JP2004026738A5 - - Google Patents
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- JP2004026738A5 JP2004026738A5 JP2002187001A JP2002187001A JP2004026738A5 JP 2004026738 A5 JP2004026738 A5 JP 2004026738A5 JP 2002187001 A JP2002187001 A JP 2002187001A JP 2002187001 A JP2002187001 A JP 2002187001A JP 2004026738 A5 JP2004026738 A5 JP 2004026738A5
- Authority
- JP
- Japan
- Prior art keywords
- fatty acid
- lower alkyl
- alkyl ester
- producing
- lower alcohol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Description
【特許請求の範囲】
【請求項1】
脂肪酸と低級アルコールとを無触媒エステル化反応させて脂肪酸低級アルキルエステルを製造する方法であって、該脂肪酸を反応缶中に仕込んだ後、該低級アルコールをガス状又は液状で、連続的又は間欠的に反応缶底部に導入し、加圧下、生成水を該低級アルコールと共に連続的又は間欠的に系外に除去しながら、該低級アルコール−生成水の混合蒸気中の脂肪酸及び/又は脂肪酸低級アルキルエステルの蒸気を分縮器により凝縮させ、回収した脂肪酸及び/又は脂肪酸低級アルキルエステルを反応系内に戻して、循環させながらエステル化反応することを特徴とする脂肪酸低級アルキルエステルの製造方法。
【請求項2】
水の含有量が1.0重量%以下の低級アルコールを導入することを特徴とする請求項1に記載の脂肪酸低級アルキルエステルの製造方法。
【請求項3】
エステル化反応粗物の酸価が20以下に到達後、水の含有量が1.0重量%以下の低級アルコールを導入することを特徴とする請求項1又は2に記載の脂肪酸低級アルキルエステルの製造方法。
【請求項4】
エステル化反応粗物の酸価が20以下に到達後、水の含有量が1.0重量%以下の低級アルコールを導入した際に発生する回収低級アルコールをそのままエステル化反応粗物の酸価が20以上の該反応粗物に導入することを特徴とする請求項1〜3のいずれかに記載の脂肪酸低級アルキルエステルの製造方法。
【請求項5】
エステル化反応粗物の酸価が5以下に到達後、水の含有量が0.2重量%以下の低級アルコールを導入することを特徴とする請求項1〜4のいずれかに記載の脂肪酸低級アルキルエステルの製造方法。
【請求項6】
低級アルコールをエステル化反応粗物1tに対して、0.1〜0.4t/hを導入することを特徴とする請求項1〜5のいずれかに記載の脂肪酸低級アルキルエステルの製造方法。
【請求項7】
反応圧力が0.2〜5MPaであり、反応温度が200〜300℃であることを特徴とする請求項1〜6のいずれかに記載の脂肪酸低級アルキルエステルの製造方法。
【請求項8】
脂肪酸が炭素数8〜36の飽和脂肪酸及び/又は不飽和脂肪酸であり、低級アルコールがメチルアルコールであることを特徴とする請求項1〜7のいずれかに記載の脂肪酸低級アルキルエステルの製造方法。
[Claims]
(1)
A method for producing a fatty acid lower alkyl ester by subjecting a fatty acid and a lower alcohol to a non-catalytic esterification reaction. The fatty acid and / or fatty acid lower alkyl in the mixed vapor of the lower alcohol-produced water while continuously or intermittently removing the produced water from the system together with the lower alcohol under pressure under pressure. A method for producing a fatty acid lower alkyl ester, comprising condensing ester vapor with a decomposer, returning the recovered fatty acid and / or fatty acid lower alkyl ester to the reaction system, and performing an esterification reaction while circulating.
(2)
The method for producing a fatty acid lower alkyl ester according to claim 1, wherein a lower alcohol having a water content of 1.0% by weight or less is introduced.
(3)
3. The fatty acid lower alkyl ester according to claim 1, wherein a lower alcohol having a water content of 1.0% by weight or less is introduced after the acid value of the esterification reaction crude reaches 20 or less. Production method.
