JP2004524414A - Compressor lubricant composition - Google Patents
Compressor lubricant composition Download PDFInfo
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- JP2004524414A JP2004524414A JP2002576578A JP2002576578A JP2004524414A JP 2004524414 A JP2004524414 A JP 2004524414A JP 2002576578 A JP2002576578 A JP 2002576578A JP 2002576578 A JP2002576578 A JP 2002576578A JP 2004524414 A JP2004524414 A JP 2004524414A
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- lubricant composition
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- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
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- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
- C10M107/34—Polyoxyalkylenes
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- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/34—Lubricating-sealants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/36—Release agents or mold release agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/38—Conveyors or chain belts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/40—Generators or electric motors in oil or gas winning field
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/42—Flashing oils or marking oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/44—Super vacuum or supercritical use
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/50—Medical uses
Abstract
ポリアルキレングリコール基油成分を有し、耐摩剤、抗酸化剤、及び金属不活性化剤、並びに任意に耐蝕剤、及び蒸気相耐蝕剤を含む、スライディングベーン式回転圧縮機において使用する潤滑剤組成物。ポリアルキレングリコール基油成分は、5個以下の炭素原子を有する化合物により重合開始された、エチレンオキシド(EO):プロピレンオキシド(PO)の比が3:1から1:3、好ましくは1.5:1から1:1.5の範囲にあるエチレンオキシドとプロピレンオキシドとのランダム共重合体である。A lubricant composition for use in a sliding vane rotary compressor having a polyalkylene glycol base oil component and comprising a lubricant, an antioxidant, and a metal deactivator, and optionally a corrosion inhibitor, and a vapor phase corrosion inhibitor. object. The polyalkylene glycol base oil component is initiated by a compound having 5 or less carbon atoms and has a ratio of ethylene oxide (EO): propylene oxide (PO) of 3: 1 to 1: 3, preferably 1.5: It is a random copolymer of ethylene oxide and propylene oxide ranging from 1 to 1: 1.5.
