CN110157509A - 车用汽油清净剂及其配制方法 - Google Patents
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Abstract
提供一种车用汽油清净剂及其配制方法,由甲醇先在常温下均匀搅拌加入稳定剂,再在常温下均匀搅拌加入辛烃混合均匀静置2小时后配制而成;稳定剂由以下重量百分含量的工业原料组成:35~45%的N,N′‑二苯基硫脲、30~40%的聚乙烯酰胺、10~20%的丁二酮肟、8~15%的聚马来酸酐。本发明与普通汽油混配掺和后,可成为环保清洁汽油,互融性理想;与汽油掺兑后燃烧排放的有害气体含量低,动力性能冷启动性能理想,无热阻,不积碳;同时有效提高了普通汽油的抗爆指数,安全可靠;而且对车辆发动机及其它部件的腐蚀性远小于普通汽油,是综合性能优良的汽油清净剂。
Description
技术领域
本发明属石油化工汽油辅助添加制剂技术领域,具体涉及一种车用汽油清净剂及其配制方法。
背景技术
我国汽油以催化裂化汽油为主,烯烃含量相对较高,烷基化含量相对较少,容易生成沉积物,而汽油沉积物的累积对汽车平均寿命以及油耗均带来不利影响,因此为提高汽油质量,通常需要添加汽油清净剂。现有技术下,汽油清净剂通常由溶剂、清净剂、分散剂、抗氧化剂、防锈剂组成,添加到汽油中主要起抑制清除发动机沉积物的作用。现有技术下,汽油清净剂各组分配方配制后应用时主要存在的问题在于:首先,与普通汽油的互融性不太理想;而且,清净剂的有效成分对有些汽车零件的材料类型有特殊要求,通用性不够理想;再者,在环保方面,现有技术下的汽油清净剂各组分添加到汽油中所产生的尾气排放物中,一氧化碳、碳氢化合物、氮氧化合物含量仍旧较高;此外,在动力性能方面,现有技术下的清净剂配制于汽油后使用,存在较高热阻,车辆动力性能以及冷启动性能不佳;在安全性方面,清净剂内稳定剂的抗爆指数有待降低,添加清净剂的汽油燃烧稳定性安全性有待进一步提升。对此,现提出如下技术方案。
发明内容
本发明解决的技术问题:提供一种车用汽油清净剂,解决现有技术下汽油清净剂与普通汽油互融性不理想,一氧化碳、碳氢化合物、氮氧化合物尾气排放含量仍旧偏高,动力性能冷启动性能不够理想;抗爆安全性有待加强的技术问题。
本发明采用的技术方案:车用汽油清净剂,其特征在于,由甲醇、辛烃和稳定剂组成;所述稳定剂由以下重量百分含量的工业原料组成:35~45%的N,N′-二苯基硫脲、30~40%的聚乙烯酰胺、10~20%的丁二酮肟、8~15%的聚马来酸酐。
上述技术方案中,进一步地:由甲醇、辛烃和稳定剂组成的车用汽油清净剂中每1000kg甲醇含辛烃30~100kg、稳定剂4~5kg。
优选地:所述稳定剂由以下重量百分含量的工业原料组成:40%的N,N′-二苯基硫脲、40%的聚乙烯酰胺、10%的丁二酮肟、10%的聚马来酸酐。
上述技术方案涉及的车用汽油清净剂,由以下步骤配制而成:
步骤1、在1000kg甲醇中加入4~5kg稳定剂,在常温条件下,使用管道和循环泵进行密闭循环均匀搅拌;
步骤2、在步骤1得到的混合溶剂中加入30kg~100kg辛烃,使用管道和循环泵进行密闭循环均匀搅拌;搅拌均匀后静置2小时得到车用汽油清净剂。
进一步地:为保证混配后的最佳动力性能:上述技术方案涉及的车用汽油清净剂与汽油按照30~40%的体积百分含量混合配制。
本发明与现有技术相比的优点:
1、本发明N,N′-二苯基硫脲、聚乙烯酰胺、丁二酮肟、聚马来酸酐组成的稳定剂配方,兼具清净、抗氧、分散、防锈、破乳功能特性,属于较为经济型复合燃料添加剂;使用本清净汽油添加剂,与普通汽油混合,能保证良好的相融性;且相融混合后汽油综合质量稳定,性能优异;不仅如此,采用本发明汽油清净剂,无需改变更换任何车辆零部件,与各种车型零件的通用性适用性理想,且油嘴以及进气阀无积碳,并对零部件具有缓蚀作用以及抗氧化性能,抑制燃油沉积物生成效果理想;
