Energy recovery from lipid extracted, transesterified and glycerol codigested microalgae biomass
Energy recovery from lipid extracted, transesterified and glycerol codigested microalgae biomass
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DOI：
10.1111/j.1757-1707.2009.01029.x
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发表时间：
2009-12-01
影响因子：
5.6
通讯作者：
Carrington, Gerry C.
中科院分区：
文献类型：
--
作者：
Ehimen, Ehiaze A.;Connaughton, Sean;Carrington, Gerry C.
通过生物柴油生产过程中微藻生物质残留物的厌氧消化产生甲烷（CH 4）具有满足初级生物质到燃料转化过程的一些能量需求的潜力。本文探讨了实际的甲烷产量可实现从厌氧转化的微藻残留物（以及与甘油共消化）后，生物柴油生产使用传统的和原位酯交换法。结果表明，在常规酯交换过程中使用的脂质提取溶剂的类型可以抑制随后的CH 4产生。在实际甲烷产量的基础上，使用提取的脂质和酯交换的微藻样品获得8.7-10.5 MJ kg-1的干微藻生物质残渣的可回收能量。在用甘油对微藻残余物进行编码时，观察到CH 4产量增加4-7%。
The production of methane (CH4) via the anaerobic digestion of microalgae biomass residues from the biodiesel production process has the potential to meet some of the energy requirements of the primary biomass to fuel conversion process. This paper investigates the practical CH4 yields achievable from the anaerobic conversion of the microalgae residues (as well as codigestion with glycerol) after biodiesel production using both the conventional and in situ transesterification methods. Results demonstrate that the type of lipid extraction solvent utilized in the conventional transesterification process could inhibit subsequent CH4 production. On the basis of actual CH4 production, a recoverable energy of 8.7-10.5 MJ kg-1 of dry microalgae biomass residue was obtained using the lipid extracted and transesterified microalgae samples. On codigesting the microalgae residues with glycerol, a 4-7% increase in CH4 production was observed.