CN110157463A - 一种汽油脱硫方法 - Google Patents

一种汽油脱硫方法 Download PDF

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CN110157463A
CN110157463A CN201810263525.2A CN201810263525A CN110157463A CN 110157463 A CN110157463 A CN 110157463A CN 201810263525 A CN201810263525 A CN 201810263525A CN 110157463 A CN110157463 A CN 110157463A
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张成如
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Shandong Lianxing Energy Group Co Ltd
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Abstract

本发明属于汽油脱硫技术领域，具体涉及一种汽油脱硫方法。该汽油脱硫方法，包括以下步骤：1).将活性炭浸渍至高锰酸钾溶液内进行氧化处理，并烘干备用；2）将氧化处理后的活性炭与氧化铝和二氧化硅进行混合制得载体混合物；3）将步骤2）中制得的载体混合物中加入碳酸钾和氧化铝，并浸渍硝酸铜溶液，制得脱硫吸附剂；4）量取步骤3）中制得的脱硫吸附剂100mL 装填于脱硫反应器中进行脱硫。其有益效果是：本发明一种汽油脱硫方法操作简单，可在对被处理物流的辛烷值影响最小的情况下从裂化汽油中脱除硫，具有很高的脱硫活性和抗磨强度，同时还具有明显的增加汽油辛烷值的优势。

Description

一种汽油脱硫方法
技术领域
本发明属于汽油脱硫技术领域，具体涉及一种汽油脱硫方法。
背景技术
汽油中硫化物的存在形式有硫化氢、硫醇、硫醚、二硫化物、噻吩、二硫化物、噻吩及其衍生物。这些硫化物不仅会导致汽油氧化安定性变差、辛烷值下降和发动机燃系统的腐蚀，而且燃烧后生成的硫氧化物是大气污染的主要污染物。随着世界各国对于环境问题的重视，车用汽油中的硫所造成的污染问题已经越来越受到关注。汽油脱硫方法主要分加氢脱硫和非加氢脱硫两类。加氢脱硫虽能满足汽油低硫的要求，但是该技术需耗费大量的氢气，易引起辛烷值的降低，且在高温高压下进行，设备投资和操作费用非常昂贵，尤其对燃料油中含有的大分子稠环噻吩类硫化物衍生物的脱除非常困难。非加氢脱硫技术主要包括吸附脱硫、生物脱硫、氧化脱硫以及膜分离技术等。吸附脱硫技术以其设备投资低、脱硫率高、不耗氢、吸附剂价格较低等优点，具有较大的发展空间及应用潜力。吸附法用于汽油脱硫时，吸附剂可以选择性地脱除汽油中的芳烃类含硫化合物，而且对于汽油中的烯烃无影响，避免了加氢精制过程中，为保证脱硫效果而造成的大量烯烃被加氢饱和，致使汽油辛烷值下降的问题。正因为如此，吸附脱硫方式的应用越来越引起人们的关注，成为国内外各大石油公司研究与开发的重点课题之一。
发明内容
本发明为了弥补现有技术的缺陷，提供了一种汽油脱硫方法。
本发明是通过如下技术方案实现的：
一种汽油脱硫方法，包括以下步骤：
1).将活性炭浸渍至高锰酸钾溶液内进行氧化处理，并烘干备用；
2）将氧化处理后的活性炭与氧化铝和二氧化硅进行混合制得载体混合物；
3）将步骤2）中制得的载体混合物中加入碳酸钾和氧化铝，并浸渍硝酸铜溶液，然后升温到110～150℃保温反应1-3h，并过滤，洗涤，干燥，450℃焙烧1～3h，制得脱硫吸附剂；
4）量取步骤3）中制得的脱硫吸附剂100mL 装填于脱硫反应器中进行脱硫，其中脱硫反应温度为：180℃±1℃，压力为常压。
本发明的有益效果是：本发明一种汽油脱硫方法操作简单，可在对被处理物流的辛烷值影响最小的情况下从裂化汽油中脱除硫，具有很高的脱硫活性和抗磨强度，同时还具有明显的增加汽油辛烷值的优势。
具体实施方式
以下给出本发明的具体实施例，用来对本发明的构成进行进一步说明。
实施例1
本发明一种汽油脱硫方法，包括以下步骤：
1).将活性炭浸渍至高锰酸钾溶液内进行氧化处理，并烘干备用；
2）将氧化处理后的活性炭与氧化铝和二氧化硅进行混合制得载体混合物；
3）将步骤2）中制得的载体混合物中加入碳酸钾和氧化铝，并浸渍硝酸铜溶液，然后升温到110℃保温反应1h，并过滤，洗涤，干燥，450℃焙烧1h，制得脱硫吸附剂；
4）量取步骤3）中制得的脱硫吸附剂100mL 装填于脱硫反应器中进行脱硫，其中脱硫反应温度为：180℃±1℃，压力为常压。
实施例2
本发明一种汽油脱硫方法，包括以下步骤：
1).将活性炭浸渍至高锰酸钾溶液内进行氧化处理，并烘干备用；
2）将氧化处理后的活性炭与氧化铝和二氧化硅进行混合制得载体混合物；
3）将步骤2）中制得的载体混合物中加入碳酸钾和氧化铝，并浸渍硝酸铜溶液，然后升温到120℃保温反应2h，并过滤，洗涤，干燥，450℃焙烧2h，制得脱硫吸附剂；
4）量取步骤3）中制得的脱硫吸附剂100mL 装填于脱硫反应器中进行脱硫，其中脱硫反应温度为：180℃±1℃，压力为常压。
实施例3
本发明一种汽油脱硫方法，包括以下步骤：
1).将活性炭浸渍至高锰酸钾溶液内进行氧化处理，并烘干备用；
2）将氧化处理后的活性炭与氧化铝和二氧化硅进行混合制得载体混合物；
3）将步骤2）中制得的载体混合物中加入碳酸钾和氧化铝，并浸渍硝酸铜溶液，然后升温到150℃保温反应3h，并过滤，洗涤，干燥，450℃焙烧3h，制得脱硫吸附剂；
4）量取步骤3）中制得的脱硫吸附剂100mL 装填于脱硫反应器中进行脱硫，其中脱硫反应温度为：180℃±1℃，压力为常压。
本发明不局限于上述实施方式，任何人应得知在本发明的启示下作出的与本发明具有相同或相近的技术方案，均落入本发明的保护范围之内。
本发明未详细描述的技术、形状、构造部分均为公知技术。

