METHODS AND APPARATUS FOR PRODUCING BIODIESEL AND PRODUCTS OBTAINED THEREFROM
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United States of America Patent
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Issued Date -
Mar 7, 2024
app pub date -
Aug 23, 2023
filing date -
Aug 25, 2022
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Abstract
Methods and apparatus for economically producing a biodiesel product from feedstocks. Some embodiments comprise using at least one of a crude feedstock pretreatment process and a free fatty acid refining process prior to transesterification and the formation of crude biodiesel and glycerin. The free fatty acid refining process may include introducing the feedstock to glycerolysis to obtain a glycerolysis product then stripping the glycerolysis product to produce a fatty acid distillate and a stripped feedstock. The fatty acid distillate is recycled to the glycerolysis process to create more higher-molecular weight glycerides and the stripped feedstock (mostly di- and tri-glycerides) proceeds to transesterification to make biodiesel.
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