CN102559264A - 一种利用块状炉渣生产半水煤气的方法 - Google Patents

一种利用块状炉渣生产半水煤气的方法 Download PDF

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Publication number
CN102559264A
CN102559264A CN201210021605XA CN201210021605A CN102559264A CN 102559264 A CN102559264 A CN 102559264A CN 201210021605X A CN201210021605X A CN 201210021605XA CN 201210021605 A CN201210021605 A CN 201210021605A CN 102559264 A CN102559264 A CN 102559264A
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water gas
furnace slag
slag
block slag
semi
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蒋远华
杨晓勤
张道红
武丽华
卢光胜
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Hubei Shuanghuan Science and Technology Stock Co Ltd
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Hubei Shuanghuan Science and Technology Stock Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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    • Y02P20/00Technologies relating to chemical industry
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Abstract

本发明提供了一种利用块状炉渣生产半水煤气的方法,它是将型煤投入固定床间歇式气化炉进行煤气化生产半水煤气,其特征在于:收集大小为15-50mm的块状炉渣,将块状炉渣与型煤一起投入固定床间歇式气化炉进行煤气化。本发明利用块状炉渣入炉返烧可以增厚气化层,增加气化层储存高温显热的能力,提高蒸汽分解率,降低炉渣残炭。同时块状炉渣入炉返烧,还可以降低上行温度,使飞灰量下降,煤气硫含量下降,半水煤气的质量好,产气量高,节省了能源,具有很强的实用性。

Description

一种利用块状炉渣生产半水煤气的方法
技术领域
本发明涉及半水煤气的生产方法技术领域,具体是指一种利用块状炉渣生产半水煤气的方法。
背景技术
近年来,由于无烟块煤、焦炭价格攀升,众多以固定床间歇式气化炉进行煤气化的企业为了生存和发展,纷纷采用型煤代替无烟块煤、焦炭进行煤气化,生产半水煤气。但是型煤的发热量及堆积密度偏低,其中发热量仅相当于冶金焦炭或优质块煤的70-80%,而堆积密度仅相当于块煤的75%。因此改烧煤棒后,会造成气化层内部高温显热储存能力下降,高温显热损失上升,煤气质量变差,CO2含量往往在9-12%,产气量低,炉渣残炭量高达20-30%,造成了资源的严重浪费。
发明内容
本发明的目的是根据上述不足提供一种利用块状炉渣生产半水煤气的方法,该方法产气量高、炉渣残炭量低,可以节省资源。
本发明是通过如下技术方案实现的:一种利用块状炉渣生产半水煤气的方法,它是将型煤投入固定床间歇式气化炉进行煤气化生产半水煤气,收集大小为15-50mm的块状炉渣,将块状炉渣与型煤一起投入固定床间歇式气化炉进行煤气化。
所述块状炉渣与型煤也可以混合投入固定床间歇式气化炉进行煤气化,块状炉渣与型煤的质量比为2-6∶100。
最优的,所述块状炉渣与型煤可以分批投入固定床间歇式气化炉进行煤气化,块状炉渣与型煤的质量比为1∶16-18。
本发明利用块状炉渣入炉返烧可以增厚气化层,增加气化层储存高温显热的能力,提高蒸汽分解率,降低炉渣残炭。同时块状炉渣入炉返烧,还可以降低上行温度,使飞灰量下降,煤气硫含量下降,半水煤气的质量好,产气量高,节省了能源,具有很强的实用性。
具体实施方式
以下结合具体实施例来进一步说明本发明:
实施例1
收集大小为15-50mm的块状炉渣,将块状炉渣与型煤按照质量比为1∶16分三批投入固定床间歇式气化炉进行煤气化。块状炉渣入炉返烧可以增厚气化层,增加气化层储存高温显热的能力,提高蒸汽分解率,使炉渣残炭量降低了15%。
实施例2
收集大小为15-50mm的块状炉渣,将块状炉渣与型煤按照质量比为1∶18分三批投入固定床间歇式气化炉进行煤气化。块状炉渣入炉返烧可以增厚气化层,增加气化层储存高温显热的能力,提高蒸汽分解率,使炉渣残炭量降低了14.5%。
实施例3
收集大小为15-50mm的块状炉渣,将块状炉渣与型煤按照质量比为1∶16、1∶17、1∶18分三批投入固定床间歇式气化炉进行煤气化。块状炉渣入炉返烧可以增厚气化层,增加气化层储存高温显热的能力,提高蒸汽分解率,使炉渣残炭量降低了15.5%。
实施例4
收集大小为15-50mm的块状炉渣,将块状炉渣与型煤按照质量比为2∶100混合后投入固定床间歇式气化炉进行煤气化。块状炉渣入炉返烧可以增厚气化层,增加气化层储存高温显热的能力,提高蒸汽分解率,使炉渣残炭量降低了13%。
实施例5
收集大小为15-50mm的块状炉渣,将块状炉渣与型煤按照质量比为4∶100混合后投入固定床间歇式气化炉进行煤气化。块状炉渣入炉返烧可以增厚气化层,增加气化层储存高温显热的能力,提高蒸汽分解率,使炉渣残炭量降低了14%。
实施例6
收集大小为15-50mm的块状炉渣,将块状炉渣与型煤按照质量比为6∶100混合后投入固定床间歇式气化炉进行煤气化。块状炉渣入炉返烧可以增厚气化层,增加气化层储存高温显热的能力,提高蒸汽分解率,使炉渣残炭量降低了13.5%。