Description
【技術分野】
【0001】
本発明は、ガス圧縮機、特にスライディングベーン式回転圧縮機(sliding-vane rotary compressors)において使用する潤滑剤組成物に関する。
【0002】
多くの用途において直接に使用するため、あるいはタンク又はパイプラインで移送するために空気、二酸化炭素、水素、ヘリウム及び炭化水素ガスを圧縮することが必要となる。その炭化水素ガスには、圧縮された天然ガス、地中埋設ガス、バイオガス、ダイジェスターガス(digester gas)及び坑口ガスが含まれる。これらの用途において、可動部分を有する圧縮機において、摩擦及び摩耗を減少し、又所定の設計においては密封効果を具備することが必要とされる。多くのガスは、それらの供給源に基づいて、圧縮機が作動する環境を過酷なものとする上で有意な性質の不純物を含む。例えば、炭化水素ガスは、しばしば20%までの硫化水素及び/又は50%までの二酸化炭素を含む。
【0003】
ガスを圧縮する圧縮機には、スクリュー式、往復式、スクロール式、及びスライディングベーン式回転圧縮機が含まれる。これらの圧縮機を潤滑する潤滑剤には、鉱油、白油、ポリαオレフィン(PAOs)及びポリアルキレングリコール(PAGs)が含まれる。PAGsのような合成潤滑剤は、スクリュー式及び往復式圧縮機において成功裏に使用されるが、スクロール式及びスライディングベーン式回転圧縮機においてそれらを使用することは上手くいかなかった。これは、恐らくそれらの圧縮機において加えられる高付加の所為、特にスライディングベーン式回転圧縮機のベーン先端において、特にガイド孔を往復動するベーンの側面に沿って加えられる、スライディングベーン式回転圧縮機における高負荷の所為であろう。これらの問題は、摩耗を生ずる炭化水素ガス中の酸性不純物により悪化する。
【0004】
スライディングベーン式回転圧縮機については、その潤滑剤は、典型的には鉱油であった。しかしながら、圧縮されたガスにより潤滑剤が希釈されるので、特に炭化水素ガスの場合、潤滑剤の効率性が制約されて、圧縮機寿命が相対的に短く、例えば2000時間である。現在までそれに代わるものとして使用されている潤滑剤は、(所定の炭化水素と共にのみ使用されるが)ポリαオレフィン潤滑剤である。
【0005】
明らかに、補給の点から、多くのガス用途の圧縮機に使用できる潤滑剤組成物を有することが有利である。
【発明の開示】
【発明が解決しようとする課題】
【0006】
本発明の目的は、スライディングベーン式回転圧縮機において使用するのに適した潤滑剤組成物を提供することである。
【課題を解決するための手段】
【0007】
本発明において、スライディングベーン式回転圧縮機において使用される潤滑剤組成物は、
a)ポリアルキレングリコールが、5個以下の炭素原子を有する化合物により重合開始された、エチレンオキシド(EO):プロピレンオキシド(PO)の比が3:1から1:3の範囲にあるエチレンオキシドとプロピレンオキシドとのランダム共重合体を含む、ポリアルキレングリコール基油成分、
b)組成物の全質量に基づいて0.01%〜10%の耐摩剤(antiwear additive)、
c)組成物の全質量に基づいて0.05%〜5%の抗酸化剤(antioxidant)、
d)組成物の全質量に基づいて0%〜1%の金属不活性化剤(metal passivator)、
e)組成物の全質量に基づいて0%〜2%の耐蝕剤(anticorrosion agent)、及び
f)組成物の全質量に基づいて0%〜2%の蒸気相耐蝕剤(anticorrosion agent)、
を含む。
【0008】
ポリアルキレングリコール及びその製造方法は、「合成潤滑剤及び高性能ファンクショナル(Synthetic Lubricants and High-Performance Functional)第2版、Leslie R Rudnick及びRonald L Shbkin編、1999、0−8247−0194−1」に記載されている。特に、その刊行物の第1部第6節が参考となる。
【0009】
本発明において好ましいポリアルキレングリコールは、ポリアルキレングリコールの動粘度が圧縮機の運転温度及び圧力で、少なくとも10センチストークス、より好ましくは少なくとも12センチストークスとなるような分子量を有する。特に、本発明において好ましいポリアルキレングリコールは、100℃において、動粘度が少なくとも10cSt、より好ましくは12cStである。
【0010】
