Effect of different concentrations of O-2 under inert and CO2 atmospheres on the swine manure combustion process

Lopez-Gonzalez D.; Parascanu M. M.; Fernandez-Lopez M.; Puig-Gamero M.; Soreanu G.; Avalos-Ramirez A.; Valverde J. L.; Sanchez-Silva L.

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Effect of different concentrations of O-2 under inert and CO2 atmospheres on the swine manure combustion process

机译：惰性气体和二氧化碳气氛下不同浓度的O-2对猪粪燃烧过程的影响

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The oxy-fuel combustion of swine manure has been evaluated by thermogravimetric-mass spectrometric analysis. Manure samples showed a two-stage decomposition profile. The first stage is related to devolatilization of the sample and the second stage involved oxidation of the char formed in situ. Replacement of the inert carrier gas by CO2 did not seem to affect the first stage. However, this change in carrier gas delayed the oxidation of the samples during the second stage. This finding is mainly attributed to the slower transfer of thermal energy to the fuels in CO2/O-2 atmospheres. The increase in the oxygen partial pressure in the reaction medium had a marked effect on the oxidation stage by shifting the process to lower temperatures (from 514 to 478 degrees C and from 525 to 475 degrees C for Ar/O-2 and CO2/O-2, respectively). The kinetics of the process were evaluated by the integral iso-conversional method of KissingerAkahira-Sunose (KAS). The two aforementioned stages were clearly identified as two regions of apparent activation energy were obtained. A similar profile was found for the gaseous products released in the process in both atmospheres, as evidenced by a distribution with two emission peaks, which is consistent with the two combustion regions. However, the formation of light products such as H-2, CO and CH4 was favored on using high proportions of CO2 (similar to 80 vol.%). (C) 2017 Elsevier Ltd. All rights reserved.

机译：猪粪的氧燃料燃烧已通过热重质谱分析进行了评估。粪便样品显示出两阶段分解曲线。第一阶段涉及样品的脱挥发分，第二阶段涉及原位形成的炭的氧化。用二氧化碳代替惰性载气似乎并不影响第一阶段。但是，载气的这种变化延迟了第二阶段样品的氧化。该发现主要归因于在CO2 / O-2气氛中热能向燃料的传递较慢。反应介质中氧分压的升高通过将工艺转移至更低的温度（对于Ar / O-2和CO2 / O，从514℃降至478℃，从525℃降至475℃）而对氧化阶段产生了显着影响。 -2）。通过KissingerAkahira-Sunose（KAS）的积分等转换方法评估了该过程的动力学。清楚地确定了上述两个阶段，因为获得了两个表观活化能区域。对于在两个大气中在该过程中释放的气态产物，也发现了类似的曲线，这通过具有两个排放峰的分布来证明，这与两个燃烧区域一致。然而，由于使用高比例的二氧化碳（约占80％（体积）），有利于形成轻产物，如H-2，CO和CH4。（C）2017 Elsevier Ltd.保留所有权利。

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来源
《Fuel》 |2017年第may1期|23-32|共10页
作者
Lopez-Gonzalez D.; Parascanu M. M.; Fernandez-Lopez M.; Puig-Gamero M.; Soreanu G.; Avalos-Ramirez A.; Valverde J. L.; Sanchez-Silva L.;
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作者单位

Univ Castilla La Mancha, Dept Chem Engn, Avda Camilo Jose Cela 12, Ciudad Real 13071, Spain;

Tech Univ Gheorghe Asachi Iasi, Dept Environm Engn & Management, 73 D Mangeron Blvd, Iasi 700050, Romania;

Univ Castilla La Mancha, Dept Chem Engn, Avda Camilo Jose Cela 12, Ciudad Real 13071, Spain;

Univ Castilla La Mancha, Dept Chem Engn, Avda Camilo Jose Cela 12, Ciudad Real 13071, Spain;

Tech Univ Gheorghe Asachi Iasi, Dept Environm Engn & Management, 73 D Mangeron Blvd, Iasi 700050, Romania;

Ctr Natl Electrochim & Technol Environm, Quebec City, PQ, Canada;

Univ Castilla La Mancha, Dept Chem Engn, Avda Camilo Jose Cela 12, Ciudad Real 13071, Spain;

Univ Castilla La Mancha, Dept Chem Engn, Avda Camilo Jose Cela 12, Ciudad Real 13071, Spain;

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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
Combustion; TGA-MS; Manure; DSC;

机译：燃烧;TGA-MS;Manure;DSC;

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Effect of different concentrations of O-2 under inert and CO2 atmospheres on the swine manure combustion process

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