Claims (3)

1.一种利用块状炉渣生产半水煤气的方法,它是将型煤投入固定床间歇式气化炉进行煤气化生产半水煤气,其特征在于:收集大小为15-50mm的块状炉渣,将块状炉渣与型煤一起投入固定床间歇式气化炉进行煤气化。
2.根据权利要求1所述利用块状炉渣生产半水煤气的方法,其特征在于:所述块状炉渣与型煤混合投入固定床间歇式气化炉进行煤气化,块状炉渣与型煤的质量比为2-6∶100。
3.根据权利要求1所述利用块状炉渣生产半水煤气的方法,其特征在于:所述块状炉渣与型煤分批投入固定床间歇式气化炉进行煤气化,块状炉渣与型煤的质量比为1∶16-18。
CN201210021605XA 2012-01-31 2012-01-31 一种利用块状炉渣生产半水煤气的方法 Pending CN102559264A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102952600A (zh) * 2012-11-19 2013-03-06 煤炭科学研究总院 一种加压气化炉型煤、其制备方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2302397A (en) * 1995-06-20 1997-01-15 Joseph E Doumet Utilising heat from molten slag to produce fuel gas from coal
CN101480659A (zh) * 2009-01-23 2009-07-15 智胜化工股份有限公司 煤气化炉渣处理残碳自动回收方法
CN101597657A (zh) * 2009-07-10 2009-12-09 东北大学 一种高炉熔渣复合煤气化系统及方法
CN101608134A (zh) * 2008-06-20 2009-12-23 王守信 倾斜式燃煤气化炉

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2302397A (en) * 1995-06-20 1997-01-15 Joseph E Doumet Utilising heat from molten slag to produce fuel gas from coal
CN101608134A (zh) * 2008-06-20 2009-12-23 王守信 倾斜式燃煤气化炉
CN101480659A (zh) * 2009-01-23 2009-07-15 智胜化工股份有限公司 煤气化炉渣处理残碳自动回收方法
CN101597657A (zh) * 2009-07-10 2009-12-09 东北大学 一种高炉熔渣复合煤气化系统及方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102952600A (zh) * 2012-11-19 2013-03-06 煤炭科学研究总院 一种加压气化炉型煤、其制备方法及装置

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Application publication date: 20120711