Department of Chemical Engineering, University College London, London, WC1E 7JE, Great Britain, United Kingdom.
Waste Manag. 2012 Apr;32(4):676-84. doi: 10.1016/j.wasman.2011.08.020. Epub 2011 Oct 6.
Gasification of solid waste for energy has significant potential given an abundant feed supply and strong policy drivers. Nonetheless, significant ambiguities in the knowledge base are apparent. Consequently this study investigates sulphur mechanisms within a novel two stage fluid bed-plasma gasification process. This paper includes a detailed review of gasification and plasma fundamentals in relation to the specific process, along with insight on MSW based feedstock properties and sulphur pollutant therein. As a first step to understanding sulphur partitioning and speciation within the process, thermodynamic modelling of the fluid bed stage has been performed. Preliminary findings, supported by plant experience, indicate the prominence of solid phase sulphur species (as opposed to H(2)S) - Na and K based species in particular. Work is underway to further investigate and validate this.
鉴于丰富的饲料供应和强有力的政策驱动，固体废物的气化用于能源具有巨大的潜力。然而，知识基础中明显存在着重大的不明确性。因此，本研究调查了新型两段流化床-等离子体气化过程中的硫机制。本文详细回顾了与特定工艺相关的气化和等离子体基础，以及有关基于 MSW 的原料特性及其所含硫污染物的见解。作为理解过程中硫分配和形态的第一步，已经对流化床阶段进行了热力学建模。初步研究结果得到工厂经验的支持，表明固体相硫物种（而不是 H(2)S）的突出性-特别是基于 Na 和 K 的物种。正在进行进一步研究和验证。
