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首页> 外文会议>TAPPI(Technical Association of the Pulp and Paper Industry) Engineering, Pulping amp; Environmental Conference; 20061105-08; Atlanta,GA(US) >Measurement of Tars Produced during Low-Temperature Black Liquor Gasification
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Measurement of Tars Produced during Low-Temperature Black Liquor Gasification

机译：低温黑液气化过程中产生的焦油的测量

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摘要

Tar formation during black liquor low-temperature gasification was studied both in a full-scale steam reformer and in a small-scale gasifier. In the full-scale unit, gravimetric tar contents in the product gas were determined to correspond to approximately 4.5% of liquor organic carbon. An approximately equal amount of lighter condensable organic compounds was estimated to be present in the product gas. The tar contained phenolics and both substituted and unsubstituted multi-ring compounds. 40% of the tar compounds detected by GC/MS analysis were one-ring compounds. The tars from the small-scale unit were primarily mono-, di- and tri-substituted one and two-ring phenolic compounds. Increasing the gasifier temperature decreased tar formation and increasing black liquor solids feed rate increased tar formation.
机译：在大型蒸汽重整器和小型气化炉中都研究了黑液低温气化过程中焦油的形成。在满量程单元中，确定了产品气中的重量焦油含量约占液体有机碳的4.5％。估计在产物气体中存在大约等量的较轻的可冷凝有机化合物。焦油含有酚类以及取代和未取代的多环化合物。通过GC / MS分析检测到的焦油化合物中有40％是单环化合物。来自小规模单位的焦油主要是单，二和三取代的一环和二环酚类化合物。气化炉温度的升高减少了焦油的形成，而黑液固体进料速率的增加则增加了焦油的形成。

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