Characterisation of Feedstocks - D6 Final Report (Phase 1) Appendix 7: Charts comparing all feedstocks

This document compares the composition of all feedstocks in terms of moisture content, net and gross calorific value, dry ash content and its variability, dry nitrogen content, dry chlorine, barium, beryllium, chromium, cobalt, copper, molybdenum, nickel, vanadium, zinc, arsenic, antimony, mercury, cadmium, lead, fluorine, bromine, aluminium, calcium, iron, potassium, manganese, sodium, phosphorus, silicon and titanium content. This document is one of the 13 appendices to the Final Report from the first Phase (2015/16) of the Characterisation of Feedstocks (CofF) project, the primary purpose of which is to provide an understanding of UK produced biomass properties, how these vary and what causes this variability. The purpose of this report plus its related parts is to report the variability in feedstock properties of UK produced energy biomass, the causes of these variationsand the relationship between the feedstock properties and the provenance data collected. Five feedstocks were studied: Miscanthus, willow short rotation coppice (SRC), poplar SRC, poplar grown as short rotation forests (SRF), and spruce SRF, with poplar and Sitka spruce selected to represent broadleaved and coniferous biomass crops respectively. Provenance data include site properties (such as general climate zone and soil chemistry), the conditions at the time of sample collection, and past management of the site and crop with soil samples also collected for analysis. The feedstock samples were analysed in UKAS accredited laboratories.本报告针对全部生物质原料的多项组成指标开展对比分析，涵盖水分含量、净热值与总热值、干灰分含量及其波动特性、干基氮含量，以及干基氯、钡、铍、铬、钴、铜、钼、镍、钒、锌、砷、锑、汞、镉、铅、氟、溴、铝、钙、铁、钾、锰、钠、磷、硅与钛元素含量。 本报告为《原料表征（Characterisation of Feedstocks, CofF）项目第一阶段（2015/16年）最终报告》的13份附录之一，该项目的核心目标是厘清英国本土生产的生物质的各项特性、波动规律及其成因。 本报告及其关联章节的核心宗旨，在于阐明英国本土生产的能源用生物质原料的特性波动情况、波动成因，以及原料特性与所采集的溯源数据之间的关联。 本次研究共涉及5种原料：芒草（Miscanthus）、柳树短轮伐期矮林（willow short rotation coppice, SRC）、杨树短轮伐期矮林（poplar SRC）、短轮伐期人工林杨树（poplar grown as short rotation forests, SRF）以及云杉短轮伐期人工林（spruce SRF）；其中选取杨树与西特卡云杉（Sitka spruce）分别代表阔叶与针叶类生物质作物。 溯源数据包括地块属性（如大致气候分区与土壤化学特性）、样品采集时的现场条件，以及地块与作物的既往经营管理情况，同时还配套采集了土壤样品用于分析检测。 所有生物质原料样品均在英国皇家认可委员会（United Kingdom Accreditation Service, UKAS）认可的实验室完成分析测试。