本発明において好ましいポリアルキレングリコールは、2:1から1:2の範囲にある(EO):プロピレンオキシド(PO)の比を有し、より好ましくは1.5:1から1:1.5の範囲、特に1:1を有する。更に、本発明において好ましいポリアルキレングリコールは、メタノール又はブタノールにより重合開始される。
【0011】
好ましいポリアルキレングリコールは、粘度指数が少なくとも150、より好ましくは少なくとも200である。本発明における好ましい組成物は、組成物中に粘度改善剤を有していない。
【0012】
好ましいポリアルキレングリコールは、−10℃未満、より好ましくは−20℃未満、及び特に−30℃未満の流動点を有する。
【0013】
好ましいポリアルキレングリコールは、0.2mgKOH/gの酸価を有する。
【0014】
好ましくは、潤滑剤組成物は、組成物の全質量に基づいて0.1%〜5%、より特に0.5%〜2.5%の耐摩剤を含む。
【0015】
好ましい耐摩剤は、ホスフェート、ホスファイト、チオホスフェート、チオホスファイト、ジチオカルボメート、アミンホスフェート及びそれらの混合物から選択される。
【0016】
好ましくは、潤滑剤組成物は、組成物の全質量に基づいて0.5%〜2.5%の抗酸化剤を含む。
【0017】
好ましい抗酸化剤は、高温抗酸化剤、例えばアミン系無灰抗酸化剤、アルキル化フェニルナフチルアミン、アルキル化ジフェニルアミン、重合ヒドロキシキノリン、イミノジベンジル、及び中温抗酸化剤、例えばガラート(gallates)、立体障害フェノール系抗酸化剤、ジフェノール系抗酸化剤及びそれらの混合物から選択される。適切な高温抗酸化剤の例としては、p,p−ジオクチルジフェニルアミン、オクチルフェニルナフチルアミン、重合1,2−ジヒドロ−2,2,4−トリメチルキノリンが含まれる。適切な中温抗酸化剤の例としては、6−t−ブチルフェノール、2,6−ジブチルフェノール、及び4−メチル−2,6−ジ−t−ブチルフェノール、2,6−ジ−t−ブチル−α−ジメチルアミノ−p−クレゾール、没食子酸プロピル(propyl gallate)、及び4,4’−メチレン−ビス(1,1−ジメチル−エチル)−フェノールが含まれる。
【0018】
金属不活性化剤には、銅、ホワイトメタル、つまり亜鉛、アルミニウム等、及びそれらの合金、並びに鉛含有合金を含む合金が含まれる。
【0019】
好ましくは、潤滑剤組成物は、組成物の全質量に基づいて0.05%〜0.5%の金属不活性化剤を含む。適切な金属不活性化剤には、ガラート、イミダゾール、ベンゾイミダゾール、ピラゾール、ベンゾトリアゾール、トルトリアゾール、2−メチルベンゾイミダゾール、3,5−ジメチルピラゾール、メチレンビス−ベンゾトリアゾール又はそれらの混合物が含まれる。
【0020】
好ましくは、腐食(corrosion)の防止のための物質を選択する等の他の手段がない場合、潤滑剤組成物には、組成物の全質量に基づいて0.1%〜2%、特に0.1〜0.5の無灰耐蝕剤が含まれる。適切な無灰耐蝕剤には、アミンナフタレンスルホネート、アミンホスフェート、アルケニルコハク酸半エステル、有機ポリカルボン酸又はこれらの混合物が含まれる。特に、エチレンジアミンジノニルナフタレンスルホナネート及びリン酸モノヘキシルエステルの脂肪族アミン塩、並びにそれらの混合物である。
【0021】
好ましくは、腐食の防止のための物質を選択する等の他の手段がない場合で、特に酸性不純物(サワーガス)を含むガス用途においては、潤滑剤組成物には、組成物の全質量に基づいて0.05%〜2%、より特に0.1〜0.5の蒸気相耐蝕剤(vapour phase anticorrosion additive)が含まれる。圧縮機の一部は、潤滑剤組成物に浸液されるが、ガス、及びそのガスが運ぶ攻撃的な不純物に曝される圧縮機の一部及びそれに結合したパイプ装置等がある。蒸気相耐蝕剤は、圧縮機の運転温度で潤滑剤組成物から蒸発して、他の曝露された表面を被覆して攻撃から守る。適切な蒸気相耐蝕剤の例として、ジカルボン酸、シリコーン、シロキサン、シラン、シリケート、揮発性アミン又はこれらの混合物が含まれる。特に、ジカルボン酸は、C7以上の酸、例えばドデカン二酸であり、ケイ素含有化合物には、デカメチルシクロペンタシロキサン、ジメチルシロキサンペンタマー、トリメチルシリル(2,6−ジ(トリメチルシロキシ)フェニル)メタノエート、トリエトキシ(3,3,4,4,5,5,6,6,7,7,8,8,8−トリデカフルオロオクチル)シラン、及びテトラエチルシリケートが含まれ、また揮発性アミンには、一級アミン、トリプロピルアミン、及びエチル−ジ−2−エチルヘキシルアミンが含まれる。
【0022】
本発明の潤滑剤組成物は、又、公知の機能性を有する他の一種以上の潤滑剤を0.0001〜20%、より好ましくは0.01〜10%、特に好ましくは0.01〜5%の含有量で含むことができる。適切な添加剤には、極限加圧剤(extreme pressure agents)、酸捕捉剤、気泡剤、消泡剤、安定剤、界面活性剤、潤滑性改善剤又は油性剤、及び摩擦改善剤が含まれる。
