Effects of Biomass Types and Carbonization Conditions on the Chemical Characteristics of Hydrochars

被引：113

作者：

Cao, Xiaoyan ^{[2
]}

Ro, Kyoung S. ^{[3
]}

Libra, Judy A. ^{[4
]}

Kammann, Claudia I. ^{[5
]}

Lima, Isabel ^{[6
]}

Berge, Nicole ^{[7
]}

Li, Liang ^{[7
]}

Li, Yuan ^{[2
]}

Chen, Na ^{[2
]}

Yang, John ^{[8
]}

Deng, Baolin ^{[9
]}

Mao, Jingdong ^{[1
,2
]}

机构：

[1] Nanjing Agr Univ, Dept Chem, Coll Sci, Nanjing 210095, Jiangsu, Peoples R China

[2] Old Dominion Univ, Dept Chem & Biochem, Norfolk, VA 23529 USA

[3] ARS, Coastal Plains Soil Water & Plant Res Ctr, USDA, Florence, SC 29501 USA

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

[5] Univ Giessen, Dept Plant Ecol, D-35392 Giessen, Germany

[6] ARS, So Reg Res Ctr, USDA, New Orleans, LA 70124 USA

[7] Univ S Carolina, Dept Civil & Environm Engn, Columbia, SC 29208 USA

[8] Lincoln Univ Missouri, Dept Agr & Environm Sci, Jefferson City, MO 65102 USA

[9] Univ Missouri, Dept Civil & Environm Engn, Columbia, MO 65211 USA

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2013年 / 61卷 / 39期

基金：

美国国家科学基金会;

关键词：

hydrochar; biomass type; lignin; process condition; chemical structure; SOLID-STATE NMR; HYDROTHERMAL CARBONIZATION; STRUCTURAL-PROPERTIES; CARBON MATERIALS; BLACK CARBON;

D O I：

10.1021/jf402345k

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Effects of biomass types (bark Mulch versus sugar beet pulp), and carbonization processing conditions (temperature, residence time; and phase of reaction medium) on the chemical characteristics of hydrochars were examined by elemental analysis, solid-state C-13 NMR, and chemical and biochemical oxygen demand measurements. Bark hydrochars were more aromatic than sugar beet hydrochars produced under the same processing conditions. The presence of lignin in bark led to a much lower biochemical oxygen demand (BOD) of bark than sugar beet and increasing trends of BOD after carbonization. Compared with those prepared, at 200 degrees C, 250 degrees C hydrochars were more aromatic and depleted of carbohydrates. Longer residence time (20 versus 3 h) at 250 degrees C resulted in the enrichment of nonprotonated aromatic carbons. Both bark and sugar beet pulp underwent deeper carbonization,,,during water hydrothermal carbonization than during steam hydrothermal carbonization (200 degrees C, 3 h) in terms of more abundant aromatic C but less carbohydrate C in water hydrochars.

引用

页码：9401 / 9411

页数：11

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