JP4634032B2 - フィッシャートロプシュ製品用一時酸化防止剤 - Google Patents
フィッシャートロプシュ製品用一時酸化防止剤 Download PDFInfo
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/02—Well-defined aliphatic compounds
- C10M2203/022—Well-defined aliphatic compounds saturated
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
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- C10M2203/024—Well-defined aliphatic compounds unsaturated
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/16—Paraffin waxes; Petrolatum, e.g. slack wax
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- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
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Description
a)フィッシャートロプシュ法によってフィッシャートロプシュ製品を合成する段階、
b)有効な量の一時酸化防止剤を添加して、7日後の最終過酸化物価が5ppm未満、好ましくは3ppm未満、最も好ましくは1ppm未満である製品を得る段階、
c)フィッシャートロプシュ製品と酸化防止剤をブレンドして、ブレンドした製品を得る段階、及び
d)酸化を防止しなければならない期間の後に、ブレンドした製品からその酸化防止剤の少なくとも一部を除去する段階を含むフィッシャートロプシュ製品の酸化を抑制する方法である。
a)フィッシャートロプシュ法によってフィッシャートロプシュ製品を合成する段階、
b)有効な量の硫黄を含有する酸化防止剤を添加して、7日後の最終過酸化物価が5ppm未満、好ましくは3ppm未満、最も好ましくは1ppm未満である製品を得る段階、
c)フィッシャートロプシュ製品と酸化防止剤をブレンドして、ブレンドした製品を得る段階、及び
d)酸化を防止しなければならない期間の後に、ブレンドした製品を処理し、その硫黄の少なくとも一部を除去する段階を含むフィッシャートロプシュ製品の酸化を抑制する方法である。
a)フィッシャートロプシュ法によってフィッシャートロプシュ製品を合成する段階、
b)フィッシャートロプシュ製品に対して有効な量の一時酸化防止剤を添加し、1ppmから1wt%の間の一時酸化防止剤、好ましくは10ppmから1000ppmの間の一時酸化防止剤を含む製品を得る段階、
c)フィッシャートロプシュ製品と酸化防止剤をブレンドして、ブレンドした製品を得る段階、及び
d)酸化を防止しなければならない期間の後に、そのブレンドした製品から硫黄の少なくとも一部を除去する段階を含むフィッシャートロプシュ製品の酸化を抑制する方法である。
特記しない限り、本明細書及び特許請求の範囲中で使用される次の用語は以下に示す意味を有する。
2−分岐=22.5ppmでのメチルの面積の半分/A
3−分岐=19.1ppmでの面積又は11.4ppmでの面積(両方ではない)/A
4−分岐=14.0ppm近傍の二重ピークの面積/A
4+分岐=19.6ppmの面積/Aマイナス4−分岐
内部エチル分岐=10.8ppmの面積/A
分子当たりの総分岐(すなわち、分岐指数)は上記面積の合計である。
2−分岐=22.5ppmでのメチルの面積の半分/A=0.30
3−分岐=19.1ppmでの面積又は11.4ppmでの面積(両方ではない)/A=0.28
4−分岐=14.0ppm近傍の二重ピークの面積/A=0.32
4+分岐=19.6ppmの面積/Aマイナス4−分岐=0.14
内部エチル分岐=10.8ppmの面積/A=0.21
このサンプルの分岐指数は1.25であることがわかった。
フィッシャートロプシュ法によって、天然ガスから可燃液体燃料を調製することができる。この調製には、大部分がメタンである天然ガスを一酸化炭素と水素の混合物である合成ガスに変換することが必要である。
本発明は、フィッシャートロプシュ製品の輸送及び貯蔵中に有効な酸化防止剤に対する必要性が増加していることに対処するための酸化防止剤に関するものである。本発明の酸化防止剤は、本来的には環境に優しいフィッシャートロプシュ製品に望ましくない不純物を添加せずに、その酸化を防止するために有効でもある。
RSxR’ 式I
ただし、式中、R及びR’は独立に直鎖アルキル、分岐アルキル、又はシクロアルキルであり、xは1から4、好ましくは1から3の整数である。たとえば、これらの硫黄を含有する化合物にはスルフィド、ジスルフィド、ポリスルフィド、及びこれらの混合物などがある。本発明の一時酸化防止剤としてはジスルフィドが好ましい。スルフィド及びジスルフィドは酸化されやすい製品に対する有効な酸化防止剤であり、優れた酸化防止能を示す。Gruse及びStevensによる著書「Chemical Technology of Petroleum」第3版、1960年、299頁を参照されたい。
本発明はまた、フィッシャートロプシュ製品の酸化を抑制する方法に関する。1つの方法はフィッシャートロプシュ法によってフィッシャートロプシュ製品を合成することを含む。フィッシャートロプシュ法から回収される製品はC5からC20+の範囲に及び、1種又は複数の製品分画に分配される。フィシャートロプシュ法では、一般に蒸留によってフィシャートロプシュ製品を分離する。
