Utilization of palm acid oil for a diffusion combustion burner as fuel and nitrogen oxides reduction by the thermally decomposed hydrocarbons
Utilization of palm acid oil for a diffusion combustion burner as fuel and nitrogen oxides reduction by the thermally decomposed hydrocarbons
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DOI：
10.1016/j.energy.2021.120173
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发表时间：
2021-02
期刊：
影响因子：
9
通讯作者：
H. Noge;Y. Ueno;H. Kadir;W. J. Yahya
中科院分区：
文献类型：
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作者：
H. Noge;Y. Ueno;H. Kadir;W. J. Yahya
棕榈酸油（PAO）被认为是一种可能的可再生能源。 PAO-柴油混合燃料可以保持PAO沉积温度较低，这使得它易于用作低风险的燃烧器燃料。然而，PAO作为燃烧燃料的使用及其排放特性尚未见报道。本研究的重点是利用 PAO 作为燃烧器燃烧燃料，并寻找其排放特性，包括 PAO 在燃烧器中减少 NO 的原因。制备混合燃料并评估混合燃料中的PAO沉淀。之后，进行了燃烧器测试。最后，利用流动反应器研究了燃烧器中NO减少的原因。结果表明，化学试剂和超声波使PAO颗粒变小，控制了部分PAO沉积。在燃烧器中，具有相对较低游离脂肪酸 (LFFA) 燃料的 20 wt.% PAO 可将 NO x 减少高达 30%，同时保持高温。在反应器中，柴油不仅可以减少 60% 的 NO，而且在当量比 (φ)= 2.63 时，PAO (LFFA) 可以减少 75∼80% 的 NO。这项研究表明，尽管完全控制 PAO 沉积很困难，但 PAO 具有减少 NO 的潜力。
Palm acid oil (PAO) is considered to be a possible renewable energy. PAO-diesel mixed fuel can keep PAO deposition temperature low, which makes it easy to use as the burner fuel at low risk. However, the use of PAO for combustion fuel and its emission characteristics have not been reported. This study is focused on utilizing PAO as a burner combustion fuel and on finding its emission characteristics including the cause of NO reduction in the burner by PAO. The mixed fuels are prepared and PAO precipitations in the mixed fuel are evaluated. After that, the burner tests were performed. Finally, the cause of the NO reduction in the burner is investigated with a flow reactor. The results show that chemical regents and ultrasound make PAO particle smaller and control a part of PAO deposition. In the burner, 20 wt.% PAO having relatively low free fatty acid (LFFA) fuels reduce NO x by up to 30% while keeping high temperature. In the reactor, NO is reduced not only 60% by diesel but also 75∼ 80% by the PAO (LFFA) at equivalence ratio (φ)= 2.63. This study demonstrates that the PAO has potential for NO reduction though complete PAO deposition control is difficult.