The composition of gaseous products from corn stalk pyrolysis process

IF 1.1 4区工程技术 Q4 THERMODYNAMICS Thermal Science Pub Date : 2014-01-01 DOI:10.2298/TSCI120711021D

N. Djuric, D. Brankov, R. T. Kosanic, B. Ceranic, B. Nakomcic-Smaragdakis

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引用次数: 5

Abstract

This paper describes experimental investigation of corn stalk pyrolysis. The mass of the sample (corn stalk) inside a pyrolytic reactor was 10 g with particle diameter of 5-10 mm. The sample in the reactor was heated in the temperature range of 24-650oC and the gas components generated during corn stalk pyrolysis were measured using gas analyzer G750 POLYTECTOR II. The sample mass before, during and after pyrolysis process was determined by using METTLER P1000 digital scale. Experimental results of the corn stalk pyrolysis indicate that as the temperature in the reactor increases from 300-650oC, the pyrolytic gas yield increases from 60-72%, while the char (coke) yield decreases from 40-28%. In the temperature range mentioned, the CO2 volume fraction in pyrolytic gas decreases, while the volume fraction of methane increases up to 39.5% followed with a constant decrease in the volume fraction of oxygen. The results obtained can represent starting basis for determining material and heat balance of pyrolysis process as well as corn stalk pyrolysis equipment.

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玉米秸秆热解过程中气态产物的组成

本文介绍了玉米秸秆热解的实验研究。热解反应器内样品(玉米秸秆)质量为10 g，颗粒直径为5 ~ 10 mm。在24-650℃的温度范围内加热反应器内的样品，使用G750 POLYTECTOR II气体分析仪测量玉米秸秆热解过程中产生的气体组分。采用METTLER P1000数字秤对热解前、热解中、热解后的样品质量进行测定。玉米秸秆热解实验结果表明，随着反应器温度从300 ~ 650℃升高，热解气产率从60 ~ 72%升高，焦炭产率从40 ~ 28%降低。在此温度范围内，热解气中CO2体积分数下降，甲烷体积分数上升至39.5%，随后氧气体积分数不断下降。所得结果可作为确定热解过程物料和热平衡以及玉米秸秆热解设备的起始依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Thermal Science 工程技术-热力学

CiteScore

2.70

自引率

29.40%

发文量

399

审稿时长

5 months

期刊介绍： The main aims of Thermal Science to publish papers giving results of the fundamental and applied research in different, but closely connected fields: fluid mechanics (mainly turbulent flows), heat transfer, mass transfer, combustion and chemical processes in single, and specifically in multi-phase and multi-component flows in high-temperature chemically reacting flows processes present in thermal engineering, energy generating or consuming equipment, process and chemical engineering equipment and devices, ecological engineering, The important characteristic of the journal is the orientation to the fundamental results of the investigations of different physical and chemical processes, always jointly present in real conditions, and their mutual influence. To publish papers written by experts from different fields: mechanical engineering, chemical engineering, fluid dynamics, thermodynamics and related fields. To inform international scientific community about the recent, and most prominent fundamental results achieved in the South-East European region, and particularly in Serbia, and - vice versa - to inform the scientific community from South-East European Region about recent fundamental and applied scientific achievements in developed countries, serving as a basis for technology development. To achieve international standards of the published papers, by the engagement of experts from different countries in the International Advisory board.