本発明を以下の例示的実施例によってさらに説明するが、実施例に限定するものではない。
Claims (12)
- ブレンドした炭化水素系製品であって、
a)フィッシャートロプシュ由来製品、及び
b)1ppmから1wt%の一時酸化防止剤
を含み、
前記一時酸化防止剤が、前記ブレンドした炭化水素系製品中に存在する唯一の酸化防止剤であり、スイートニング由来酸化防止剤であり、前記フィッシャートロプシュ由来製品よりも揮発性が高く、硫黄を含有する酸化防止剤であり、かつ、式I
RS x R’ (式I)
の化合物であって、R及びR’が直鎖アルキル、分岐アルキル、及びシクロアルキルからなる群から独立に選択され、xが1から4の整数である、
上記ブレンドした炭化水素系製品。 - フィッシャートロプシュ由来製品が、フィッシャートロプシュナフサ、フィッシャートロプシュジェット燃料、フィッシャートロプシュディーゼル燃料、フィッシャートロプシュ溶剤、フィッシャートロプシュ潤滑基剤、フィッシャートロプシュ潤滑基油、フィッシャートロプシュLPG、フィッシャートロプシュ合成原油、及びこれらの混合物からなる群から選択される、請求項1に記載のブレンドした炭化水素系製品。
- 一時酸化防止剤がフィッシャートロプシュ製品の5%点よりも少なくとも5.6℃(10°F)低い中間沸点を有する、請求項1に記載のブレンドした炭化水素系製品。
- 一時酸化防止剤がフィッシャートロプシュ製品の5%点よりも少なくとも11.1℃(20°F)低い中間沸点を有する、請求項3に記載のブレンドした炭化水素系製品。
- 一時酸化防止剤がフィッシャートロプシュ製品の5%点よりも少なくとも27.8℃(50°F)低い中間沸点を有する、請求項4に記載のブレンドした炭化水素系製品。
- xが2である、請求項1に記載のブレンドした炭化水素系製品。
- 酸化防止剤が、ジメチルジスルフィド、メチルエチルジスルフィド、ジエチルジスルフィド、及びこれらの混合物からなる群から選択される、請求項1に記載のブレンドした炭化水素系製品。
- ブレンドした炭化水素系製品であって、
a)フィッシャートロプシュ由来製品、及び
b)1ppmから1wt%の、硫黄を含有する一時酸化防止剤
を含有し、
前記硫黄を含有する一時酸化防止剤が、前記ブレンドした炭化水素系製品中に存在する唯一の酸化防止剤であり、スイートニング由来酸化防止剤であり、前記フィッシャートロプシュ由来製品よりも揮発性が高く、かつ、式I
RS x R’ (式I)
の化合物であって、R及びR’が直鎖アルキル、分岐アルキル、及びシクロアルキルからなる群から独立に選択され、xが1から4の整数であり、かつ、
前記ブレンドした炭化水素系製品の硫黄含量が1ppmを超える、
上記ブレンドした炭化水素系製品。 - xが2である、請求項8に記載のブレンドした炭化水素系製品。
- 一時酸化防止剤がフィッシャートロプシュ製品の5%点よりも少なくとも5.6℃(10°F)低い中間沸点を有する、請求項8に記載のブレンドした炭化水素系製品。
- 一時酸化防止剤がフィッシャートロプシュ製品の5%点よりも少なくとも11.1℃(20°F)低い中間沸点を有する、請求項10に記載のブレンドした炭化水素系製品。
- 一時酸化防止剤がフィッシャートロプシュ製品の5%点よりも少なくとも27.8℃(50°F)低い中間沸点を有する、請求項11に記載のブレンドした炭化水素系製品。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/882,675 US6878854B2 (en) | 2001-06-15 | 2001-06-15 | Temporary antioxidants for Fischer-Tropsch products |
PCT/US2002/015723 WO2002102944A1 (en) | 2001-06-15 | 2002-05-16 | Temporary antioxydants for fischer-tropsch products |
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Publication Number | Publication Date |
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JP2005510582A JP2005510582A (ja) | 2005-04-21 |
JP2005510582A5 JP2005510582A5 (ja) | 2005-12-22 |
JP4634032B2 true JP4634032B2 (ja) | 2011-02-16 |
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JP2003506400A Expired - Fee Related JP4634032B2 (ja) | 2001-06-15 | 2002-05-16 | フィッシャートロプシュ製品用一時酸化防止剤 |
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US (1) | US6878854B2 (ja) |
JP (1) | JP4634032B2 (ja) |
AU (1) | AU785219B2 (ja) |
BR (1) | BR0210394A (ja) |
GB (1) | GB2380488B (ja) |
NL (1) | NL1020875C2 (ja) |
