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作者:山东浩中水处理设备有限公司发布时间:2018-07-20 15:59:29tags: 车用尿素

国际标准下的车用尿素使用成本

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虽然车用尿素生产技术难度不是很大,但近一个时期内总体需求量不会很大,需要不了太多企业进入这个行业,因此建议国家有关部门应建立一个车用尿素的生产准入门槛,并有意识地限制总的生产规模。如果没有准入,这个市场就会乱。

车用尿素生产设备.jpg

车用尿素生产设备

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SCR和“车用尿素”带来使用成本显然,柴油车不论采用那种技术路线,都会带来车辆制造成本和用户采购成本的增加;而采用SCR技术路线,还增加了车用尿素的使用成本。至于车用尿素带来的成本,据陈院长介绍,车辆消耗100 L柴油大约需要3~5 L的车用尿素溶液,国内销售价格约4 000元/t,约4元/L,国内外价格差不多。如果按照我国当前卡车油耗30 L/100 km计,车用尿素消耗量大约是1 L/100 km,即4元/100 km。这对于常年在外跑的车主来说,也算是一个不小的开支。所以,也希望政府部门在财政上给予车主一定的补贴。

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因为国外车用尿素需要量大,已构成工业规模。车用尿素在国外由大型化工厂出产,如挪威的YARA公司,其50万t/a车用尿素溶液的出产工艺流程为:以天然气和空气为质料制得液氨,液氨与CO2反响组成尿素,尿素溶液经吸附和过滤制得车用尿素商品。

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提纯国内车用尿素首要是用工业尿素提纯:将尿素水溶液在70~75℃温度条件下水解,然后降温至30℃以下,尿素从头从水溶液中结晶出来,每水解结晶1次,纯度就会大幅度进步,通常利用工业一级尿素水解结晶1次就可达车用尿素规范的请求,其产出比为1.5∶1。

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装备尿素溶液快三彩票依据需要进行浓度配比核算,将适当的软水和提纯的尿素在容器中充沛混合、溶解,再进行灌装


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