Claims (2)

1.一种汽油脱硫方法，其特征在于，包括以下步骤：
1).将活性炭浸渍至高锰酸钾溶液内进行氧化处理，并烘干备用；
2)将氧化处理后的活性炭与氧化铝和二氧化硅进行混合制得载体混合物；
3)将步骤2)中制得的载体混合物中加入碳酸钾和氧化铝，并浸渍硝酸铜溶液，然后升温到110～150℃保温反应1-3h，并过滤，洗涤，干燥，450℃焙烧1～3h，制得脱硫吸附剂；
4)量取步骤3)中制得的脱硫吸附剂100mL装填于脱硫反应器中进行脱硫，其中脱硫反应温度为：180℃±1℃，压力为常压。
2.根据权利要求1所述的一种汽油脱硫方法，其特征是：包括以下步骤：
1).将活性炭浸渍至高锰酸钾溶液内进行氧化处理，并烘干备用；
2)将氧化处理后的活性炭与氧化铝和二氧化硅进行混合制得载体混合物；
3)将步骤2)中制得的载体混合物中加入碳酸钾和氧化铝，并浸渍硝酸铜溶液，然后升温到120℃保温反应2h，并过滤，洗涤，干燥，450℃焙烧2h，制得脱硫吸附剂；
4)量取步骤3)中制得的脱硫吸附剂100mL装填于脱硫反应器中进行脱硫，其中脱硫反应温度为：180℃±1℃，压力为常压。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1594505A (zh) * 2004-06-18 2005-03-16 中国石油化工集团公司 一种汽油吸附脱硫方法
CN1994567A (zh) * 2006-12-20 2007-07-11 中国科学院山西煤炭化学研究所 一种加氢催化剂的预硫化方法
CN101323795A (zh) * 2008-07-15 2008-12-17 西南石油大学 一种汽油脱硫吸附剂的制备方法
CN101804325A (zh) * 2010-04-22 2010-08-18 上海化工研究院 一种改性活性炭吸附脱硫剂的制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1594505A (zh) * 2004-06-18 2005-03-16 中国石油化工集团公司 一种汽油吸附脱硫方法
CN1994567A (zh) * 2006-12-20 2007-07-11 中国科学院山西煤炭化学研究所 一种加氢催化剂的预硫化方法
CN101323795A (zh) * 2008-07-15 2008-12-17 西南石油大学 一种汽油脱硫吸附剂的制备方法
CN101804325A (zh) * 2010-04-22 2010-08-18 上海化工研究院 一种改性活性炭吸附脱硫剂的制备方法

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