【0023】
本発明の他の側面において、本発明は、
a)ポリアルキレングリコールが、炭素数5以下の化合物により重合開始された、エチレンオキシド(EO):プロピレンオキシド(PO)の比が3:1から1:3の範囲にあるエチレンオキシドとプロピレンオキシドとのランダム共重合体を含むポリアルキレングリコール基油成分、
b)組成物の全質量に基づいて0.01%〜10%の耐摩剤、
c)組成物の全質量に基づいて0.05%〜5%の抗酸化剤、
d)組成物の全質量に基づいて0.1%〜1%の金属不活性化剤、
e)組成物の全質量に基づいて0%〜2%の耐蝕剤、及び
f)組成物の全質量に基づいて0%〜2%の蒸気相耐蝕剤、
を含む潤滑剤組成物の、スライディングベーン式回転圧縮機における使用に関する。
【0024】
本発明の他の側面において、回転ベーン圧縮機の潤滑方法は、
a)ポリアルキレングリコールが、炭素数5以下の化合物により重合開始された、エチレンオキシド(EO):プロピレンオキシド(PO)の比が3:1から1:3の範囲にあるエチレンオキシドとプロピレンオキシドとのランダム共重合体を含むポリアルキレングリコール基油成分、
b)組成物の全質量に基づいて0.01%〜10%の耐摩剤、
c)組成物の全質量に基づいて0.05%〜5%の抗酸化剤、
d)組成物の全質量に基づいて0.1%〜1%の金属不活性化剤、
e)組成物の全質量に基づいて0%〜2%の耐蝕剤、及び
f)組成物の全質量に基づいて0%〜2%の蒸気相耐蝕剤、
を含む潤滑剤組成物を使用することを含む。
【0025】
本発明の更に他の側面において、スライディングベーン式回転圧縮機は、
a)ポリアルキレングリコールが、炭素数5以下の化合物により重合開始された、エチレンオキシド(EO):プロピレンオキシド(PO)の比が3:1から1:3の範囲にあるエチレンオキシドとプロピレンオキシドとのランダム共重合体を含むポリアルキレングリコール基油成分、
b)組成物の全質量に基づいて0.01%〜10%の耐摩剤、
c)組成物の全質量に基づいて0.05%〜5%の抗酸化剤、
d)組成物の全質量に基づいて0.1%〜1%の金属不活性化剤、
e)組成物の全質量に基づいて0%〜2%の耐蝕剤、及び
f)組成物の全質量に基づいて0%〜2%の蒸気相耐蝕剤、
を含む潤滑剤組成物が充填される。
【0026】
本発明の特に好ましい実施形態において、スライディングベーン式回転圧縮機に使用される潤滑剤組成物は、
a)ポリアルキレングリコールが、メタノール又はブタノールにより重合開始された、エチレンオキシド(EO):プロピレンオキシド(PO)の比が1.5:1から1:1.5の範囲にあるエチレンオキシドとプロピレンオキシドとのランダム共重合体を含むポリアルキレングリコール基油成分、
b)組成物の全質量に基づいて0.1%〜5%の耐摩剤、
c)組成物の全質量に基づいて0.5%〜2.5%の抗酸化剤、
d)組成物の全質量に基づいて0.1%〜0.5%の金属不活性化剤、
e)組成物の全質量に基づいて0%〜2%の耐蝕剤、及び
f)組成物の全質量に基づいて0%〜0.5%の蒸気相耐蝕剤、
を含む。
【0027】
本発明に係る好ましい潤滑剤組成物は、本質的に前記ポリアルキレングリコール基油成分と添加剤からなる。
【0028】
本発明に係る好ましい潤滑剤組成物は、0.5mgKOH/g未満の酸価を有する。
【0029】
本発明の潤滑剤組成物は、各種のガスのスライディングベーン式回転圧縮機において優れた潤滑性を提供できる。特に、ポリアルキレングリコールは、ガスに対して比較的低い溶解性を有するが、水の吸収能を有する。その低いガス吸収性は、特定の添加剤と共に、確実に、スライディングベーンとその先端とを潤滑性し、又そのベーン先端で、各ベーンの高圧力側と低圧力側を密封できる適正な潤滑剤組成物を提供できる。
【0030】
スライディングベーン式回転圧縮機は、かなりの運転休止期間を有するので、本発明に係る潤滑剤組成物が、圧縮機が冷却されたときにガスから凝縮される水を吸収する性能を有することは、圧縮機に水が遊離状態で残存する場合に比較する場合、その水による金属の腐食を最小化でき、あるいは防止できる。幾つかのガス、例えば炭化水素ガスは、かなりの湿気を持ち、かなりの量の水を装置中に凝縮させて、圧縮機の油溜めにためる傾向にある。本発明の潤滑剤組成物は、圧縮機の通常運転温度にわたり、水と共に単相を形成する。圧縮機の起動後に吸収された水は、潤滑剤組成物の効率性に悪影響をせず、潤滑剤組成物と水の単相は、装置を通じてポンプ輸送されて装置を潤滑する。圧縮機は運転温度にまで加熱するので、吸収された水は、潤滑剤組成物から揮発して、圧縮機を流れるガス流により圧縮機から掃引される。
