CN1293170C - Fuel of diesel oil mixed with alcohol and its asistant formula - Google Patents
Fuel of diesel oil mixed with alcohol and its asistant formula Download PDFInfo
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- CN1293170C CN1293170C CNB2004100110493A CN200410011049A CN1293170C CN 1293170 C CN1293170 C CN 1293170C CN B2004100110493 A CNB2004100110493 A CN B2004100110493A CN 200410011049 A CN200410011049 A CN 200410011049A CN 1293170 C CN1293170 C CN 1293170C
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- 239000000446 fuel Substances 0.000 title claims abstract description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title abstract description 129
- 239000002283 diesel fuel Substances 0.000 title abstract description 23
- 239000006184 cosolvent Substances 0.000 claims abstract description 51
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- 235000019438 castor oil Nutrition 0.000 claims abstract description 20
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 13
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- 238000000034 method Methods 0.000 abstract description 7
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- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 14
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- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 6
- 230000032798 delamination Effects 0.000 description 4
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- 229940057402 undecyl alcohol Drugs 0.000 description 4
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 3
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
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Abstract
本发明的乙醇柴油混和燃料及助溶剂配方属燃料化工领域。乙醇柴油混和燃料由柴油、乙醇、助溶剂组成，按体积的配比为：柴油∶乙醇∶助溶剂＝9～8∶1～2∶0.02～0.6。其中助溶剂是长链脂肪醇、混和醇或醇醚与蓖麻油按体积比为1～6∶1的混和物。本发明通过加入配制的助溶剂，乙醇能够与柴油形成均匀、稳定、透明的乙醇柴油溶液，并具有一定的抗水性能，稳定期超过三个月。本发明由于使用复合型助溶剂，不仅成本降低20-30%，助溶效果提高，而且适于各种温度条件和油品中使用。本发明助溶剂添加工艺简便，同时不需对柴油机进行改进，在与柴油掺混过程中也不需要增加任何设备。
The ethanol diesel mixed fuel and the cosolvent formulation of the invention belong to the field of fuel chemical industry. The ethanol-diesel blended fuel is composed of diesel oil, ethanol and co-solvent, and the ratio by volume is: diesel oil: ethanol: co-solvent = 9-8: 1-2: 0.02-0.6. Wherein the auxiliary solvent is a mixture of long-chain fatty alcohol, mixed alcohol or alcohol ether and castor oil in a volume ratio of 1-6:1. In the invention, ethanol can form a uniform, stable and transparent ethanol-diesel solution with diesel oil by adding the prepared co-solvent, and has certain water-resistance performance, and the stable period exceeds three months. The invention not only reduces the cost by 20-30% and improves the solubilizing effect due to the use of the composite auxiliary solvent, but also is suitable for use in various temperature conditions and oil products. The process of adding the co-solvent is simple and convenient, and at the same time, the diesel engine does not need to be improved, and no equipment needs to be added during the blending process with the diesel.
Description
技术领域technical field
本发明属燃料化工领域，特别涉及一种加入到乙醇及多种市售柴油中，使其在一定比例范围内混合，并得到均匀、稳定、透明的乙醇柴油的助溶剂配方。The invention belongs to the field of fuel chemical industry, and in particular relates to a co-solvent formulation which is added to ethanol and various commercially available diesel oils to mix them within a certain ratio range to obtain uniform, stable and transparent ethanol diesel oils.
背景技术Background technique
为缓解石油紧缺的危机，解决玉米等粮食的转化，降低汽车尾气减少环境污染，中国政府在2001年实施了“乙醇燃料开发计划”，建设了三个乙醇燃料的生产基地。In order to alleviate the oil shortage crisis, solve the transformation of corn and other grains, reduce vehicle exhaust and reduce environmental pollution, the Chinese government implemented the "Ethanol Fuel Development Plan" in 2001 and built three ethanol fuel production bases.
