Biodiesel Feedstock and Contaminant Contributions to Diesel Fuel Filter Blocking
Biodiesel Feedstock and Contaminant Contributions to Diesel Fuel Filter Blocking
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DOI：
10.4271/2014-01-2723
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发表时间：
2014-11-01
影响因子：
1
通讯作者：
Galante-Fox, Julie M.
中科院分区：
文献类型：
--
作者：
Fersner, Alexandra S.;Galante-Fox, Julie M.
近年来，在美国和欧洲，柴油滤清器过早堵塞的投诉数量和严重程度急剧增加。这些情况通常伴随着较长的启动时间、较差的驾驶性能以及不同燃油滤清器应用中的维护增加。这些过滤器堵塞情况的增加与高压共轨（HPCR）燃料系统的日益普及和生物柴油的日益使用密切相关。由于HPCR喷油器间隙更小，燃油滤清器的孔径限制更小，再加上燃油中的生物柴油和羧酸盐污染物，已被确定为柴油滤清器堵塞的加速剂。将报告可用于筛选污染物掺杂的B10燃油（ULSD中10% FAME生物柴油）的测试协议，以确定其堵塞燃油滤清器的倾向。使用台式过滤测试设备对燃料进行评估，以确定其过滤器堵塞趋势（FBT）值。研究了三种与生物柴油相关的污染物：饱和单甘油酯、甾醇葡萄糖苷和羧酸盐。测试结果将表明，生物柴油的特定原料--从用过的食用油到椰子油--会改变含生物柴油燃料的过滤性。相同的污染物水平可能会或可能不会导致过滤器堵塞，这取决于生物柴油原料。此外，用市售存款控制添加剂（DCA）处理污染物掺杂的燃料将被证明可以防止或减轻柴油过滤器堵塞。还将强调试验燃料制备的重要参数，这些参数可能被证明对内部柴油喷射器存款（IDID）发动机试验开发有用。
In recent years, the number of complaints and the severity of premature diesel fuel filter plugging have increased dramatically in the U.S. and Europe. These instances are often accompanied by longer start up times, poor drivability, and increased maintenance across different fuel filter applications. The rise in these instances of filter plugging is closely associated with the increasing prevalence of high pressure common rail (HPCR) fuel systems and the growing usage of biodiesel. Smaller pore size restrictions for fuel filters due to tighter clearances in HPCR injectors, coupled with contaminants from biodiesel and carboxylate salts in fuel, have been identified as accelerants of diesel fuel filter plugging.Testing protocols will be reported that can be used to screen contaminant-doped B10 fuels (10% FAME biodiesel in ULSD) to determine their propensity to plug fuel filters. Fuels were evaluated using bench-top filtration testing equipment to determine their filter blocking tendency ( FBT) values. Three biodiesel related contaminants were investigated: saturated monoglycerides, sterol glucosides, and carboxylate salts.Test results will show that the specific feedstock of biodiesel - from used cooking oil to coconut oil - can alter the filterability of biodiesel-containing fuels. The same contaminant level may or may not cause filter blocking depending on the biodiesel feedstock. Additionally, the treatment of contaminant-doped fuels with commercially available deposit control additives (DCAs) will be shown to prevent or mitigate diesel fuel filter blocking.Important parameters for test fuel preparation will also be highlighted that could prove useful for internal diesel injector deposit (IDID) engine test development.