CN114768504B - 一种高效熔硫工艺 - Google Patents
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Abstract
本发明涉及一种高效熔硫工艺,其特点在于:用碱液将水煤气中含硫组份经脱硫塔吸收反应形成富液,通过带自吸喷射器的再生槽再生,在再生槽中形成硫泡沫溢流至硫泡沫槽,再生好的清液溢流至贫液槽循环使用,硫泡沫经硫泡沫泵输送至过滤器,对含有部分清液的硫泡沫过滤,实现提质增浓的目的,再将增浓硫泡沫用泵打至熔硫釜进行熔硫,清液循环利用。该工艺能降低硫泡沫循环量,延缓副盐上升速率,降低副盐生成量,清液循环使用,大大提高熔硫质量和熔硫回收率。
Description
技术领域
本发明属于化工领域,具体涉及一种高效熔硫工艺。
背景技术
化工行业中,常采用湿法脱硫工艺对水煤气等含硫气体脱除硫化物,该工艺对脱除硫化物的再回收非常重要。现有熔硫工艺将再生槽溢流硫泡沫回收直接通过熔硫釜熔硫,此工艺中硫泡沫溢流自身夹带碱液较多,熔硫釜循环量大,造成回收熔硫清液量较大,经熔硫釜高温加热导致清液副盐生成快,每年碱液外排置换量大,同时熔硫质量下降,硫磺回收率低。
发明内容
本发明的目的是为解决上述问题,提供一种高效熔硫工艺。
为实现上述目的,本发明采取的技术方案为:一种高效熔硫工艺,其特征在于:采用熔硫装置实现脱硫熔硫;
所述熔硫装置为:脱硫塔底部出液口连接富液槽,富液槽底部出液口通过富液泵接入再生槽的喷射器,再生槽上部溢流口连接硫泡沫槽,再生槽上部清液口接入贫液槽,硫泡沫槽底部泡沫管通过硫泡泵连接过滤器,过滤器底部出口接入中间罐,中间罐下部浓泡管通过浓泡泵接入熔硫釜,熔硫釜上部出液口连接冷却槽,冷却槽下部出口接入二号储存池;
具体工艺包括如下步骤:
a.水煤气从塔底进入脱硫塔,与塔顶喷淋碱液逆流经传质传热,吸收水煤气中含硫物质,形成富液从塔底进入富液槽;
b. 再用泵将富液经再生槽喷射器进入再生槽,经氧化再生,形成的硫泡沫从再生槽顶部溢流进入硫泡沫槽,清液从再生槽底部返回贫液槽;
c. 将硫泡沫用泵输送至过滤器中进行提质增浓,过滤压力控制为1~100KPa(a),根据过滤碱液中悬浮硫含量,对过滤器控制步序进行调整,经过提质增浓硫泡沫回收至中间槽,顶部清液进入贫液槽循环使用;
d.将中间槽的提质增浓硫泡沫用泵输送至熔硫釜中加热熔硫,熔出硫磺从熔硫釜底部放出形成硫饼,作为副产品;熔硫清液从熔硫釜顶进入冷却槽,经冷却沉降分离后进入二号储存池,再抽入贫液槽循环使用。
所述过滤器上部设有清液管,清液管接入贫液槽;所述过滤器下部设有反冲液管,反冲液管接入一号储存池。
所述泡沫管上还连接故障管和 紧急管,故障管接入一号储存池,紧急管连接浓泡管。
步骤c中所述提质增浓分为进液、清液回流、过滤、反冲、沉降、排渣六个步序;各步序时间控制为:进液控制在40-60秒,清液回流30-50秒,过滤1000-2000秒,反冲30-50秒,沉降8-120秒,排查10-20秒;所述对过滤器控制步序进行调整,具体为:当悬浮硫高于0.5g/l时,将过滤时间缩短,反冲时间延长5-10秒;当悬浮硫低于0.5g/l 时,将过滤周期逐步延长,反冲时间缩短5-10秒。
步骤d中,熔硫釜内温度控制为120-135℃,压力为0-0.4MPa,塔顶出口温度控制在80-90℃。
本发明原理:用碱液将水煤气中含硫组份经脱硫塔吸收反应形成富液,通过带自吸喷射器的再生槽再生,在再生槽中形成硫泡沫溢流至硫泡沫槽,再生好的清液溢流至贫液槽循环使用,硫泡沫泵至戈尔过滤器,对含有部分清液的硫泡沫过滤,实现提质增浓的目的,再将增浓硫泡沫泵至熔硫釜进行熔硫,清液循环利用。
本发明的有益效果是:实现了对硫泡沫的提质增浓分离后连续熔硫,装置中设置硫泡沫过滤器,对硫泡沫过滤,达到提质增浓,降低硫泡沫循环量,熔硫硫泡沫中夹带碱液量降低50%,在提高熔硫效率和硫磺质量的同时,降低蒸汽用量,有效节约了蒸汽消耗成本;通过降低熔硫硫泡沫夹带碱液量和增加熔硫清液冷却系统,延缓副盐上升速率,延长碱液使用寿命,降低碱液外排量,实现安全、环保、连续熔硫目的。
附图说明
图1为本发明工艺流程图;
图中:1- 脱硫塔,2-富液槽,3-富液泵,4-再生槽,5-硫泡沫槽,6-贫液槽,7-硫泡泵,8-戈尔过滤器,9-中间罐, 10-熔硫釜,11-冷却槽,12-浓泡泵,13- 一号储存池,14-二号储存池;
A-清液管,B-泡沫管,B1-故障管,B2-紧急管,C-反冲液管,D-浓泡管。
具体实施方式
实施例1,见图1,
工作过程:水煤气从塔底进入脱硫塔1,与塔顶喷淋碱液逆流经传质传热,吸收水煤气中含硫物质,形成富液从塔底进入富液槽2,再用富液泵3将富液经再生槽喷射器进入再生槽4,在再生槽中再生,再生槽4底部清液进入贫液槽6回收循环利用,硫泡沫从再生槽4顶部溢流进入硫泡沫槽5,收集的硫泡沫用硫泡泵7输送至过滤器8,经过滤器8过滤的硫泡沫进入中间槽9,将提质增浓硫泡沫用浓泡泵12输送至熔硫釜10进行熔硫,釜底回收硫磺,熔硫釜10塔顶清液经冷却槽11冷却后清液回收至二号储存池14,再抽去贫液槽6循环利用。