关于乙醇柴油助溶剂方面的研究，国内外已有许多专家学者在积极进行。在2004年2月11日公开的中国专利CN 1473912A中，以合成的共聚物与非离子表面活性剂作为主要成分，与一些次要成分(增溶剂、溶剂油等)混合成助溶剂，加入到以任意比例混合的乙醇柴油混合物中，可以形成均匀、稳定的溶液，尾气烟度最大幅度可降低80％，并有一定的抗水性能，至少两个月不分层。Many experts and scholars at home and abroad have been actively conducting research on ethanol diesel co-solvents. In the Chinese patent CN 1473912A disclosed on February 11, 2004, the copolymer and nonionic surfactant of synthesis are used as the main component, mixed with some secondary components (solubilizer, solvent oil, etc.) to form a cosolvent, added to In the mixture of ethanol and diesel mixed in any proportion, a uniform and stable solution can be formed, the exhaust smoke can be reduced by up to 80%, and it has certain water resistance, and it will not be stratified for at least two months.
但是仍存在下述的不足：助溶剂成分繁杂，添加量大，使助溶剂的成本提高；制备乙醇柴油混合燃料要经过“高速剪切搅拌，磁化”，过程繁琐，也会使乙醇柴油的成本提高。这些都非常不利于推广应用。But still there are following deficiencies: co-solvent composition is numerous and diverse, and the addition amount is large, and the cost of co-solvent is increased; Preparation of ethanol-diesel blended fuel needs to go through "high-speed shear stirring, magnetization", the process is loaded down with trivial details, also can make the cost of ethanol-diesel improve. These are very detrimental to the promotion of applications.
发明内容Contents of the invention
乙醇和柴油是两种化学结构和化学性质差别都很大的物质。乙醇含有羟基，能与水以任意比例互溶，具有亲水性；柴油是成分复杂的石油产品，一般来说是由含C15-C25的饱和烃、烯烃、单环芳烃、多环芳烃等有机物组成。乙醇与柴油在常温下的互溶性极差，甚至乳化也很困难，要得到稳定的乙醇柴油混合燃料更是不易，因此就必须添加一种能够降低乙醇相和柴油相之间的表面张力的物质，使两相性质得到改善，有利于形成稳定、均匀的混合燃料。同时，添加的物质不应造成乙醇柴油混合物与纯柴油的性质有太大差异，以免在用于柴油机时出现各种问题；并且添加的物质应该比较便宜、易得，使乙醇柴油的成本不会太高，能够实现工业化生产。发明人比较了多种可能的物质，经过大量的筛选优化，确定了本发明的乙醇柴油混合燃料配方及适用的助溶剂。Ethanol and diesel are two substances with very different chemical structures and chemical properties. Ethanol contains hydroxyl groups, can be miscible with water in any proportion, and has hydrophilicity; diesel oil is a petroleum product with complex components, generally composed of saturated hydrocarbons containing C 15 -C 25 , olefins, single-ring aromatic hydrocarbons, polycyclic aromatic hydrocarbons, etc. organic composition. The miscibility of ethanol and diesel oil at room temperature is extremely poor, and even emulsification is very difficult. It is even more difficult to obtain a stable ethanol-diesel blended fuel. Therefore, it is necessary to add a substance that can reduce the surface tension between the ethanol phase and the diesel phase. , so that the two-phase properties are improved, which is conducive to the formation of stable and uniform mixed fuels. At the same time, the added substances should not cause too much difference in the properties of ethanol-diesel mixture and pure diesel, so as to avoid various problems when used in diesel engines; and the added substances should be relatively cheap and easy to obtain, so that the cost of ethanol-diesel will not Too high, can realize industrialized production. The inventor compared a variety of possible substances, and determined the formulation of the ethanol-diesel blended fuel of the present invention and a suitable co-solvent after a large number of screening and optimization.
