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- This article deals with the kinetics of thermal decomposition process of non-coking coal with modified coal tar pitch used in a steel company. 本文对国内某钢铁公司焦化厂所用的非焦煤配改质沥青的分解过程进行了动力学研究。
- Differential scanning calorimetry (DSC) and simultaneous thermal analysis (TG, DTA) are employed to study on thermal behavior of the modified coal tar pitch. 采用差示扫描量热法 (DSC)和热重 -差热分析 (TG DTA)对改性前后的煤沥青进行热行为分析。
- The plastometer thickness of No.2 coking coal and 1/3 coking coal increased dramatically by adding modified coal tar pitch, meanwhile, the coal caking indexes increased dramatically. 随着改质沥青的加入,焦2煤和1/3焦煤的胶质层厚度显著增加,焦2煤的粘结性指数也显著增加。
- The viscous flow activation energy of modified coal tar pitches markedly increases with rise of TS content,and pre-exponential factor A decreases. 随温度的升高或剪切速率的增加,改性媒沥青的粘度降低:随TS含量增加,改性煤沥青的流动活化能厂变小、指前因子A变大; 煤沥青在改性过程中可通过工艺的调整来控制煤沥青的粘度,以满足不同的使用要求。
- STUDY ON NON-ISOTHERMAL KINETICS FOR MODIFIED COAL TAR PITCH 煤沥青改质非等温动力学研究
- modified coal tar pitch 改质沥青
- High quality modified pitch for carbon materials were prepared from medium-temperature coal tar pitch with an acid(PTS)as catalyst and with divinylbenzene(DVB) as cross-linking agent. 以二乙烯基苯(DVB)为交联剂,在对甲苯磺酸(PTS)的作用下对中温煤沥青进行改性,制备出性能优良的炭材料用改性沥青,并对改性沥青的性能进行表征。
- Mesophase microbeads were prepared from coal tar pitch by thermal condensation in atmospheric pressure. 以煤焦油沥青为原料采用常压热缩聚工艺制备中间相沥青微球。
- Carbon foams were prepared from coal tar pitch, petroleum mesophase pitch, and AR pitch. 分别以煤沥青、石油中间相沥青和AR沥青为前驱体制备炭泡沫材料。
- The structure change of medium coal tar pitch(MCTP) during co-carbonization was investigated by using NMR. 使用一种工业重质油和中温煤焦油沥青进行共炭化反应,改善了煤沥青的炭化性质。
- The results show that coal tar pitch and terephthalic aldehyde can be used to synthesize COPNA resin. 结果表明,煤沥青能够与对苯二甲醛合成COPNA树脂,其反应机理为酸催化下的阳离子型缩聚反应;
- Coal tar pitch was modified by adding pyridine borane.The effect of reaction conditions on the properties and components of modified pitches was investigated. 以吡啶硼烷为添加剂对煤焦油沥青进行改性,考察了工艺条件(硼添加量,反应温度,反应时间)对改性沥青软化点、残炭值及其族组成的影响。
- Coal tar pitch was modified by adding pyridine-borane.The effectof reaction conditions on the properties and components of modified pitches was investigated. 以吡啶硼烷为添加剂对煤焦油沥青进行改性,考察了工艺条件(硼添加量,反应温度,反应时间)对改性沥青软化点、残炭值及其族组成的影响。
- Abstract: Coal tar pitch was modified by adding pyridine-borane.The effect of reaction conditions on the properties and components of modified pitches was investigated. 摘 要: 以吡啶硼烷为添加剂对煤焦油沥青进行改性,考察了工艺条件(硼添加量,反应温度,反应时间)对改性沥青软化点、残炭值及其族组成的影响。
- Boron-substituted polyaromatic mesophase was prepared by co-pyrolysis of a coal tar pitch with pyridine-borane complex under autogeneous pressure. 以煤焦油沥青和吡啶硼烷为原料采用加压热缩聚工艺制备硼取代聚芳烃中间相沥青。
- Modification of coal tar pitch(CTP) as carbon materials was studied using 4-methyl benzaldehyde(4-MB) as modifier by an acid catalyst. 以对甲基苯甲醛(4-methyl benzaldehyde,简称4-MB)为改性剂,在对甲苯磺酸(PTS)的作用下对煤沥青进行了改性研究。
- An experiment and research on cold briquetting coke was conducted with anthracite coal blended with lean coal and fine coking coal and with residuum of modified coal tar oil as the binder. 摘要对无烟煤配入瘦煤和焦粉,用改性焦油洗油残渣做黏结剂,制备冷压型焦进行了试验研究。
- Distilling the low temperature coal tar pitch before coking tests, get the pitch with different volatile at different temperature. 在炼焦实验之前,将低温煤焦油进行了蒸馏,通过不同的蒸馏温度得到挥发分不同的沥青。
- Modification of coal tar pitch as a carbon precursor was studied using divinylbenzene (DVB) as a cross linking agent by the aid of acid catalyst. 首次以二乙烯基苯为交联剂,在酸性催化剂的作用下对煤沥青进行了改性研究,同时对改性后的煤沥青进行显微结构和耐热性分析。
- Needle coke was prepared through the co-carbonization of toluene soluble fraction (TS) of coal tar pitch and waste polystyrene (WPS) in a tube bomb. 摘要采用煤焦油沥青的甲苯可溶物和废聚苯乙烯共碳化制备针状焦,考察了中间相沥青中烷基含量对针状焦性能的影响。