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公开(公告)号：US20070282118A1
公开(公告)日：2007-12-06
申请号：US10585041
申请日：2003-12-30
申请人： Ashok Gupta , Ajay Bhatnagar , Savita Kaul
发明人： Ashok Gupta , Ajay Bhatnagar , Savita Kaul
IPC分类号： C11C3/10
摘要： Fatty acid alkyl esters suitable for use as biodiesel are produced by a single step esterification of free fatty acids and transesterification of triglycerides from vegetable oils or animal fats or combinations thereof with a lower alcohol (e.g. methanol) in presence of alkyl Tin oxide as catalyst. The ester thus produced is purified by distillation, treatment with an adsorbent, washing with water or combination thereof to give esters suitable for use as biodiesel.
摘要翻译： 适合用作生物柴油的脂肪酸烷基酯是通过游离脂肪酸的单步酯化和甘油三酯从植物油或动物脂肪或其组合与低级醇（例如甲醇）在烷基氧化锡作为催化剂的存在下酯交换而产生的。 由此产生的酯通过蒸馏纯化，用吸附剂处理，用水或其组合洗涤，得到适于用作生物柴油的酯。
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公开(公告)号：US20120255223A1
公开(公告)日：2012-10-11
申请号：US13395871
申请日：2010-03-19
申请人： Savita Kaul , Neeraj Atray , Ajay Bhatnagar
发明人： Savita Kaul , Neeraj Atray , Ajay Bhatnagar
IPC分类号： C10L1/188
摘要： The present invention describes a process for converting high free fatty acid containing feed stocks (FFA 20-85%) like palm fatty acid distillate (PFAD), restaurant grease, waste cooking oil, Soya deodistillate, acid oil, jatropha curcas oil, mohua oil etc. to biodiesel, which involves esterification of FFA containing oil with lower alcohols like methanol, ethanol, propanol etc. in presence of macro reticular and gel type acidic heterogenous resin as catalyst to bring down acid value in the range of 1-2 mgKOH/g followed by transesterification in presence of homogeneous basic catalyst metal oxides, hydroxides and alkoxides like sodium hydroxide, potassium hydroxide, sodium methoxide, potassium methoxide etc. and separation of biodiesel and glycerine.
摘要翻译： 本发明描述了一种将棕榈脂肪酸馏出物（PFAD），食用油脂，废食用油，大豆脱脂酸，酸性油，麻风树油，摩卡油（FFA 20-85％）的高游离脂肪酸 等等生物柴油，其中包括含有FFA的油与低级醇如甲醇，乙醇，丙醇等在大网状和凝胶型酸性异种树脂作为催化剂的存在下降解酸值在1-2mgKOH / 然后在均相碱性催化剂金属氧化物，氢氧化物和醇盐如氢氧化钠，氢氧化钾，甲醇钠，甲醇钾等存在下进行酯交换反应，并分离生物柴油和甘油。
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