单一的表面活性物质是难以使乙醇和柴油形成稳定的乳液的。考虑到经济可行性，配得的助溶剂应在尽可能小的用量下得到好的助溶效果。由于不同比例范围的乙醇柴油混合燃料有不同界面情况，适合于其比例范围的助溶剂也不同。而且，因为水分子形成氢键的能力比乙醇强许多，所以，水在乙醇柴油体系中的影响是不可忽视的。在柴油的存储、运输过程中，柴油难免会带入少量的水分，因此配成的乙醇柴油混合燃料应具有一定的抗水性能。It is difficult for a single surface active substance to form a stable emulsion of ethanol and diesel. Considering the economic feasibility, the prepared co-solvent should be used in the smallest possible amount to obtain a good solubilizing effect. Since ethanol-diesel blended fuels in different ratio ranges have different interface conditions, the co-solvents suitable for their ratio ranges are also different. Moreover, because the ability of water molecules to form hydrogen bonds is much stronger than that of ethanol, the influence of water in the ethanol-diesel system cannot be ignored. During the storage and transportation of diesel oil, diesel oil will inevitably bring a small amount of water, so the ethanol-diesel blended fuel should have certain water resistance.
本发明要解决的技术问题是，通过筛选出几种均匀、稳定、透明的乙醇柴油助溶剂，将助溶剂加入到乙醇及多种市售柴油中，使其在一定比例范围内混合，得到相溶性很好的乙醇柴油混合燃料，并且添加的物质应该比较便宜、易得，使乙醇柴油的成本不会太高，能够实现工业化生产，并能使其在不改变柴油机构造的情况下使用。The technical problem to be solved by the present invention is that, by screening out several uniform, stable and transparent ethanol diesel co-solvents, adding the co-solvents to ethanol and various commercially available diesel oils, and mixing them within a certain proportion to obtain a similar Ethanol-diesel blended fuel with good solubility, and the added substances should be relatively cheap and easy to obtain, so that the cost of ethanol-diesel will not be too high, and industrial production can be realized, and it can be used without changing the structure of the diesel engine.
本发明的乙醇柴油混和燃料，由柴油、乙醇、助溶剂组成，按体积的配比为：柴油∶乙醇∶助溶剂＝9～8∶1～2∶0.02～0.6。The ethanol-diesel mixed fuel of the present invention is composed of diesel oil, ethanol and co-solvent, and the ratio by volume is: diesel oil: ethanol: co-solvent = 9-8: 1-2: 0.02-0.6.
乙醇为燃料乙醇，纯度最好大于99.6％。柴油可以是市售的各生产厂家(燕山石化、锦州石化、大港油田等)的各种牌号(10#、0#、-20#、-35#等)的柴油。The ethanol is fuel ethanol, and the purity is preferably greater than 99.6%. Diesel oil can be diesel oil of various brands (10#, 0#, -20#, -35#, etc.) from various manufacturers (Yanshan Petrochemical, Jinzhou Petrochemical, Dagang Oilfield, etc.) on the market.
本发明的乙醇柴油混和燃料的助溶剂配方是：长链脂肪醇、混和醇或醇醚与蓖麻油按体积比为1～6∶1的混和物，即，由长链脂肪醇、混和醇或醇醚与蓖麻油按一定体积比混合而成的。比较好的混合体积比为3～4∶1。所说的长链脂肪醇是四碳至二十碳的各种一元、二元或多元脂肪醇。所说的混和醇是四碳至二十碳的各种一元、二元或/和多元脂肪醇中2～4种脂肪醇的混合物。The co-solvent formulation of the ethanol diesel blended fuel of the present invention is: the mixture of long-chain fatty alcohol, mixed alcohol or alcohol ether and castor oil in a volume ratio of 1～6:1, that is, by long-chain fatty alcohol, mixed alcohol or Alcohol ether and castor oil are mixed according to a certain volume ratio. A better mixing volume ratio is 3-4:1. Said long-chain fatty alcohols are various monobasic, dibasic or polyhydric fatty alcohols of four carbons to twenty carbons. Said mixed alcohol is a mixture of 2-4 fatty alcohols in various monohydric, dihydric or/and polyhydric fatty alcohols with four carbons to twenty carbons.
