Effect of oxygen addition in steam gasification of chicken manure

Hussein M. S.; Burra K. G.; Amano R. S.; Gupta A. K.

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Effect of oxygen addition in steam gasification of chicken manure

机译：添加氧气对鸡粪蒸汽气化的影响

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The continued increase in the production scale of chicken industry have led to increased use of chicken manure as fertilizers or landfill disposal which leads to land and water pollution by eutrophication from landfills. Thus, although chicken manure is rich in ash and moisture content, thermochemical waste to energy techniques such as gasification of chicken manure makes it an efficient alternative energy source with clean waste management. The role of oxygen addition to steam gasification of chicken manure at different concentrations was examined and evolutionary behavior of the gases evolved with time were analyzed using gas chromatography. Isothermal conditions were maintained in a semi-batch reactor at a temperature of 1173 K while the oxygen concentration was increased from 0% to 12% (dry basis). From the oxygen concentrations examined, the addition of oxygen decreased the reaction duration by 50% while improving the syngas characteristics and energy yield on short periods. The reduction in energy yield was limited to minimal amounts that varied from 4% to 15% with reduction directly proportional to oxygen content in the gasifying agent. Accumulative yield of carbon monoxide was maximum for oxygen concentration of 9% (dry basis) above which extra oxygen concentration caused further oxidation of the syngas components to decrease the energy content of syngas yield. The results revealed reduction in net energy requirements by decreasing the reaction time by up to 70% (for oxygen content of 12%) with minimal reduction in energy content from syngas yield and improved carbon conversion. These results provide improved design strategies for better waste to energy technique by addition of oxygen to steam during gasification of chicken manure. (C) 2016 Elsevier Ltd. All rights reserved.

机译：养鸡业的生产规模持续增长，导致越来越多地将鸡粪用作肥料或垃圾填埋场，这导致了填埋场富营养化对土地和水的污染。因此，尽管鸡粪中的灰分和水分含量很高，但是热化学废物转化为能源技术（例如鸡粪气化）使其成为具有清洁废物管理的有效替代能源。检查了氧气在不同浓度鸡粪蒸汽气化中的作用，并使用气相色谱分析了随时间释放的气体的演变行为。在半间歇反应器中将等温条件保持在1173 K的温度下，同时氧浓度从0％增加到12％（干基）。从所检查的氧气浓度来看，添加氧气使反应时间缩短了50％，同时在短时间内提高了合成气的特性和能量产率。能量产率的降低被限制在从4％到15％不等的最小量，降低的程度与气化剂中的氧含量成正比。当氧气浓度为9％（干基）时，一氧化碳的累积收率最大，在此之上，额外的氧气浓度导致合成气成分进一步氧化，从而降低了合成气收率的能量含量。结果表明，通过减少多达70％的反应时间（氧含量为12％），可以减少净能量需求，同时合成气收率的能量含量减少最少，碳转化率提高。这些结果提供了改进的设计策略，可通过在鸡粪气化过程中向蒸汽中添加氧气来更好地将能源浪费掉。（C）2016 Elsevier Ltd.保留所有权利。

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来源
《Fuel》 |2017年第1期|428-435|共8页
作者
Hussein M. S.; Burra K. G.; Amano R. S.; Gupta A. K.;
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作者单位

Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA|Univ Wisconsin, Milwaukee, WI 53201 USA;

Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA|Univ Maryland, College Pk, MD 20742 USA;

Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA|Univ Maryland, College Pk, MD 20742 USA;

Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Steam/oxygen gasification; Chicken manure; Biomass; Evolved syngas analysis; Renewable energy;

机译：蒸汽/氧气气化;鸡粪;生物质;合成气分析;可再生能源;

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2. Steam/oxygen gasification of dried sewage sludge in a two-stage gasifier: Effects of the steam to fuel ratio and ash of the activated carbon on the production of hydrogen and tar removal [J] . Choi Young-Kon, Cho Min-Hwan, Kim Joo-Sik Energy . 2015,第NOVa期

机译：两级气化炉中干污泥的蒸汽/氧气气化：蒸汽燃料比和活性炭灰分对氢气和焦油去除的影响
3. Steam gasification of wood pellets, sewage sludge and manure: Gasification performance and concentration of impurities [J] . Schweitzer Daniel, Gredinger Andreas, Schmid Max, Biomass & bioenergy . 2018,第APRa期

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4. THE INFLUENCE OF MIXING, ADDITION OF BUFFER, SILAGE AND CHICKEN MANURE ON THE BIOGAS PRODUCTION FROM CATTLE MANURE [C] . E Gregeby, G ?zdemir, U Welander European biomass conference . 2010

机译：牛粪中混合，添加缓冲剂，青贮饲料和鸡粪对生物气产量的影响
5. Investigation of Co-Pyrolysis and Co-Gasification of Chicken Manure and Rice Husk [D] . Espindola , Juan C. 2020

机译：鸡粪和稻壳共热分解与共气化的研究
6. PSXI-39 The effect of addition of proteolytic enzyme and microorganisms on feed efficiency colon microorganisms and manure odor in broiler chickens [O] . Sangsoo Sun, Cheolju Park, Hyunchae Na, 2019

机译：PSXI-39添加蛋白水解酶和微生物对饲料效率结肠微生物和肉鸡中的粪便气味的影响
7. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

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8. Underground Coal Gasification Using Oxygen and Steam [R] . Stephens, D. R., Thorsness, C. B., Hill, R. W. 1984

机译：利用氧气和蒸汽进行地下煤气化

Effect of oxygen addition in steam gasification of chicken manure

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