【0031】
これは、鉱油及びPAO潤滑剤と対称をなしており、鉱油及びPAOは、水に非混和性であり、又それ故、遊離水を圧縮機中に溜めさせることになり、特に酸性環境下に腐食問題を生起し、又潤滑剤の代わりにその水が、圧縮機の起動時に装置を通って、装置を潤滑するためのポンプで給送される問題があり、この水は、圧縮機を潤滑するのに有効でない。
【0032】
本発明に係る潤滑剤組成物は、又、炭化水素ガス及び空気を含む種々のガスのポンプ給送用圧縮機を作動するのに利点を有する。以上のとおり、本発明は、圧縮機製造業者が、多グレード用の分離貯蔵タンクを準備することにより不適当な潤滑剤等を圧縮機に充填する問題を回避できる、一つの等級の潤滑剤ストックのみを必要とするという、大きな補給上の利点を提供できる。
【0033】
スライディングベーン式圧縮機のメンテナンス経費が少ないことは、特にガスブースター用途、とりわけマイクロタービン用途に有用となる。
【0034】
ブースター装置は、空気又はガスを大気圧以上、更にそれ以上の圧力に加圧する。ブースター装置は、多用途を有し、特にオイル及びガス並びに関連する分野に於いて多くの用途を有する。ガスブースティングの例として、油井ガスのパイプラインへの供給、及び天然ガスのガスタービンへの供給がある。これら後者の用途において、圧縮機は、タービンの連続運転に必要とされる流速と圧力でガスを供給するのに使用される。タービンへ供給されるガス中に搬送されるたとえ少量の石油系潤滑剤でも、タービンへのガス供給ノズル中に炭素質堆積物を生成し、流れを規制し、又発火を生じ得る。本発明の潤滑剤組成物が前記物質の搬入が少ないこと、高温安定性であること、及び清浄燃焼性であることにより、特に前記役割に適している。これらの用途において、ガス圧縮は、圧力差、馬力、及びガス分析値に基づいて一段階でも多段階でもよい。
【0035】
本発明について、添付図面及び下記の実施例を参照して、事例により以下に詳細に説明する。
【0036】
図1において、スライディングベーン式回転圧縮機10は、円筒状空腔部14を有するハウジング12を有する。高圧ガス出口18は、ガス入り口16から円周上の離れた位置で空腔部14から伸びる。ローター20は、軸の周りに回転するように空腔部14内に装着され、その軸はローター20がローター20の回転方向で出口18と入り口16の間でスライディング接触するように空腔部14の軸から偏心配置されている。
【0037】
ローターは、円周部に等円周間隔で離間するスロット22を有している。そのスロット22は、ローター20の軸上に中心を持つ円に直交する方向に延長するが、ローター20より小さい直径であり、ここで、スロット22は、ローターの回転方向にローターに対して傾斜している。各スロット22は、ベーン24を装着し、このベーン24は各々、空腔部14に係合するローター20に対して外部方向の遠心力により、スロット22中をスライド可能になっている。
【0038】
運転中、ローター20の回転は、ベーン24を空腔部14に係合するように押し付けられ、隣接するベーン24間で可変ガス圧縮容積部26を画定する。入口16を介してガス圧縮容積部26に入るガスは、ベーン24が出口18に近づくに連れて容積が減少する容積部26が空腔部14内を押しやられると共に、圧縮される。
【0039】
潤滑剤組成物は、圧縮機10中に存在して、ベーンがスロット22中でスライドするに連れてベーン22の側面を潤滑する。潤滑剤組成物は、又、各ベーン22の高圧側と低圧側との間を潤滑し、又十分にシールする。
【0040】
実施例1
本発明の潤滑剤組成物(試料1及び2)は、基油成分としてEO:PO比が1:1の、ブタノールで重合開始されたポリアルキレングリコールであり、表1に示される添加剤を有する。
【0041】
【表1】
【0042】
表中に示された全ての%は、全組成物に基づく質量%である。
【0043】
試料1及び2は、表2中に示される特性を有する。
【0044】
【表2】
【0045】
実施例2
試料1、及び比較試料、つまり試料3−a:商取引名Hydrovane2000でCompair Hydrovaneで入手可能のスライディングベーン式回転圧縮機に使用される商業上入手可能の鉱油組成物、及び試料4:商取引名Compair CS300でCompairから入手可能のスライディングベーン式回転圧縮機に使用される商業上入手可能のナフタレートエステル組成物に対する、炭化水素、例えばヘプタンの効果をテストした。生の試料の粘度を先ず測定することによりテストを実施した。その後、ヘプタンに曝露した後のこれら試料の粘度を測定した。それら試料を試料40mlを測定シリンダー中に注入して、又4ml、つまり10%のヘプタンをシリンダー中に加えることにより、ヘプタンに曝露した。この試料とヘプタンを5分間一緒に撹拌して、その後、1時間分離するままに放置した。その試料から分離したヘプタン層は、その後除去され、試料の粘度が測定された。このテストを、新たな量の試料について、8ml、つまり20%、12ml、つまり30%、及び16ml、つまり40%の含有量のヘプタンを添加して繰り返した。