本发明的乙醇柴油混和燃料的制备方法是：以柴油、乙醇、助溶剂为原料，分别量取，注入容器，加料完成密封。The preparation method of the ethanol-diesel blended fuel of the present invention is as follows: taking diesel oil, ethanol and co-solvent as raw materials, measuring them separately, pouring them into a container, and adding materials to complete sealing.
为开发出具有独立知识产权的高效、无毒成本低的助溶剂，本项目采用优选法和正交试验法、优选、配制并且合成新的乙醇柴油助溶剂。对国产各类轻柴油，乙醇添加比例在20％以下，助溶剂用量在1.5％以下，达到在凝固点温度以上时不分层，稳定期3个月。为此。发明人研究开发了合适的双亲性复合型助溶剂，能使国产各类轻柴油与乙醇燃料稳定相溶。In order to develop a high-efficiency, non-toxic and low-cost co-solvent with independent intellectual property rights, this project adopts optimization method and orthogonal test method to optimize, formulate and synthesize a new ethanol diesel co-solvent. For all types of domestic light diesel oil, the proportion of ethanol added is below 20%, and the amount of co-solvent is below 1.5%. When the temperature is above the freezing point, there is no stratification, and the stability period is 3 months. to this end. The inventor has researched and developed a suitable amphiphilic compound co-solvent, which can make various domestic light diesel oils and ethanol fuels dissolve stably.
以-20#柴油为例，在乙醇∶柴油＝1∶1的情况下，讨论乙醇柴油相容性与体系中含水量的关系。Taking -20# diesel as an example, in the case of ethanol:diesel = 1:1, discuss the relationship between the compatibility of ethanol and diesel and the water content in the system.
见图1，曲线A表示的是-20#柴油没有注水时的乙醇柴油的分层温度与体系中含水量、助溶剂用量之间的关系，曲线B、C、D、E、F分别表示的是注水0.1％、0.2％、0.3％、0.4％、0.5％时乙醇柴油的分层温度与体系中含水量、助溶剂用量之间的关系。See Figure 1. Curve A shows the relationship between the stratification temperature of ethanol diesel and the water content in the system and the amount of co-solvent when -20# diesel oil is not injected with water. Curves B, C, D, E, and F respectively represent the It is the relationship between the stratification temperature of ethanol diesel oil and the water content in the system and the amount of cosolvent when water is injected at 0.1%, 0.2%, 0.3%, 0.4%, and 0.5%.
从图1可以看出，含水量的大小对乙醇柴油的分层温度影响很大。当加入相同量的助溶剂时，乙醇柴油的分层温度随着含水量的增加而明显升高，因此，实际生产时应注意水污染问题。而当含水量一定时，乙醇柴油的分层温度随着助溶剂的用量增加而呈线性下降趋势，当含水量增高时，适当增加助溶剂含量可以有效降低分层温度。It can be seen from Figure 1 that the water content has a great influence on the stratification temperature of ethanol diesel. When the same amount of co-solvent is added, the stratification temperature of ethanol diesel increases significantly with the increase of water content. Therefore, attention should be paid to the problem of water pollution in actual production. When the water content is constant, the delamination temperature of ethanol-diesel decreases linearly with the increase of the amount of co-solvent.
再以锦州常一柴油为例，讨论助溶剂对乙醇柴油相容性的影响。所用助溶剂为十二碳醇-蓖麻油按一定比例的复合物，十二碳醇的体积比率为80％；蓖麻油为20％。试验结果见图2。Taking Jinzhou Changyi Diesel as an example, discuss the influence of co-solvent on the compatibility of ethanol diesel. The co-solvent used is the compound of dodecyl alcohol-castor oil in a certain proportion, the volume ratio of dodecyl alcohol is 80%; the volume ratio of castor oil is 20%. The test results are shown in Figure 2.
