强碱和熟石灰预处理芦竹以提高酶解消化率和甲烷产量的比较。
Comparison of sodium hydroxide and calcium hydroxide pretreatments of giant reed for enhanced enzymatic digestibility and methane production.
机构信息
Department of Food, Agricultural and Biological Engineering, The Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691-4096, United States; Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Agricultural Ministry, Collaborative Innovation Center of Biomass Energy, Henan Agricultural University, Zhengzhou 450002, China.
Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Agricultural Ministry, Collaborative Innovation Center of Biomass Energy, Henan Agricultural University, Zhengzhou 450002, China; Quasar Energy Group, 2705 Selby Road, Wooster, OH 44691, United States.
出版信息
Bioresour Technol. 2017 Nov;244(Pt 1):1150-1157. doi: 10.1016/j.biortech.2017.08.067. Epub 2017 Aug 16.
NaOH pretreatment with leachate reuse and Ca(OH) pretreatment were compared for improved enzymatic digestibility and biogas production from giant reed, a promising energy crop. The NaOH pretreatment with leachate reuse increased glucose yields during enzymatic hydrolysis by 2.6-fold, and methane yields during anaerobic digestion by 1.4- to 1.6-fold. However, NaOH pretreatment had a negative net benefit (i.e., revenue from increased energy production minus chemical cost). Pretreatment with 7-20% Ca(OH) not only improved glucose yield and methane yield by up to 2.3-fold and 1.4-fold, respectively, but also obtained a net benefit of $1.1-5.8/tonne dry biomass. Thus, Ca(OH) pretreatment was shown to be more feasible than NaOH pretreatment for biogas production from giant reed.
NaOH 预处理与渗滤液再利用和 Ca(OH) 预处理进行了比较，以提高能源作物芦竹的酶解糖化率和沼气产量。NaOH 预处理与渗滤液再利用使酶解糖化过程中的葡萄糖产量提高了 2.6 倍，厌氧消化过程中的甲烷产量提高了 1.4 到 1.6 倍。然而，NaOH 预处理的净收益为负（即，增加的能源生产收入减去化学成本）。用 7-20%的 Ca(OH) 预处理不仅使葡萄糖和甲烷的产量分别提高了 2.3 倍和 1.4 倍，而且获得了 1.1-5.8 美元/吨干生物质的净收益。因此，与 NaOH 预处理相比，Ca(OH) 预处理更适合从芦竹中生产沼气。
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