{"id":2564,"date":"2021-08-16T17:49:16","date_gmt":"2021-08-16T09:49:16","guid":{"rendered":"https:\/\/www.htoilmachine.com\/blog\/?p=2564"},"modified":"2021-08-16T17:51:49","modified_gmt":"2021-08-16T09:51:49","slug":"edible-oil-refining-degumming-neutralization","status":"publish","type":"post","link":"https:\/\/www.htoilmachine.com\/blog\/oil-refining\/edible-oil-refining-degumming-neutralization\/","title":{"rendered":"Edible oil Refining – Degumming \/ Neutralization"},"content":{"rendered":"
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One of the key steps in the\u00a0refining process<\/a>\u00a0is the elimination of impurities from crude\u00a0vegetable oils, especially the phosphatides or so-called gums. They need to be removed for two main reasons: they are responsible for high\u00a0refining\u00a0losses and they decompose, darken the oil due to their thermal instability.<\/p>\n<\/div>\n<\/div>\n

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\"Edible<\/div>\n<\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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We Follow Different Routes For Different Oils:<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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<\/i>\u00a0Low FFA Crude Oils:<\/h4>\n

Water Degumming, Neutralization and Water Washing.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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<\/i>\u00a0High FFA Crude Oils:<\/h4>\n

Total Degumming and Water Washing.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Water Degumming<\/h2>\n<\/div>\n<\/div>\n
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In this process,\u00a0crude oil\u00a0is hydrated by mixing calculated amount of water. Since hydrated gums are insoluble in oil, hence it gets precipitated. These hydrated<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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gums are then separated from oil in Centrifugal Separator. In this stage, only hydratable gums are removed. For removal of Non-hydratable gums, the oil is conditioned by acid like phosphoric acid.<\/p>\n<\/div>\n<\/div>\n

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Neutralization<\/h2>\n<\/div>\n<\/div>\n
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In this process, caustic lye is added to acid conditioned oil. It neutralizes free fatty acid, transforming FFA into soap. The\u00a0oil\u00a0is then passed to Centrifugal separator to remove soap from oil. This step also eliminates non-hydratable gums and metal traces.<\/p>\n<\/div>\n<\/div>\n

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Total Degumming<\/h2>\n<\/div>\n<\/div>\n
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The Total\u00a0Degumming<\/strong>\u00a0process involves dispersion of phosphoric acid\/citric acid into the oil, allowing a contact time and then mixing lye in this acid \u2013 oil emulsion followed by 2-3 hrs of retention time. Then the resulting oil is passed to Centrifugal Separator where gums are removed from oil.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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\"Edible<\/div>\n<\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\"Vegetable<\/div>\n<\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Salient Features<\/h2>\n<\/div>\n<\/div>\n
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<\/i>\u00a0Less Consumption of Utilities and Power<\/p>\n

<\/i>\u00a0Low chemical consumption<\/p>\n

<\/i>\u00a0Efficient removal of Phosphatides\/gums<\/p>\n

<\/i>\u00a0Minimum Oil Losses<\/p>\n<\/div>\n<\/div>\n

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<\/i>\u00a0Combi-plant design for Lye refining Total\u00a0Degumming<\/strong><\/p>\n

<\/i>\u00a0HISHEAR, mixer for effective dispersion of reagent<\/p>\n

<\/i>\u00a0Adequate retention time at each stage for efficient separation<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

One of the key steps in the\u00a0refining process\u00a0is the elimination of impurities from crude\u00a0vegetable oils, especially the phosphatides or so-called gums. They need to be removed for two main reasons: they are responsible for high\u00a0refining\u00a0losses and they decompose, darken the oil due to their thermal instability. We Follow Different Routes For Different Oils: \u00a0Low FFA […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"yoast_head":"\nEdible oil Refining - Degumming \/ Neutralization - Edible Oil Expeller Machinery<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.htoilmachine.com\/blog\/oil-refining\/edible-oil-refining-degumming-neutralization\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Edible oil Refining - Degumming \/ Neutralization - Edible Oil Expeller Machinery\" \/>\n<meta property=\"og:description\" content=\"One of the key steps in the\u00a0refining process\u00a0is the elimination of impurities from crude\u00a0vegetable oils, especially the phosphatides or so-called gums. They need to be removed for two main reasons: they are responsible for high\u00a0refining\u00a0losses and they decompose, darken the oil due to their thermal instability. 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