图2中，曲线A含量为加入1.5％助溶剂时乙醇柴油的分层温度随乙醇含量变化的情况，曲线B锦州常一柴油不加助溶剂时乙醇柴油的分层温度随乙醇含量变化的情况。In Fig. 2, the content of curve A is the situation that the stratification temperature of ethanol diesel oil changes with ethanol content when adding 1.5% cosolvent, and the situation of stratification temperature of ethanol diesel oil changes with ethanol content when curve B Jinzhou Changyi diesel oil does not add cosolvent .
从乙醇/柴油相容性曲线上我们可以得出以下两条结论：From the ethanol/diesel compatibility curve, we can draw the following two conclusions:
a：加入助溶剂以后的乙醇/柴油分层温度明显低于未加助溶剂的分层温度。a: The ethanol/diesel delamination temperature after adding co-solvent is significantly lower than that without co-solvent.
b：随着乙醇含量的增加，乙醇/柴油的分层温度逐渐升高，当乙醇含量达到50％时，分层温度最高，此后分层温度随乙醇含量增加而降低。b: With the increase of ethanol content, the stratification temperature of ethanol/diesel increases gradually. When the ethanol content reaches 50%, the stratification temperature is the highest, and then the stratification temperature decreases with the increase of ethanol content.
本发明通过加入配制的助溶剂，乙醇能够与柴油在一定比例范围内形成均匀、稳定、透明的乙醇柴油溶液，并且具有一定的抗水性能，稳定期超过三个月。本发明由于使用复合型助溶剂，比单一助溶剂的成本低20-30％，不仅使乙醇柴油助溶剂效果提高，而且适于各种温度条件和油品中使用。本发明助溶剂添加工艺简便，不需对柴油机进行改进，同时在与柴油掺混过程中也不需要增加任何设备。In the present invention, by adding the formulated co-solvent, ethanol can form a uniform, stable and transparent ethanol-diesel solution with diesel within a certain ratio range, and has certain water-resistance performance, and the stable period exceeds three months. Because the present invention uses a compound auxiliary solvent, the cost is 20-30% lower than that of a single auxiliary solvent, not only improves the effect of ethanol diesel auxiliary solvent, but also is suitable for use in various temperature conditions and oil products. The invention has a simple and convenient process for adding the co-solvent, does not need to improve the diesel engine, and does not need to add any equipment during the blending process with the diesel.
附图说明Description of drawings
图1是本发明的乙醇柴油相容性与体系中含水量的关系曲线。Fig. 1 is the relationship curve between the ethanol diesel compatibility of the present invention and the water content in the system.
图2是本发明的助溶剂对乙醇柴油相容性的影响曲线。Fig. 2 is the influence curve of co-solvent of the present invention on ethanol diesel compatibility.
具体实施方式Detailed ways
实施例1Example 1
按下述比例量取原料：柴油9升，乙醇1升，助溶剂0.15升。试验中，柴油选用了前述的厂家及型号的柴油共计16种。The raw materials were measured according to the following proportions: 9 liters of diesel oil, 1 liter of ethanol, and 0.15 liters of auxiliary solvent. In the test, a total of 16 kinds of diesel oil from the aforementioned manufacturers and models were selected for diesel.
该种助溶剂为十二碳醇-蓖麻油按一定比例的复合物，十二碳醇的体积比率为75％；蓖麻油为25％。The co-solvent is a compound of dodecyl alcohol-castor oil in a certain proportion, and the volume ratio of dodecyl alcohol is 75%; that of castor oil is 25%.
