gCOD was chosen as an optimal parameter. Chemo disperser liquefaction (CDL) was found to be energetically and economically sustainable in terms of liquefaction, methane production, and net profit (15%, 0.14gCOD/gCOD, and 4 USD/Ton of algal biomass) and preferable to disperser liquefaction (DL) (10%, 0.11 gCOD/gCOD, and -475 USD/Ton of algal biomass).</P> <P><B>Highlights</B></P> <P> <UL> <LI> Chemo disperser liquefaction boost up disintegration synergistically. </LI> <LI> This modernistic method induces solubilization at DSE of 3312.6kJ/kg TS. </LI> <LI> Kinetic study represents rapid disintegration rate by this incentive process. </LI> <LI> Chemo disperser liquefaction archived a higher biodegradability (0.14gCOD/gCOD). </LI> <LI> Net profit of about 4 USD/per ton of algae biomass was achieved. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>