煤气化细渣疏水-亲水双液炭/灰分离实验
TD982%TD984; 这是一篇矿业工程领域的论文.煤气化细渣是煤气化过程中产生的一种固体废物,其中残炭严重制约了其资源化利用,从煤气化细渣中提取残炭是一个紧迫的问题.本研究应用疏水-亲水双液分离技术来提取煤气化细渣中残碳,其主要的影响因素有搅拌速度、搅拌时间、疏水液体用量、矿浆浓度、矿浆温度和疏水液体种类.疏水-亲水双液分离技术对煤气化细渣有优异的提碳降灰效果,其碳产品的灰分可达30％以下,灰质产品的灰分可达95％以上.通过表征分析揭示了分离机理,结果表明残炭对煤油的吸附强度远超灰质,使得煤油处理过的残炭疏水性大幅度增加,容易被油相捕获.本研究可为煤气化细渣的高效提碳降灰提供重要指导,有助...
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| Published in | 矿产综合利用 Vol. 45; no. 3; pp. 63 - 69 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
太原理工大学矿业工程学院,山西 太原 030024%太原理工大学煤科学与技术教育部与山西省重点实验室,山西 太原 030024
2024
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-6532 |
| DOI | 10.3969/j.issn.1000-6532.2024.03.010 |
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| Abstract | TD982%TD984; 这是一篇矿业工程领域的论文.煤气化细渣是煤气化过程中产生的一种固体废物,其中残炭严重制约了其资源化利用,从煤气化细渣中提取残炭是一个紧迫的问题.本研究应用疏水-亲水双液分离技术来提取煤气化细渣中残碳,其主要的影响因素有搅拌速度、搅拌时间、疏水液体用量、矿浆浓度、矿浆温度和疏水液体种类.疏水-亲水双液分离技术对煤气化细渣有优异的提碳降灰效果,其碳产品的灰分可达30％以下,灰质产品的灰分可达95％以上.通过表征分析揭示了分离机理,结果表明残炭对煤油的吸附强度远超灰质,使得煤油处理过的残炭疏水性大幅度增加,容易被油相捕获.本研究可为煤气化细渣的高效提碳降灰提供重要指导,有助于实现煤气化固废的综合利用. |
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| AbstractList | TD982%TD984; 这是一篇矿业工程领域的论文.煤气化细渣是煤气化过程中产生的一种固体废物,其中残炭严重制约了其资源化利用,从煤气化细渣中提取残炭是一个紧迫的问题.本研究应用疏水-亲水双液分离技术来提取煤气化细渣中残碳,其主要的影响因素有搅拌速度、搅拌时间、疏水液体用量、矿浆浓度、矿浆温度和疏水液体种类.疏水-亲水双液分离技术对煤气化细渣有优异的提碳降灰效果,其碳产品的灰分可达30％以下,灰质产品的灰分可达95％以上.通过表征分析揭示了分离机理,结果表明残炭对煤油的吸附强度远超灰质,使得煤油处理过的残炭疏水性大幅度增加,容易被油相捕获.本研究可为煤气化细渣的高效提碳降灰提供重要指导,有助于实现煤气化固废的综合利用. |
| Abstract_FL | This is an article in the field of mining engineering.Coal gasification slag is a type of solid waste generated during the coal gasification process.The presence of residual carbon significantly limits its potential for reuse and recycling.Therefore,the extraction of residual carbon from coal gasification slag is a pressing concern.In this research,the separation of residual carbon and inorganic minerals from gasification fine slag was studied by hydrophobic-hydrophilic separation technology.The effects of stirring speed,stirring time,hydrophobic liquid dosage,pulp concentration,pulp temperature,and hydrophobic liquid type on the separation effect of carbon/ash were investigated.The hydrophobic-hydrophilic separation technology has excellent carbon extraction and ash reduction effect on coal gasification slag,and the ash content of its carbon product can be up to 30％or less,while that of the ash product can be up to 95％or more.The separation mechanism was revealed by the characterisation analysis,which showed that the adsorption strength of residual carbon on paraffin was much higher than that of ash,which made the kerosene-treated residual carbon hydrophobicity greatly increased and easy to be captured by the oil phase.This study can provide important guidance for the efficient carbon extraction and ash reduction of coal gasification fine residue,which can help to achieve the comprehensive utilisation of coal gasification solid waste. |
| Author | 樊民强 董连平 薛中华 王建成 杨崇义 鲍卫仁 |
| AuthorAffiliation | 太原理工大学矿业工程学院,山西 太原 030024%太原理工大学煤科学与技术教育部与山西省重点实验室,山西 太原 030024 |
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| Author_FL | XUE Zhonghua WANG Jiancheng BAO Weiren DONG Lianping YANG Chongyi FAN Minqiang |
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| DocumentTitle_FL | Extraction of Carbon from Fine Coal Gasification Slag by Hydrophobic-hydrophilic Separation |
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| Keywords | Hydrophobic liquid 疏水液体 Coal gasification fine slag 团聚 Mining engineering 煤气化细渣 Agglomeration 矿业工程 Hydrophobic-hydrophilic separation 疏水-亲水双液分选 |
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| Title | 煤气化细渣疏水-亲水双液炭/灰分离实验 |
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