制备方法及试验结果如下：The preparation method and test results are as follows:
将上述三种原料分别量取，首先向容器中加入柴油，再添加助溶剂，然后加入燃料乙醇，加料完成密封，进行充分搅拌振荡混合，稳定后放置在冰柜中，从柴油凝固点开始每5摄氏度升一次温直到室温，每次静置3小时，未见分层。并放置在室外3个月不分层。Measure the above three raw materials separately, first add diesel oil to the container, then add co-solvent, and then add fuel ethanol, complete the filling and seal, fully stir and oscillate to mix, place in the freezer after stabilization, and start from the freezing point of diesel oil every 5 degrees Celsius Raise the temperature once to room temperature, and let stand for 3 hours each time, no delamination was seen. And placed outdoors for 3 months without delamination.
实施例2Example 2
按上述比例量取原料，所加助溶剂为异辛醇-蓖麻油按一定比例的复合物，异辛醇的体积比率为80％，蓖麻油为20％。制备方法及试验结果同实施例1。The raw materials are measured according to the above ratio, and the added co-solvent is a compound of isooctyl alcohol-castor oil in a certain proportion, the volume ratio of isooctyl alcohol is 80%, and the castor oil is 20%. The preparation method and test results are the same as in Example 1.
实施例3Example 3
以0#柴油为基础柴油，柴油与乙醇体积比为9∶1，助溶剂添加比例为1％。所加助溶剂为十二碳醇和十四碳醇-蓖麻油按一定比例的复合物，按体积比为：十二碳醇∶十四碳醇∶蓖麻油＝2∶1∶1。制备方法及试验结果同实施例1。0# diesel is used as the base diesel, the volume ratio of diesel to ethanol is 9:1, and the addition ratio of co-solvent is 1%. The added co-solvent is a compound of dodecyl alcohol and tetradecyl alcohol-castor oil in a certain proportion, and the ratio by volume is: dodecyl alcohol: tetradecyl alcohol: castor oil=2:1:1. The preparation method and test results are the same as in Example 1.
若采用按体积比：十二碳醇∶十四碳醇∶蓖麻油＝1∶2∶1，试验结果与实施例1相同。若采用按体积比：十二碳醇∶十四碳醇∶蓖麻油＝1∶1∶2，试验结果与实施例1基本相同；助溶剂添加比例增加为1.5％，试验结果与实施例1相同。If adopting by volume ratio: dodecyl alcohol: tetradecyl alcohol: castor oil=1: 2: 1, test result is identical with embodiment 1. If adopting by volume ratio: dodecyl alcohol: tetradecyl alcohol: castor oil=1: 1: 2, test result is basically the same as embodiment 1; Cosolvent addition ratio increases to 1.5%, test result is identical with embodiment 1 .
实施例4Example 4
以-20#柴油为基础柴油，柴油与乙醇体积比为9∶1，助溶剂添加比例为0.5％。所加助溶剂为醇醚-蓖麻油按一定比例的复合物，前者的体积比率为75％，蓖麻油为25％。制备方法及试验结果同实施例1。-20# diesel is used as the base diesel, the volume ratio of diesel to ethanol is 9:1, and the addition ratio of co-solvent is 0.5%. The added co-solvent is a compound of alcohol ether-castor oil in a certain proportion, the volume ratio of the former is 75%, and that of castor oil is 25%. The preparation method and test results are the same as in Example 1.
实施例5Example 5
以-35#柴油为基础柴油，柴油与乙醇体积比为8.5∶1.5，助溶剂添加比例为1.5％。所加助溶剂为C12-14醇、C8-10醇和蓖麻油按一定比例的复合物，其中C12-14醇、C8-10醇各为25％，蓖麻油为50％。制备方法及试验结果同实施例1。-35# diesel is used as the base diesel, the volume ratio of diesel to ethanol is 8.5:1.5, and the addition ratio of co-solvent is 1.5%. The added co-solvent is a complex of C12-14 alcohol, C8-10 alcohol and castor oil in a certain proportion, wherein the C12-14 alcohol and C8-10 alcohol are each 25%, and the castor oil is 50%. The preparation method and test results are the same as in Example 1.