WO (1) | WO2002102944A1 (ja) |
ZA (1) | ZA200204631B (ja) |
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US7179364B2 (en) * | 2003-01-31 | 2007-02-20 | Chevron U.S.A. Inc. | Production of stable olefinic Fischer-Tropsch fuels with minimum hydrogen consumption |
US7179311B2 (en) | 2003-01-31 | 2007-02-20 | Chevron U.S.A. Inc. | Stable olefinic, low sulfur diesel fuels |
US7479168B2 (en) | 2003-01-31 | 2009-01-20 | Chevron U.S.A. Inc. | Stable low-sulfur diesel blend of an olefinic blend component, a low-sulfur blend component, and a sulfur-free antioxidant |
AU2004200235B2 (en) * | 2003-01-31 | 2009-12-03 | Chevron U.S.A. Inc. | Stable olefinic, low sulfur diesel fuels |
US7674364B2 (en) * | 2005-03-11 | 2010-03-09 | Chevron U.S.A. Inc. | Hydraulic fluid compositions and preparation thereof |
US20070293408A1 (en) * | 2005-03-11 | 2007-12-20 | Chevron Corporation | Hydraulic Fluid Compositions and Preparation Thereof |
US20080053868A1 (en) * | 2005-06-22 | 2008-03-06 | Chevron U.S.A. Inc. | Engine oil compositions and preparation thereof |
TW200906940A (en) * | 2007-04-16 | 2009-02-16 | Nippon Catalytic Chem Ind | Organic polymer fine particle having excellent heat resistance, method for producing the same, and member for optical use using the same |
US20090036546A1 (en) * | 2007-07-31 | 2009-02-05 | Chevron U.S.A. Inc. | Medicinal Oil Compositions, Preparations, and Applications Thereof |
US20090036337A1 (en) * | 2007-07-31 | 2009-02-05 | Chevron U.S.A. Inc. | Electrical Insulating Oil Compositions and Preparation Thereof |
US20090036333A1 (en) * | 2007-07-31 | 2009-02-05 | Chevron U.S.A. Inc. | Metalworking Fluid Compositions and Preparation Thereof |
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2001
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- 2002-05-31 AU AU45746/02A patent/AU785219B2/en not_active Ceased
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- 2002-06-10 ZA ZA200204631A patent/ZA200204631B/xx unknown
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US6878854B2 (en) | 2005-04-12 |
NL1020875A1 (nl) | 2002-12-17 |
GB0212724D0 (en) | 2002-07-10 |
ZA200204631B (en) | 2003-02-13 |
GB2380488A (en) | 2003-04-09 |
WO2002102944A1 (en) | 2002-12-27 |
AU4574602A (en) | 2002-12-19 |
BR0210394A (pt) | 2004-08-10 |
GB2380488B (en) | 2006-01-18 |
NL1020875C2 (nl) | 2003-05-20 |
JP2005510582A (ja) | 2005-04-21 |
AU785219B2 (en) | 2006-11-09 |
US20020193645A1 (en) | 2002-12-19 |
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