Demand-driven biogas production from Upflow Anaerobic Sludge Blanket (UASB) reactors to balance the power grid

被引：6

作者：

Shinde, Rajas ^{[1
,2
,3
]}

Hackula, Anga ^{[1
,2
]}

Shea, Richard O. ^{[1
,2
]}

Barth, Susanne ^{[3
]}

Murphy, Jerry D. ^{[1
,2
]}

Wall, David M. ^{[1
,2
]}

机构：

[1] Univ Coll Cork, Environm Res Inst, SFI MaREI Ctr Energy Climate & Marine, Cork, Ireland

[2] Univ Coll Cork, Sch Engn & Architecture, Civil Struct & Environm Engn, Cork, Ireland

[3] Teagasc, Crop Sci Dept, Crops Environm & Land Use Program, Oak Pk, Carlow, Co Carlow, Ireland

来源：

BIORESOURCE TECHNOLOGY | 2023年 / 385卷

基金：

爱尔兰科学基金会;

关键词：

Two-phase anaerobic digestion; On-demand biogas; Dispatchable; Renewable electricity; Bioenergy; Kinetic model; OPERATION; DIGESTION; SYSTEM; WASTE;

D O I：

10.1016/j.biortech.2023.129364

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Future energy systems necessitate dispatchable renewable energy to balance electrical grids with high shares of intermittent renewables. Biogas from anaerobic digestion (AD) can generate electricity on-demand. High-rate methanogenic reactors, such as the Upflow Anaerobic Sludge Blanket (UASB), can react quicker to variations in feeding as compared to traditional AD systems. In this study, experimental trials validated the feasibility of operating the UASB in a demand-driven manner. The UASB was operated with leachate produced from a hydrolysis reactor treating grass silage. The UASB demonstrated a high degree of flexibility in responding to variable feeding regimes. The intra-day biogas production rate could be increased by up to 123% under 4 hours in demand-driven operation, without significant deterioration in performance. A model based on kinetic analysis was developed to help align demand-driven operation with the grid. The findings suggest significant opportunities for UASBs to provide positive and negative balance to the power grid.

引用

页数：10

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