实施例6Example 6
以-35#柴油为基础柴油，柴油与乙醇体积比为8∶2，助溶剂添加比例为5％。所加助溶剂为C12-14醇、C8-10醇和蓖麻油按一定此例的复合物，其中C12-14醇、C8-10醇各为25％，蓖麻油为50％。制备方法及试验结果同实施例1。-35# diesel is used as the base diesel, the volume ratio of diesel to ethanol is 8:2, and the addition ratio of co-solvent is 5%. Added solubilizer is C 12-14 alcohol, C 8-10 alcohol and castor oil according to the compound of this example, wherein C 12-14 alcohol, C 8-10 alcohol are each 25%, and castor oil is 50%. The preparation method and test results are the same as in Example 1.
实施例7Example 7
以-35#柴油为基础柴油，柴油与乙醇体积比为8.5∶1.5，助溶剂添加比例为1.5％。所加助溶剂为十一碳醇和蓖麻油按一定比例的复合物，其中十一碳醇占75％，蓖麻油占25％。制备方法及试验结果同实施例1。-35# diesel is used as the base diesel, the volume ratio of diesel to ethanol is 8.5:1.5, and the addition ratio of co-solvent is 1.5%. The added co-solvent is a compound of undecyl alcohol and castor oil in a certain proportion, wherein the undecyl alcohol accounts for 75%, and the castor oil accounts for 25%. The preparation method and test results are the same as in Example 1.
将助溶剂中的十一碳醇改变为二十碳醇，二十碳醇与蓖麻油的体积比不变，试验结果与十一碳醇时是相同的。The undecyl alcohol in the cosolvent is changed to eicosyl alcohol, the volume ratio of eicosyl alcohol and castor oil is constant, and the test result is the same as the undecyl alcohol.
实施例8Example 8
以-20#柴油为基础柴油，柴油与乙醇体积比为9∶1，助溶剂添加比例为0.2％。所加助溶剂为十二碳醇-蓖麻油按一定比例的复合物，按体积比率为：十二碳醇85％；蓖麻油为15％。制备方法及试验结果同实施例1。本实施例中助溶剂添加量比较少，但助溶剂中的长链脂肪醇比例比较高。-20# diesel is used as the base diesel, the volume ratio of diesel to ethanol is 9:1, and the addition ratio of co-solvent is 0.2%. The added co-solvent is a compound of dodecyl alcohol-castor oil in a certain proportion, and the ratio by volume is: dodecyl alcohol 85%; castor oil 15%. The preparation method and test results are the same as in Example 1. In this example, the amount of co-solvent added is relatively small, but the proportion of long-chain fatty alcohol in the co-solvent is relatively high.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1098765A (en) * | 1989-11-22 | 1995-02-15 | 罗德菲·W·冈诺尔曼 | Aqueous fuel for internal combustion engines and method of fueling |
| CN1339058A (en) * | 1998-11-23 | 2002-03-06 | 纯能源公司 | Diesel fuel composition |
| CN1443831A (en) * | 2003-03-28 | 2003-09-24 | 清华大学 | Diesel oil mixed fuel |
| CN1473912A (en) * | 2002-08-05 | 2004-02-11 | 中国科学院生态环境研究中心 | Preparation and Application of Ethanol-Diesel Oil Compatible in Any Proportion |
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| CN1098765A (en) * | 1989-11-22 | 1995-02-15 | 罗德菲·W·冈诺尔曼 | Aqueous fuel for internal combustion engines and method of fueling |
| CN1339058A (en) * | 1998-11-23 | 2002-03-06 | 纯能源公司 | Diesel fuel composition |
| CN1473912A (en) * | 2002-08-05 | 2004-02-11 | 中国科学院生态环境研究中心 | Preparation and Application of Ethanol-Diesel Oil Compatible in Any Proportion |
| CN1443831A (en) * | 2003-03-28 | 2003-09-24 | 清华大学 | Diesel oil mixed fuel |
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