(4)
After the acid value of the crude esterification reaction reaches 20 or less, the acid value of the crude esterification reaction product is reduced to the recovered lower alcohol generated when a lower alcohol having a water content of 1.0% by weight or less is introduced. The method for producing a lower alkyl ester of a fatty acid according to any one of claims 1 to 3, wherein the method is introduced into 20 or more of the reaction crude products.
(5)
The lower fatty acid according to any one of claims 1 to 4, wherein a lower alcohol having a water content of 0.2% by weight or less is introduced after the acid value of the crude esterification reaction reaches 5 or less. A method for producing an alkyl ester.
6.
The method for producing a lower alkyl fatty acid ester according to any one of claims 1 to 5 , wherein the lower alcohol is introduced in an amount of 0.1 to 0.4 t / h based on 1 t of the crude esterification reaction.
7.
The method according to any one of claims 1 to 6 , wherein the reaction pressure is 0.2 to 5 MPa and the reaction temperature is 200 to 300 ° C.
Claim 8.
The method for producing a fatty acid lower alkyl ester according to any one of claims 1 to 7, wherein the fatty acid is a saturated fatty acid having 8 to 36 carbon atoms and / or an unsaturated fatty acid, and the lower alcohol is methyl alcohol.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002187001A JP3951832B2 (en) | 2002-06-27 | 2002-06-27 | Method for producing fatty acid ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002187001A JP3951832B2 (en) | 2002-06-27 | 2002-06-27 | Method for producing fatty acid ester |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004026738A JP2004026738A (en) | 2004-01-29 |
JP2004026738A5 true JP2004026738A5 (en) | 2007-04-12 |
JP3951832B2 JP3951832B2 (en) | 2007-08-01 |
Family
ID=31182167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002187001A Expired - Fee Related JP3951832B2 (en) | 2002-06-27 | 2002-06-27 | Method for producing fatty acid ester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3951832B2 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3842273B2 (en) * | 2004-06-14 | 2006-11-08 | 株式会社シー・ディー・エムコンサルティング | Process for producing fatty acid alkyl ester composition |
JP2006036817A (en) * | 2004-07-22 | 2006-02-09 | Kimura Chem Plants Co Ltd | Method and apparatus for producing fatty acid ester |
JP5058459B2 (en) * | 2005-06-29 | 2012-10-24 | 志朗 坂 | Method for producing fatty acid alkyl ester |
KR101265759B1 (en) * | 2006-04-28 | 2013-05-20 | 에스케이케미칼주식회사 | Method and apparatus for preparing fatty acid alkyl ester using fatty acid |
JP5232139B2 (en) * | 2006-04-28 | 2013-07-10 | エスケー ケミカルズ カンパニー リミテッド | Method and apparatus for producing fatty acid alkyl ester using fatty acid |
JP5090676B2 (en) * | 2006-06-30 | 2012-12-05 | 国立大学法人京都大学 | Method for producing fatty acid ester composition |
JP2008031257A (en) * | 2006-07-27 | 2008-02-14 | Asahi Kasei Corp | Method for producing diesel engine fuel |
WO2011108270A1 (en) * | 2010-03-03 | 2011-09-09 | 独立行政法人農業・食品産業技術総合研究機構 | Fatty acid methyl ester production method and system |
JP2014529598A (en) * | 2011-08-24 | 2014-11-13 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | Method for producing mercaptoalkylcarboxylate |
JP6497496B2 (en) * | 2014-06-04 | 2019-04-10 | 日産化学株式会社 | Method for producing multi-branched aliphatic ester |
KR101853036B1 (en) * | 2017-09-12 | 2018-04-27 | 주식회사 광우 | A method for producing a functional synthetic oil using purified fatty acid and a functional synthetic oil using the same |
-
2002
- 2002-06-27 JP JP2002187001A patent/JP3951832B2/en not_active Expired - Fee Related
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