Comparison of Biological Efficiency Assessment Methods and Their Application to Full-Scale Biogas Plants

被引：3

作者：

Huelsemann, Benedikt ^{[1
]}

Maechtig, Torsten ^{[2
]}

Pohl, Marcel ^{[3
]}

Liebetrau, Jan ^{[4
]}

Mueller, Joachim ^{[5
]}

Hartung, Eberhard ^{[2
]}

Oechsner, Hans ^{[1
]}

机构：

[1] Univ Hohenheim, State Inst Agr Engn & Bioenergy, Garbenstr 9, D-70599 Stuttgart, Germany

[2] Univ Kiel, Inst Agr Engn, Olshausenstr 40, D-24098 Kiel, Germany

[3] DBFZ Deutsch Biomasseforschungszentrum Gemeinnutz, Biochem Convers Dept, Torgauer Str 116, D-04347 Leipzig, Germany

[4] Rytec GmbH, Consulting & Res, Pariser Ring 37, D-76532 Baden Baden, Germany

[5] Univ Hohenheim, Inst Agr Engn, Trop & Subtrop Grp, D-70599 Stuttgart, Germany

来源：

ENERGIES | 2021年 / 14卷 / 09期

关键词：

anaerobic digestion; biochemical methane potential test; fermentable organic dry matter content; gross calorific value; mass and energy balance; ANAEROBIC-DIGESTION; CO-DIGESTION; ON-FIELD; PERFORMANCE; WASTE; BIOMETHANE; GERMANY; MASS;

D O I：

10.3390/en14092381

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

For calculation of biological efficiency of a biogas plant (BP), it is required to determine the specific methane potential (SMP) of the substrate. A study comparing available methods for determination of SMP and the comparison with data of full-scale BPs is missing but necessary according to the differences in process conditions between both. Firstly, mass and mass associated energy balances of 33 full-scale BPs were calculated and evaluated. The results show plausible data for only 55% of the investigated BPs. Furthermore, conversion and yield efficiencies were calculated according to six different methods for SMP determination. The results show a correlation between the measured on-site specific methane yield and the calculated SMP by methods based on biological degradability. However, these methods underestimate the SMP. Calculated SMPs based on calorific values are higher, but less sensitive. A combination of biochemical and energetical methods is a promising approach to evaluate the efficiency.

引用

页数：22

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