絮凝剂和溶剂对煤焦油净化效果的影响

研究煤焦油净化处理过程中絮凝剂和溶剂对净化效果的影响，确定一种无机絮凝剂为煤焦油净化处理最佳絮凝剂，其最佳用量为8％（絮凝剂／煤焦油），芳香族溶剂洗油的最佳用量为混合液的35wt％～45wt％，脂肪族溶剂煤油的最佳用量为混合液的20wt％～25wt％，净化澄清液QI含量在0．5％左右。     

炭材料生产用浸渍剂沥青的质量指标、制备和改性

综述了浸渍剂沥青所含杂质对浸溃效果的影响,介绍了生产用浸渍剂沥青的制备方法及改性方法。     

过滤精度对煤焦油QI的组成和结构的影响

采用精度为2~5μm和20~40μm的滤芯分别对煤焦油进行热过滤,从得到的滤渣中提取出喹啉不溶物(QI)。然后利用元素分析(EA)、激光粒度仪(LPSA)、扫描电子显微镜/X射线能量色散光谱(SEM/EDS)、傅里叶红外光谱(FT-IR)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)等对所得煤焦油QI组分进行对比分析。结果表明:煤焦油QI组分芳构化程度高,有机物多为稠环类物质并带有很多侧链或杂质原子,同时存在少量石英石、方解石以及煤灰等无机物;当煤焦油热过滤时采用的滤芯精度较低时,最终提取出的QI组分缩聚度相对较高,并且稠环结构中所含侧链和杂原子也相对较少。经精度较低的滤芯热过滤后提取的QI组分中金属杂原子含量相对较高,这些金属杂原子主要存在于大颗粒无机物中,部分存在于小颗粒有机物中。当滤芯精度较高时所得QI组分中主要含酚类、醚类和羧酸类有机物,酮类含量相对较少;反之,QI中则主要含酚类、醚类和酮类有机物。因此,煤焦油热过滤所选的滤芯精度不宜过高,尤其不宜选精度在5μm以下的滤芯。     

Damage and permeability in tape-laid thermoplastic composite cryogenic tanks

This work presents a combined experimental and numerical approach to the design and analysis of tape-laid thermoplastic composite cryogenic tanks. A detailed material and defect characterisation of automated tape-laid CF/PEEK is undertaken using optical micrography and 3D X-ray CT (computed tomography) as well as cryogenic testing to investigate damage formation. Resulting material data is used as input for a novel XFEM (extended finite element method)–cohesive zone methodology which is used to predict intra- and inter-ply damage in an internally pressurised cryogenic tank. An optimised tank lay-up is presented and analysed using the numerical method to ensure resistance to microcrack formation and fuel leakage through the tank walls under operating loads.     

测定低含量喹啉不溶物的试验方法

通过对比试验确定沥育低含量喹啉不溶物试验方法，确定了过滤用古氏坩埚的孔径范围及相应的型号，讨论了助滤剂对测试结果的影响及试验方法的测定原理，规定了测试条件及精密度。     

Quantile induced heavy ordered weighted averaging operators and its application in incentive decision making

To integrate incentives into the information aggregation process in decision making, we propose a new type of aggregation operator, denominated as the quantile induced heavy ordered weighted averaging (QI‐HOWA) operator in this paper. A primary characteristic of this type of operator is that the quantile variable can be used not only to measure the relative performance of alternatives but also to facilitate the incentive preference expression of the decision maker. We further provide a calculation technology of the QI‐HOWA weights, in which various incentive preferences of the decision maker can be considered through parameter adjustment. In addition, we discuss certain properties of the QI‐HOWA operator and note the extent to which they are effective. Finally, a numerical example regarding the selection of optimal alternatives by incentive measures is provided, and the aggregations are compared with those of ordered weighted averaging and unweighted averaging operators to illustrate the validity of the QI‐HOWA operator.     

炭素物料的QI测定

参照GB2293──80“煤沥青喹啉不溶物测定方法”,对煤焦油类物料和煤沥青炭化产物QI测定方法进行了适当改进,并与德国DIN51921──1985标准进行了比较。结果发现DIN5192──1985测试结果偏低,为两类炭素物料的QI含量快速准确测定提出了建议。     

添加表面活性剂对中间相炭微球表面形貌和电性能的影响

通过将中温煤沥青在400~450℃下进行聚合可以得到中间相炭微球(MCMB),但由于中温煤沥青中含有喹啉不溶物(QI),MCMB在生成过程中QI会附着在MCMB表面,造成MCMB表面粗糙,进而影响了MCMB的电化学性能。通过在中温煤沥青中添加表面活性剂可以有效降低MCMB表面能,减少QI的附着,提高MCMB表面光滑度,从而提高了MCMB的电化学性能。     

提高沥青中喹啉不溶物含量的研究

针对煤焦油和沥青中QI含量较低的情况,将来自针状焦项目的 QI残渣与原料焦油按一定比例混合,配制成调制油,采用这种调制油生产中温沥青和改质沥青,提高了产品的QI,显著提高了产品的一级品率。     

煤沥青中原生QI性质分析

利用元素分析、红外光谱、激光粒度仪、原子发射光谱仪等分析手段对攀钢中温煤沥青的原生QI进行了结构组成分析.结果表明,原生QI粒径90%以上小于2 μn,为无定型的微晶乱堆结构,其灰分质量分数达到5.8%.元素分析和红外光谱分析表明,QI有机成分主要为高度缩合的炭黑状物质,金属分析表明无机成分主要由耐火材料粉屑和铁件的氧化物构成.这为原生QI的脱除提供了科学依据.