【0046】
テストされた試料の各々の粘度を、ASTM D445法により40℃で測定した。
【0047】
その結果を表3に示し、又図2に図示する。それから判るように、試料1の粘度は、商業上入手可能の試料3及び4の粘度に比べて、高炭化水素含量においてかなり高いままであり、結果として試料1の潤滑効果は、試料3及び4の潤滑効果に比べて、これらの高含量条件下で優れている。
【0048】
【表3】
【0049】
実施例3
試料1及び3の金属表面からの除去抵抗性を炭化水素について試験した。液体ヘプタンによる洗浄除去される潤滑剤の相対抵抗性を決定するために、簡単な実験方法を開発した。試料あたり5枚の鋼板をホワイトスピリット及びアセトン中で完全に洗浄し、その後吊るして乾燥する。各鋼板を触れないで小数第4位まで秤量する。この清浄で乾燥した鋼板を試料中に印のついたところ迄浸漬し、再度吊るす。1時間後、鋼板を再度秤量する。その結果から、各洗浄後に鋼板上に残される潤滑剤量が算出でき、グラフにプロットできる。この試料片は、その後、ヘプタンに浸漬され、除去され、1時間後、再度秤量された。これを4回繰り返した。この方法を、試料2を用いて新規の試料片により繰り返した。
【0050】
その結果を表4に示し、又図3に図示する。それから判るように、試料片上の試料1の量、及びそのとしての残留潤滑剤組成物の厚さは、試料3のものに比べて、かなり高い。このことは、圧縮機の始動において、特に圧縮機が暫くの間使用されていない場合、特に重要である。この潤滑剤組成物膜の保持により、確実に潤滑すべき表面が潤滑され、金属同士の接触をしないようにされる。
【0051】
【表4】
【0052】
実施例4
運転条件下で熱分解に対する潤滑剤組成物の性能を検査するために、アルミニウム加熱ブロック中のガラス管内に同量の試料1と試料4を入れた。鋼板試料片(76mm×13mm×3mmサイズ)を試料1及び4を含む各々のガラス管中に入れた。これらガラス管を、加熱ブロック外に位置した蒸留水を有するそれぞれ同様の管にシリコーン管を介して結合した。吸収管中の水の機能は、潤滑剤組成物の試料から揮発した分解生成物を吸収することであった。
【0053】
圧縮乾燥窒素を、1リットル/時間の割合で、試料1と4をそれぞれ入れた各管および水を有する各管に順次通す。この試験を175℃で168時間実施した。
【0054】
試験期間後、40℃における動粘度と酸価(中和価)について、これら試料を試験して、ついで潤滑剤組成物の性能評価のために、これらパラメーターの初期測定値と比較した。その酸価測定値は、試料1と試料4に関して回収された水の酸価を示すものであって、その測定結果は、潤滑剤組成物の分解物からの低分子量の酸が試料1及び4から揮発した事実を示している。
【0055】
この結果を表5に示す。
【0056】
【表5】
【0057】
試料1は、試料4に比べて、粘度及び酸価において変化がより小さい。
【0058】
実施例5
Mobil社から入手可能のPAOである、試料1、3、及び4と、Compair社からCompair CS500の取引名で入手可能のスライディングベーン式回転圧縮機で使用されるフタレートエステル組成物である試料5及び6の潤滑剤組成物を、それぞれCopmpair−Hydrovane空気圧縮機に充填した。この圧縮機を、潤滑剤組成物のサンプリングをするための間中断する他は、連続運転した。この組成物の試料を、鉄含有量について分析した。この鉄分の含有量は、圧縮機の摩耗を表わす。この結果を図4に表示する。鉱油の通常のオイル交換間隔は、2000時間とグラフ上に表示される。そのグラフは、2500時間までしか上昇していないが、実際には停止されるまで、合計4000時間、この試験運転が継続された。
【0059】
図4から判るとおり、本発明に従う試料1は、本発明に関連して使用される通常の潤滑剤組成物よりかなり優れた特性を示した。
【0060】
実施例5
試料1を基礎とする仕様を有する潤滑剤組成物を使用したフィールド試験において、攻撃性(酸性)ガス組成物を含む油井用途において使用される圧縮機は、8000時間の使用時間を超えた。同様に、マイクロタービン用途において、圧縮機は10000時間の使用時間を超えた。
【0061】
本発明の潤滑剤組成物により、圧縮機中の潤滑剤を、現存の潤滑剤組成物を使用するのに必要な例えば2000時間の使用間隔よりもっと長い圧縮機使用間隔で、例えば1年で交換可能にできる。
【図面の簡単な説明】
【0062】
【図1】図1は、スライディングベーン式回転圧縮機の横断面を示す。