过滤器8的过滤清液和反冲液回收利用:过滤清液经清液管A进入贫液槽6,反冲液经反冲液管C进入一号储存池13,用泵输送至熔硫釜10继续熔硫,保证熔硫系统连续稳定运行。
当过滤器8发生故障,有计划进行维修,时间较长时投用故障管B1,将硫泡沫直接进入一号储存池13;当过滤器8突发故障,且硫泡沫量较多时,打开紧急管B2上的控制阀,经浓泡管D进入熔硫釜10进行熔硫。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (5)
1.一种高效熔硫工艺,其特征在于:采用熔硫装置实现脱硫熔硫;
所述熔硫装置为:脱硫塔(1)底部出液口连接富液槽(2),富液槽(2)底部出液口通过富液泵(3)接入再生槽(4)的喷射器,再生槽(4)上部溢流口连接硫泡沫槽(5),再生槽(4)上部清液口接入贫液槽(6),硫泡沫槽(5)底部泡沫管(B)通过硫泡泵(7)连接过滤器(8),过滤器(8)底部出口接入中间罐(9),中间罐(9)下部浓泡管(D)通过浓泡泵(12)接入熔硫釜(10),熔硫釜(10)上部出液口连接冷却槽(11),冷却槽(11)下部出口接入二号储存池(14);
具体工艺包括如下步骤:
a.水煤气从塔底进入脱硫塔(1),与塔顶喷淋碱液逆流经传质传热,吸收水煤气中含硫物质,形成富液从塔底进入富液槽(2);
b. 再用泵将富液经再生槽喷射器进入再生槽(4),经氧化再生,形成的硫泡沫从再生槽顶部溢流进入硫泡沫槽(5),清液从再生槽(4)底部返回贫液槽(6);
c. 将硫泡沫用泵输送至过滤器(8)中进行提质增浓,过滤压力控制为1~100KPa(a),根据过滤碱液中悬浮硫含量,对过滤器控制步序进行调整,经过提质增浓硫泡沫回收至中间罐(9),顶部清液进入贫液槽(6)循环使用;
d.将中间罐(9)的提质增浓硫泡沫用泵输送至熔硫釜(10)中加热熔硫,熔出硫磺从熔硫釜底部放出形成硫饼,作为副产品;熔硫清液从熔硫釜顶进入冷却槽(11),经冷却沉降分离后进入二号储存池(14),再抽入贫液槽(6)循环使用。
2.如权利要求1所述的一种高效熔硫工艺,其特征在于:所述过滤器(8)上部设有清液管(A),清液管(A)接入贫液槽(6);所述过滤器(8)下部设有反冲液管(C),反冲液管(C)接入一号储存池(13)。
3.如权利要求1所述的一种高效熔硫工艺,其特征在于:所述泡沫管(B)上还连接故障管(B1)和 紧急管(B2),故障管(B1)接入一号储存池(13),紧急管(B2)连接浓泡管(D)。
4.如权利要求1所述的一种高效熔硫工艺,其特征在于:步骤c中所述提质增浓分为进液、清液回流、过滤、反冲、沉降、排渣六个步序;各步序时间控制为:进液控制在40-60秒,清液回流30-50秒,过滤1000-2000秒,反冲30-50秒,沉降8-120秒,排查10-20秒;所述对过滤器控制步序进行调整,具体为:当悬浮硫高于0.5g/l 时,将过滤时间缩短,反冲时间延长5-10秒;当悬浮硫低于0.5g/l 时,将过滤周期逐步延长,反冲时间缩短5-10秒。
5.如权利要求1所述的一种高效熔硫工艺,其特征在于:步骤d中,熔硫釜内温度控制为120-135℃,压力为0-0.4MPa,塔顶出口温度控制在80-90℃。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62183835A (ja) * | 1985-10-11 | 1987-08-12 | ウ−テ−ベ−・ウムベルトテクニク・ブクス・ア−ゲ− | 硫化水素含有ガスの脱硫方法および装置 |
CN207404839U (zh) * | 2017-10-19 | 2018-05-25 | 云南鼎和环保科技有限公司 | 一种湿法脱硫工艺中从硫泡沫液中回收硫的装置 |
CN110331009A (zh) * | 2019-07-19 | 2019-10-15 | 北京优艺康光学技术有限公司 | 一种硫泡沫及脱硫液过滤分离工艺 |
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JPS62183835A (ja) * | 1985-10-11 | 1987-08-12 | ウ−テ−ベ−・ウムベルトテクニク・ブクス・ア−ゲ− | 硫化水素含有ガスの脱硫方法および装置 |
CN207404839U (zh) * | 2017-10-19 | 2018-05-25 | 云南鼎和环保科技有限公司 | 一种湿法脱硫工艺中从硫泡沫液中回收硫的装置 |
CN110331009A (zh) * | 2019-07-19 | 2019-10-15 | 北京优艺康光学技术有限公司 | 一种硫泡沫及脱硫液过滤分离工艺 |
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