R&D spillovers and the ge-ography of innovation and production
R&D spillovers and the ge-ography of innovation and production
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发表时间：
1996-06
期刊：
影响因子：
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通讯作者：
D. Audretsch;M. Feldman
中科院分区：
文献类型：
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作者：
D. Audretsch;M. Feldman
本发明公开了一种具有减少的烟灰和发烟的液体燃料组合物，其特征在于包含主要比例的液体烃燃料和次要比例的羧酸的IIA族和IIB族金属盐。优选的燃料组合物是在柴油燃料中混合的0.1 - 0.6重量%的2-乙基己酸钡和2-乙基己酸锌，其中钡与锌的重量比为约10比1。当在盐和燃料混合物中另外加入醚时，在烃燃料中获得了烟和烟灰减少的进一步改进。一种由约0.1 - 0.6wt%的2-乙基己酸钡和2-乙基己酸锌、0.2 - 0.5wt%的乙二醇单甲醚和余量的柴油组成的混合物，具有显著降低的烟和烟灰形成特性。
The invention disclosed herein is a liquid fuel composition having reduced soot and smoking characterized comprising a major proportion of a liquid hydrocarbon fuel and a minor proportion of Group IIA and Group IIB metal salts of carboxylic acids. A preferred fuel composition is from 0.1 to 0.6 percent by weight of barium- and zinc 2-ethylhexanoates admixed in diesel fuel, wherein the weight ratio of barium to zinc is about 10 to 1. Further improvement in smoke and soot reduction is obtained in hydrocarbon fuels when an ether is additionally incorporated into the salt and fuel mixture. A mixture of from about 0.1 to 0.6 percent by weight of barium 2-ethylhexanoate and zinc 2-ethylhexanoate, from between 0.2 to 0.5 percent by weight of the monomethyl ether of ethylene glycol and the balance, a diesel fuel, has substantially reduced smoke and soot forming characteristics.