CN108097215A - 一种用于汽柴油脱硫的吸附剂 - Google Patents
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Abstract
本发明属于汽柴油脱硫技术领域,具体涉及一种用于汽柴油脱硫的吸附剂。该用于汽柴油脱硫的吸附剂,包括以下物质:氧化锌、氧化钙、活性炭、金属促进剂、硝酸锰溶液和硝酸铜溶液。其有益效果是:本发明一种用于汽柴油脱硫的吸附剂可在对被处理物流的辛烷值影响最小的情况下从裂化汽柴油中脱除硫,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,可适用于催化裂化汽油或柴油机燃料脱硫过程。
Description
技术领域
本发明属于汽柴油脱硫技术领域,具体涉及一种用于汽柴油脱硫的吸附剂。
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,提供了一种用于汽柴油脱硫的吸附剂。
本发明是通过如下技术方案实现的:
一种用于汽柴油脱硫的吸附剂,包括以下物质:氧化锌、氧化钙、活性炭、金属促进剂、硝酸锰溶液和硝酸铜溶液,其原料组成按质量配比为:氧化锌10-25份、氧化钙15-28份、活性炭80-120份、锰金属促进剂9-12份、高硫酸钾溶液10-18份和硝酸铜溶液15-20份。
将上述各物质制成本发明的方法是:
1).将活性炭粉碎至圆球颗粒状;
2).将圆球颗粒状的活性炭浸渍至高硫酸钾溶液内进行氧化处理,并烘干备用;
3).将步骤2)中烘干后的圆球颗粒状活性炭浸渍硝酸铜溶液,浸渍时间为8-36个小时,并焙烧干燥;
4).将氧化锌、氧化钙和步骤3)中处理后的圆球颗粒状活性炭混合行程混合物颗粒;
5).将步骤3)中的混合物颗粒浸渍金属促进剂,并进行干燥,其中干燥温度为120℃,干燥时间3h,最后进行焙烧,在氮气保护下450℃温度下焙烧1-5h。
本发明的有益效果是:本发明一种用于汽柴油脱硫的吸附剂可在对被处理物流的辛烷值影响最小的情况下从裂化汽柴油中脱除硫,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,可适用于催化裂化汽油或柴油机燃料脱硫过程。
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
本发明一种用于汽柴油脱硫的吸附剂,包括以下物质:氧化锌、氧化钙、活性炭、金属促进剂、硝酸锰溶液和硝酸铜溶液,其原料组成按质量配比为:氧化锌10份、氧化钙15份、活性炭80份、锰金属促进剂9份、高硫酸钾溶液10份和硝酸铜溶液15份。
将上述各物质制成本发明的方法是:
1).将活性炭粉碎至圆球颗粒状;
2).将圆球颗粒状的活性炭浸渍至高硫酸钾溶液内进行氧化处理,并烘干备用;
3).将步骤2)中烘干后的圆球颗粒状活性炭浸渍硝酸铜溶液,浸渍时间为8个小时,并焙烧干燥;
4).将氧化锌、氧化钙和步骤3)中处理后的圆球颗粒状活性炭混合行程混合物颗粒;
5).将步骤3)中的混合物颗粒浸渍金属促进剂,并进行干燥,其中干燥温度为120℃,干燥时间3h,最后进行焙烧,在氮气保护下450℃温度下焙烧1h。
实施例2
本发明一种用于汽柴油脱硫的吸附剂,包括以下物质:氧化锌、氧化钙、活性炭、金属促进剂、硝酸锰溶液和硝酸铜溶液,其原料组成按质量配比为:氧化锌20份、氧化钙18份、活性炭100份、锰金属促进剂9份、高硫酸钾溶液12份和硝酸铜溶液18份。
将上述各物质制成本发明的方法是:
1).将活性炭粉碎至圆球颗粒状;
2).将圆球颗粒状的活性炭浸渍至高硫酸钾溶液内进行氧化处理,并烘干备用;
3).将步骤2)中烘干后的圆球颗粒状活性炭浸渍硝酸铜溶液,浸渍时间为18个小时,并焙烧干燥;
4).将氧化锌、氧化钙和步骤3)中处理后的圆球颗粒状活性炭混合行程混合物颗粒;
5).将步骤3)中的混合物颗粒浸渍金属促进剂,并进行干燥,其中干燥温度为120℃,干燥时间3h,最后进行焙烧,在氮气保护下450℃温度下焙烧3h。
实施例3
本发明一种用于汽柴油脱硫的吸附剂,包括以下物质:氧化锌、氧化钙、活性炭、金属促进剂、硝酸锰溶液和硝酸铜溶液,其原料组成按质量配比为:氧化锌25份、氧化钙28份、活性炭120份、锰金属促进剂12份、高硫酸钾溶液18份和硝酸铜溶液20份。
将上述各物质制成本发明的方法是:
1).将活性炭粉碎至圆球颗粒状;
2).将圆球颗粒状的活性炭浸渍至高硫酸钾溶液内进行氧化处理,并烘干备用;
3).将步骤2)中烘干后的圆球颗粒状活性炭浸渍硝酸铜溶液,浸渍时间为36个小时,并焙烧干燥;
4).将氧化锌、氧化钙和步骤3)中处理后的圆球颗粒状活性炭混合行程混合物颗粒;
5).将步骤3)中的混合物颗粒浸渍金属促进剂,并进行干燥,其中干燥温度为120℃,干燥时间3h,最后进行焙烧,在氮气保护下450℃温度下焙烧5h。
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 (4)
1.一种用于汽柴油脱硫的吸附剂,其特征在于,包括以下物质:氧化锌、氧化钙、活性炭、金属促进剂、硝酸锰溶液和硝酸铜溶液,其原料组成按质量配比为:氧化锌10-25份、氧化钙15-28份、活性炭80-120份、锰金属促进剂9-12份、高硫酸钾溶液10-18份和硝酸铜溶液15-20份。
2.根据权利要求1所述的一种用于汽柴油脱硫的吸附剂,其特征是:所述其原料组成按质量配比为:氧化锌25份、氧化钙28份、活性炭120份、锰金属促进剂12份、高硫酸钾溶液18份和硝酸铜溶液20份。
3.根据权利要求1所述的一种用于汽柴油脱硫的吸附剂,其特征是:所述其原料组成按质量配比为:氧化锌20份、氧化钙18份、活性炭100份、锰金属促进剂9份、高硫酸钾溶液12份和硝酸铜溶液18份。
4.根据权利要求1所述的一种用于汽柴油脱硫的吸附剂,其特征是:所述各物质制成本发明的方法是:
1).将活性炭粉碎至圆球颗粒状;
2).将圆球颗粒状的活性炭浸渍至高硫酸钾溶液内进行氧化处理,并烘干备用;
3).将步骤2)中烘干后的圆球颗粒状活性炭浸渍硝酸铜溶液,浸渍时间为8-36个小时,并焙烧干燥;
4).将氧化锌、氧化钙和步骤3)中处理后的圆球颗粒状活性炭混合行程混合物颗粒;
5).将步骤3)中的混合物颗粒浸渍金属促进剂,并进行干燥,其中干燥温度为120℃,干燥时间3h,最后进行焙烧,在氮气保护下450℃温度下焙烧1-5h。
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CN102343252A (zh) * | 2010-07-29 | 2012-02-08 | 中国石油化工股份有限公司 | 一种烃油脱硫吸附剂及其制备方法和应用 |
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