Biochar and renewable energy generation from poultry litter waste: A technical and economic analysis based on computational simulations
Biochar and renewable energy generation from poultry litter waste: A technical and economic analysis based on computational simulations
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DOI：
10.1016/j.apenergy.2015.01.029
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发表时间：
2015-12-15
期刊：
影响因子：
11.2
通讯作者：
Hewitt, N. J.
中科院分区：
文献类型：
--
作者：
Huang, Y.;Anderson, M.;Hewitt, N. J.
本研究的主题是从家禽粪便中产生生物炭以及电和/或热的技术和经济分析。为了进行这项研究，使用了工艺模拟软件ECLIPSE。对选定的系统进行了建模和模拟：热解/气化过程与有机朗肯循环(ORC)相结合。该设施将能够每小时处理1500公斤的PL。模拟表明，当使用参考PL时，该工艺的生物炭产量约为398 kg/h，碳含量为38%。ORC系统的发电量为388千瓦时(E)。回收用于空间采暖的低品位热估计为1831kW·h(Th)。经济分析的结果表明，当以20磅/吨的价格处理和储存原料，而没有任何卖热或卖电的选择时，生物炭的盈亏平衡售价(Besp)约为218磅/吨。如果所生产的电力和热能的销售量被认为是大约60磅/兆瓦氦和5磅/兆瓦小时(TH)，那么BESP将减少到178磅/吨。案例研究还表明，当引入10磅/吨的登机费时，BESP可以进一步降至65磅/吨，相当于降低63%。另一方面，如果所产生的生物炭在市场上的平均价格为150磅/吨，而工厂获得了政府颁发的可再生债务证书(ROC)，那么发电的水平电力成本(LCOE)将为46磅/兆瓦·小时(E)，与化石燃料发电厂产生的电力兼容。(C)2015爱思唯尔有限公司。保留所有权利。
The technical and economic analysis of generating biochar together with electricity and/or heat from poultry litter (PL) waste is the subject of this study. To carry out this study, the process simulation software ECLIPSE is used. Modelling and simulation have been conducted over the selected system: the pyrolysis/gasification process integrated with an Organic Rankine Cycle (ORC). The facility will be capable of processing 1500 kg of PL every hour. The simulation shows that when a reference PL is used the yield of biochar from the process is around 398 kg/h with a 38% carbon content. Electricity generated by the ORC system is 388 kW h(e). Recovered low grade heat for space heating is estimated at 1831 kW h(th). The results of the economic analysis suggest that when paying 20 pound/tonne for handling and storing the feedstock without any options of selling either heat or electricity, the break-even selling price (BESP) of biochar is around 218 pound/tonne. If the sale of electricity and heat produced is considered to be around 60 pound/MW he and 5 pound/MW h(th), the BESP will decrease to 178 pound/tonne. The case studies also indicate that when a gate fee of 10 pound/tonne is introduced the BESP can be further reduced to 65 pound/tonne, equivalent to a 63% reduction. On the other hand if biochar generated has an average price of 150 pound/tonne in the market and the plant receives one Renewable Obligation Certificate (ROC) from the Government, the Levelised Cost of Electricity (LCOE) for the electricity generation will be 46 pound/MW h(e), which is compatible with electricity generated by fossil fuel power plants. (C) 2015 Elsevier Ltd. All rights reserved.