| 煤泥对石油焦成浆性的影响研究 |
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| 引用本文： | 孙景阳,武源.煤泥对石油焦成浆性的影响研究[J].煤炭工程,2021,53(4):162-165. |
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| 作者姓名： | 孙景阳 武源 |
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| 作者单位： | 中国煤炭科工集团北京华宇工程有限公司 |
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| 摘 要： | 为减轻煤泥和高硫石油焦两种工业副产品对环境的危害，利用水煤浆气化工艺将其资源化利用，以亚甲基双萘磺酸钠(NNO)作为制浆用分散剂与石油焦混合制浆，考察了煤泥添加量对石油焦的成浆浓度、流变性和稳定性的影响。试验结果表明：石油焦具有较好的成浆性，分散剂NNO添加量为干基石油焦质量的0.8%时，石油焦的定黏浓度为67.63%|当煤泥添加量提高到20%时，可制备出定粘浓度68.15%的浆体，浆体由胀塑性转变为假塑性流体，表现出剪切变稀的特性，7d后的析水率仅为4.11%，小于未添加煤泥时的6.56%，煤泥的添加改善了浆体的流变性，提高了浆体的稳定性，有利于浆体的贮存和运输。
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| 关 键 词： | 煤泥 石油焦 成浆性 流变性 稳定性 |
| 收稿时间： | 2020-08-10 |
| 修稿时间： | 2020-09-22 |
Study on the Influence of Coal Slime on the Pulping Property of Petroleum Coke |
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| Abstract: | Abstract：In order to reduce the environmental hazards of two industrial by-products, coal slime and high-sulfur petroleum coke, the coal-water slurry gasification process is used for its resource utilization. Methylene perylene naphthalene sulfonate (NNO) was used as a system. The dispersant for pulp was mixed with petroleum coke for pulping, and the influence of the amount of coal slime addition on the pulping concentration, rheology and stability of petroleum coke was investigated. The test results show that petroleum coke has good slurability. When the amount of dispersant NNO added is 0.8% of the dry base petroleum coke mass, the fixed viscosity concentration of petroleum coke is 67.63%; when the amount of slime is increased to 20% The slurry with a constant viscosity of 68.15% can be prepared. The slurry changes from swelling plasticity to pseudoplastic fluid, showing shear thinning characteristics. The water release rate after 7 days is only 4.11%, which is less than when no slime is added. The addition of slime improves the rheology of the slurry, improves the stability of the slurry, and facilitates the storage and transportation of the slurry. |
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