【図2】図2は、実施例2により得られた結果のグラフ表示である。
【図3】図3は、実施例3により得られた結果のグラフ表示である。
【図4】図4は、実施例5により得られた結果のグラフ表示である。【Technical field】
[0001]
The present invention relates to lubricant compositions for use in gas compressors, especially sliding-vane rotary compressors.
[0002]
It is necessary to compress air, carbon dioxide, hydrogen, helium and hydrocarbon gases for direct use in many applications or for transport in tanks or pipelines. The hydrocarbon gases include compressed natural gas, underground gas, biogas, digester gas and wellhead gas. In these applications, compressors with moving parts are required to reduce friction and wear and to provide a sealing effect in certain designs. Many gases, based on their sources, contain impurities of significant nature in harsh environments in which the compressor operates. For example, hydrocarbon gases often contain up to 20% hydrogen sulfide and / or up to 50% carbon dioxide.
[0003]
Compressors for compressing gas include screw, reciprocating, scroll, and sliding vane rotary compressors. Lubricants that lubricate these compressors include mineral oil, white oil, polyalphaolefins (PAOs) and polyalkylene glycols (PAGs). Synthetic lubricants such as PAGs have been used successfully in screw and reciprocating compressors, but their use in scrolling and sliding vane rotary compressors has not been successful. This is probably due to the high loading added in those compressors, especially at the vane tip of the sliding vane rotary compressor, especially along the side of the vane reciprocating in the guide holes. May be due to the high load on These problems are exacerbated by acidic impurities in the hydrocarbon gas that cause wear.
[0004]
For sliding vane rotary compressors, the lubricant was typically mineral oil. However, since the lubricant is diluted by the compressed gas, especially in the case of hydrocarbon gas, the efficiency of the lubricant is limited and the compressor life is relatively short, for example, 2000 hours. The lubricant used to date as an alternative is a polyalphaolefin lubricant (although used only with certain hydrocarbons).