2、本发明可以通过辛烃的改变,根据需要适应性调节汽油清净剂的动力性能,并保证抗爆性;对于不同标号汽油的混合相融性,都能满足并体现前述特性功能的使用需求;
3、本发明即使与普通汽油添加,仍无热阻,不积碳,冷启动效果良好;且该配方含硫量低(低于5ppm),不仅有效降低了有害气体排放量,而且对机车本身零部件的缓蚀性性能优良,对车辆发动机以及其它零部件的腐蚀性明显小于其它清净型汽油;
4、本发明与普通汽油混配后,稳定性良好,安全性优良,抗爆指数显著提升,稳定可靠。
具体实施方式
下面对本发明的具体实施方式作进一步详细描述。
以下的实施例便于更好地理解本发明,但并不限定本发明。下述实施例中的实验方法,如无特殊说明,均为常规方法。
下述实施例中所用的各工业原料组分,除工业副产品外,如无特殊说明,均为市售。除辛烃外,辛烃的获得可以参见授权公告号为CN105038839A的《以甲醇为原料的轻烃制备方法及轻烃制备系统》中国专利。即可以采用诸如此类方法采用工业制备的方法来获取液态辛烃并添加。除此之外,优选地,本发明辛烃优选由石油化工生产中的中间产物直接提供。
实施例一:
车用汽油清净剂,由甲醇、辛烃和稳定剂组成;所述稳定剂由以下重量百分含量的工业原料组成:40%的N,N′-二苯基硫脲、30%的聚乙烯酰胺、20%的丁二酮肟、10%的聚马来酸酐。由甲醇、辛烃和稳定剂组成的车用汽油清净剂中每1000kg甲醇含辛烃30kg、稳定剂4kg。且车用汽油清净剂与汽油按照30%的体积百分含量混合配制,互相掺合后直接加入油箱,可直接使用。
该实施例的车用汽油清净剂,由以下步骤配制而成:
步骤1、在1000kg甲醇中加入4kg稳定剂,在常温条件下,使用管道和循环泵进行密闭循环均匀搅拌;
步骤2、在步骤1得到的混合溶剂中,加入30kg辛烃,使用管道和循环泵进行密闭循环均匀搅拌;搅拌均匀后静置2小时得到车用汽油清净剂。
实施例二:
车用汽油清净剂,由甲醇、辛烃和稳定剂组成;所述稳定剂由以下重量百分含量的工业原料组成:40%的N,N′-二苯基硫脲、40%的聚乙烯酰胺、10%的丁二酮肟、10%的聚马来酸酐。由甲醇、辛烃和稳定剂组成的车用汽油清净剂中每1000kg甲醇含辛烃40kg、稳定剂5kg。车用汽油清净剂与汽油按照35%的体积百分含量混合配制,互相掺合后直接加入油箱,可直接使用。
该实施例的车用汽油清净剂,由以下步骤配制而成:
步骤1、在1000kg甲醇中加入5kg稳定剂,在常温条件下,使用管道和循环泵进行密闭循环均匀搅拌;
步骤2、在步骤1得到的混合溶剂中,加入40kg辛烃,使用管道和循环泵进行密闭循环均匀搅拌;搅拌均匀后静置2小时得到车用汽油清净剂。
实施例三:
车用汽油清净剂,由甲醇、辛烃和稳定剂组成;所述稳定剂由以下重量百分含量的工业原料组成:45%的N,N′-二苯基硫脲、30%的聚乙烯酰胺、10%的丁二酮肟、15%的聚马来酸酐。由甲醇、辛烃和稳定剂组成的车用汽油清净剂中每1000kg甲醇根据不同标号汽油,根据不同标号的汽油、根据汽车动力性,含辛烃30~100kg、稳定剂4~5kg。且车用汽油清净剂与汽油按照30~40%的体积百分含量混合配制,互相掺合后直接加入油箱,可直接使用。
该实施例的车用汽油清净剂,由以下步骤配制而成:
步骤1、每1000kg甲醇中加入4~5kg稳定剂,在常温条件下,使用管道和循环泵进行密闭循环均匀搅拌;
步骤2、在步骤1得到的混合溶剂中,根据不同标号的汽油、根据汽车动力性,加入30kg~100kg辛烃,使用管道和循环泵进行密闭循环均匀搅拌;搅拌均匀后静置2小时得到车用汽油清净剂。
上述实施例中稳定剂各组分工业原料特性如下:
