Syngas production from aqueous phase reforming of glycerol–water mixture for compression ignition engine

IF 4 4区环境科学与生态学 Q2 ENVIRONMENTAL STUDIES

Energy & Environment Pub Date : 2023-10-03 DOI:10.1177/0958305x231204028

Vetrivel Kumar Kandasamy, Arunkumar Munimathan, Silambarasan Rajendran, Ratchagaraja Dhairiyasamy

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Abstract

Syngas produced from glycerol using aqueous phase reforming for nickel-based catalysts with different support materials were tested in a compression ignition (CI) engine. Experiments were conducted using nickel–alumina, nickel–lanthanum (NL), and nickel–ceria catalysts at 1:1, 1:2, 1:3, and 1:4 glycerol–water ratios and temperatures of 240°C, 260°C, and 280°C. The NL catalyst showed the highest syngas and hydrogen yield of 90.58% and 76.42%, respectively, at 1:3 ratio and 260°C. The optimized NL syngas and diesel were tested in a CI engine at 6 to 30 lpm flow rates. At 30 lpm flow, brake thermal efficiency increased by 3.15%, NO x emission was reduced by 21.22%, and smoke lowered significantly compared to diesel. The faster hydrogen combustion in syngas increased the heat release rate and cylinder peak pressure. CO and HC emissions increased at lower loads due to diluted combustion but reduced at higher loads. NL showed the best performance and emissions among the syngases due to higher hydrogen content. In summary, the NL syngas at 30 lpm showed great potential in CI engines by improving combustion and performance and reducing emissions.

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压缩点火发动机用甘油-水混合物水相重整制合成气

在压缩点火(CI)发动机上对镍基催化剂的水相重整制甘油合成气进行了试验。实验采用镍-氧化铝、镍-镧(NL)和镍-铈催化剂，分别在1:1、1:2、1:3和1:4甘油-水比和温度240℃、260℃和280℃下进行。在1:3比例和260℃条件下，NL催化剂的合成气和氢气收率最高，分别为90.58%和76.42%。优化后的NL合成气和柴油在CI发动机中以6 ~ 30lpm的流速进行了测试。在30lpm流量下，与柴油相比，制动热效率提高3.15%，nox排放降低21.22%，烟气显著降低。合成气中氢气燃烧速度越快，放出热量的速度越快，气缸峰值压力也越大。由于燃烧稀释，低负荷时CO和HC排放量增加，而高负荷时则减少。NL由于氢含量高，在合成气中表现出最好的性能和排放。综上所述，30 lpm的NL合成气通过改善燃烧和性能以及减少排放，在CI发动机中显示出巨大的潜力。

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来源期刊

Energy & Environment ENVIRONMENTAL STUDIES-

CiteScore

7.60

自引率

7.10%

发文量

157

期刊介绍： Energy & Environment is an interdisciplinary journal inviting energy policy analysts, natural scientists and engineers, as well as lawyers and economists to contribute to mutual understanding and learning, believing that better communication between experts will enhance the quality of policy, advance social well-being and help to reduce conflict. The journal encourages dialogue between the social sciences as energy demand and supply are observed and analysed with reference to politics of policy-making and implementation. The rapidly evolving social and environmental impacts of energy supply, transport, production and use at all levels require contribution from many disciplines if policy is to be effective. In particular E & E invite contributions from the study of policy delivery, ultimately more important than policy formation. The geopolitics of energy are also important, as are the impacts of environmental regulations and advancing technologies on national and local politics, and even global energy politics. Energy & Environment is a forum for constructive, professional information sharing, as well as debate across disciplines and professions, including the financial sector. Mathematical articles are outside the scope of Energy & Environment. The broader policy implications of submitted research should be addressed and environmental implications, not just emission quantities, be discussed with reference to scientific assumptions. This applies especially to technical papers based on arguments suggested by other disciplines, funding bodies or directly by policy-makers.