Hydrothermal carbonization of anaerobically digested maize silage

被引：349

作者：

Mumme, Jan ^{[1
]}

Eckervogt, Lion ^{[1
]}

Pielert, Judith ^{[2
]}

Diakite, Mamadou ^{[1
]}

Rupp, Fabian ^{[1
]}

Kern, Juergen ^{[1
]}

机构：

[1] Leibniz Inst Agr Engn Potsdam Bornim, D-14469 Potsdam, Germany

[2] Tech Univ Berlin, Dep Soil Sci, D-10587 Berlin, Germany

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 19期

关键词：

Hydrothermal carbonization; Digestate; Biochar; Hydrochar; BET; PLANT-MATERIAL; CARBON; BIOMASS; DEGRADATION; GASES;

D O I：

10.1016/j.biortech.2011.06.099

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Hydrochars were prepared by hydrothermal carbonization (HTC) of maize silage previously treated at 55 degrees C in a two-stage solid-state reactor system. The HTC was carried out in a 1-L stirred pressure reactor with h pH regulation by citric acid. The treated silage carbonized at relatively mild conditions (190 degrees C, 2 h), and the hydrochars showed mainly amorphous macro-size features with a carbon content of 59-79% (ash-free, dry) and a higher heating value of 25-36 MJ kg(-1). Temperature was the main influencing factor. The surface area according to Brunauer-Emmett-Teller (BET) analysis was highest at 190 degrees C (12.3 m(2) g(-1)). Based on these results, the hydrochars are potentially interesting for applications such as an alternative fuel or a soil conditioner. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：9255 / 9260

页数：6

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