辛烃属于C8轻烃,与无铅汽油混配成90#、93#、97#标号汽油,烯烃含量低,不易积碳、不易堵塞、稳定性优良、不易生成胶质,优于普通汽油。其中,N,N′-二苯基硫脲起促进剂作用,并对汽车金属零部件具有缓蚀特性,而且对清净剂和汽油的混合配置具有促进融合作用,因此能对汽油产品赋予分散、破乳性能。聚乙烯酰胺为优良的融合剂,具有吸收特性,与汽油混合,起到优良的粘结溶剂效果,可显著提升本发明与不同标号汽油混合配制的通用性适配性能。丁二酮肟起到螯合剂的特性,赋予汽油防结垢、防积碳的优良特性;聚马来酸酐为增塑剂,与汽油混配,能赋予汽油优良的缓蚀特性并兼具融合特性。
对照实验:
关于上述实施例中N,N′-二苯基硫脲、聚乙烯酰胺、丁二酮肟、聚马来酸酐组成的稳定剂配方,在尾气排放物中,一氧化碳、碳氢化合物、氮氧化合物的含量比对列表如下:
序号 | 有毒气体 | 普通汽油 | 环保清洁汽油 |
1 | 一氧化碳 | 2.72% | 0.04% |
2 | 碳氢化合物 | 0.97% | 0.024% |
3 | 氮氧化合物 | 0.14% | 0.013% |
可见,添加了该配方汽油清净剂,在环保性方面:欧Ⅲ标准中(我国汽车排放标准基本采用欧洲标准体系),轻型汽车废气中一氧化碳、碳氢化合物和氮氧化物的尾气排放限值分别为2.1%、0.66%、5%。参见上表可见,本发明汽油清净剂与汽油混配后的有害气体排放含量显著降低,有害气体的尾气排放含量明显低于欧Ⅲ最大限值,因此非常清洁环保。
通过以上描述可以发现:本发明稳定剂配方具有清净、抗氧、分散、防锈、破乳功能特性,并且为较为经济的复合燃料添加剂;尤其本发明N,N′-二苯基硫脲、聚乙烯酰胺的添加,使用本清净汽油添加剂,与普通汽油按比例混合,均能保证良好的相融性;且相融混合后汽油综合质量稳定,性能优异;不仅如此,采用本发明汽油清净剂,丁二酮肟的添加,能螯合汽油中金属离子,并将螯合产物有效溶解在汽油中,因此无需改变更换任何车辆零部件,与各种车型零件的通用性适用性理想,且油嘴以及进气阀无积碳,并对零部件具有缓蚀作用以及抗氧化性能,抑制燃油沉积物生成效果理想。
再者,本发明可以通过辛烷值的改变(调节辛烃加入量),可以根据需要适应性调节汽油清净剂的动力性能、抗爆性能;对于不同标号汽油的混合相融性,都能满足并体现前述清净、抗氧、分散、防锈、破乳特性功能的使用需求。再者,本发明即使与普通汽油添加,仍无热阻,不积碳,冷启动效果良好;且该配方含硫量低(低于5ppm),不仅有效降低了有害气体排放量,而且对机车本身零部件的缓蚀性性能优良,对车辆发动机以及其它零部件的腐蚀性明显小于其它清净型汽油。此外,本发明与普通汽油混配后,稳定性良好,安全性优良,抗爆指数显著提升,稳定可靠。
上述实施例,只是本发明的较佳实施例,并非用来限制本发明实施范围,故凡以本发明权利要求所述内容所做的等效变化,均应包括在本发明权利要求范围之内。
Claims (5)
1.车用汽油清净剂,其特征在于,由甲醇、辛烃和稳定剂组成;所述稳定剂由以下重量百分含量的工业原料组成:35~45%的N,N′-二苯基硫脲、30~40%的聚乙烯酰胺、10~20%的丁二酮肟、8~15%的聚马来酸酐。
2.根据权利要求1所述的车用汽油清净剂,其特征在于:由甲醇、辛烃和稳定剂组成的车用汽油清净剂中每1000kg甲醇含辛烃30~100kg、稳定剂4~5kg。
3.根据权利要求1或2所述的车用汽油清净剂,其特征在于:所述稳定剂由以下重量百分含量的工业原料组成:40%的N,N′-二苯基硫脲、40%的聚乙烯酰胺、10%的丁二酮肟、10%的聚马来酸酐。
4.根据权利要求3所述的车用汽油清净剂,其特征在于由以下步骤配制而成:
步骤1、在1000kg甲醇中加入4~5kg稳定剂,在常温条件下,使用管道和循环泵进行密闭循环均匀搅拌;
步骤2、在步骤1得到的混合溶剂中加入30kg~100kg辛烃,使用管道和循环泵进行密闭循环均匀搅拌;搅拌均匀后静置2小时得到车用汽油清净剂。
5.根据权利要求3所述的车用汽油清净剂,其特征在于:车用汽油清净剂与汽油按照30~40%的体积百分含量混合配制。
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