伯伯版本專英長到死論文翻譯(生物柴油)(參考版)
2025-04-10 03:12本頁面
【正文】 aten.1. used as an ointment.oate/ (o180。residue in the triglyceride with the [] group in the FAME (biodiesel). The upper methyl oleate oleateer the lower methanol layer was isolated, the methanol removed in vacuo, and []OD added. The yield was determined by paring the integration of the [] group in the glyceryl glyceryl used to cultivate Taylorella equigenitalis. g), methanol ( g), and an ionic liquid ( g。n.A negatively charged ion, especially the ion that migrates to an anode in electrolysis.[From Greek, neuter present participle of anienai, to go up : ana, ana onnyln.The bivalent radical SO2. Also called sulfuryl. }amide ([[]mim][[]]) to transesterify soyabean oil with primary and secondary alcohols. This resulted in a twophase system at the end of the reaction of biodiesel and a glycerolmethanolionic liquidcatalyst phase. It was noted that the use of tetrafluoroborate and hexafluorophosphate ionic liquids should be avoided due to their deposition. One of the more popular methods in the literature for making biodiesel in ionic liquids is to use acidcatalyzed chemistry based on an intrinsically acidic ionic liquid. The ionic liquids can have acidic functional groups in either the anion or cation. A patent [49] in 2006 claimed a method for subjecting fat and shortchained alcohols to transesterification in the presence of an ionic liquid catalyst, where the cation of the ionic liquid had a S[]H group (viz. sulfoalkylimidizoliums, sulfoalkylpyridiniums, sulfoalkyltriphenylphosphoniums, or sulfoalkylammoniums salts). The top layer contained the product, and the catalyst remained in the bottom layer. This work also appeared as three papers [5052]: these patents and papers are very similar to the earlier procedures described in the above text [45]. The same ionic liquids were also used to transesterify waste oil [53] or soyabean oil [54] with methanol to give biodiesel. An acidic anionic ansilat) USAN contraction for p toluenesulfonate. tosylateUSAN contraction for ptoluenesulfonate. ] in the formation of ethyl ethanoate [43].Bronsted acidcatalyzed reactions The simplest reported way to carry out biodiesel synthesis is to add an acid or base directly to an ionic liquid [46]. The addition of acids, such as triflic acid or 4toluenesulfonic acid, to a range of ionic liquids (neutral, basic, or acidic) was found to catalyze the reaction of FFAs with ethanol [47]. The patent fails to mention that some of the ionic liquid/acid binations are unstable and could lead to the formation of hydrofluoric acid, which is a dangerous material to work with. Dupont et al. [48] added either []C[] or []S[] to 1butyl3methylimidazolium bis{(trifluoromethyl)sulfonyl sulsyin 1butyl3methylimidazolium hexafluorophosphate ([[]mim][[]]) using metal catalysts [42]. These reactions work well initially, but the catalyst bees ineffective when the ionic liquid/catalyst are recycled. Because of the deposition of these ionic liquids, stable Bronsted acidic ionic liquids, where the acid group is in the c
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