[0005]
Obviously, from a replenishment point, it would be advantageous to have a lubricant composition that can be used in compressors for many gas applications.
DISCLOSURE OF THE INVENTION
[Problems to be solved by the invention]
[0006]
It is an object of the present invention to provide a lubricant composition suitable for use in a sliding vane rotary compressor.
[Means for Solving the Problems]
[0007]
In the present invention, the lubricant composition used in the sliding vane type rotary compressor,
a) Ethylene oxide and propylene oxide in which the polyalkylene glycol is polymerized by a compound having 5 or less carbon atoms, and the ratio of ethylene oxide (EO): propylene oxide (PO) is in the range of 3: 1 to 1: 3. Including a random copolymer with a polyalkylene glycol base oil component,
b) 0.01% to 10% antiwear additive, based on the total weight of the composition;
c) 0.05% to 5% of an antioxidant, based on the total weight of the composition;
d) 0% to 1% metal passivator, based on the total weight of the composition;
e) 0% to 2% of an anticorrosion agent based on the total weight of the composition; and f) 0% to 2% of a vapor phase anticorrosion agent based on the total weight of the composition;
including.
[0008]
Polyalkylene glycols and their production methods are described in "Synthetic Lubricants and High-Performance Functional, 2nd Edition, Leslie R Rudnick and Ronald L Shbkin, eds., 1999, 0-8247-0194-1". It is described in. In particular, reference is made to Part 1,
[0009]
Preferred polyalkylene glycols in the present invention have a molecular weight such that the kinematic viscosity of the polyalkylene glycol is at least 10 centistokes, more preferably at least 12 centistokes, at the operating temperature and pressure of the compressor. In particular, preferred polyalkylene glycols in the present invention have a kinematic viscosity at 100 ° C. of at least 10 cSt, more preferably 12 cSt.
[0010]
Preferred polyalkylene glycols in the present invention have a ratio of (EO): propylene oxide (PO) in the range of 2: 1 to 1: 2, more preferably 1.5: 1 to 1: 1.5. Range, especially 1: 1. Further, a preferred polyalkylene glycol in the present invention is initiated with methanol or butanol.
[0011]
Preferred polyalkylene glycols have a viscosity index of at least 150, more preferably at least 200. Preferred compositions in the present invention do not have a viscosity improver in the composition.
[0012]
Preferred polyalkylene glycols have a pour point below -10C, more preferably below -20C, and especially below -30C.
[0013]
Preferred polyalkylene glycols have an acid number of 0.2 mg KOH / g.
[0014]
Preferably, the lubricant composition comprises 0.1% to 5%, more particularly 0.5% to 2.5%, of the antiwear agent, based on the total weight of the composition.
[0015]
Preferred antiwear agents are selected from phosphates, phosphites, thiophosphates, thiophosphites, dithiocarbamates, amine phosphates and mixtures thereof.
[0016]
Preferably, the lubricant composition contains 0.5% to 2.5% of an antioxidant, based on the total weight of the composition.
[0017]
Preferred antioxidants are high temperature antioxidants, such as amine-based ashless antioxidants, alkylated phenylnaphthylamine, alkylated diphenylamine, polymerized hydroxyquinoline, iminodibenzyl, and medium temperature antioxidants such as gallates, steric It is selected from hindered phenolic antioxidants, diphenolic antioxidants and mixtures thereof. Examples of suitable high temperature antioxidants include p, p-dioctyldiphenylamine, octylphenylnaphthylamine, polymerized 1,2-dihydro-2,2,4-trimethylquinoline. Examples of suitable medium temperature antioxidants include 6-t-butylphenol, 2,6-dibutylphenol, and 4-methyl-2,6-di-t-butylphenol, 2,6-di-t-butyl-α -Dimethylamino-p-cresol, propyl gallate, and 4,4'-methylene-bis (1,1-dimethyl-ethyl) -phenol.
[0018]
Metal deactivators include copper, white metals, ie, zinc, aluminum, and the like, and alloys thereof, as well as alloys, including lead-containing alloys.
[0019]
Preferably, the lubricant composition comprises 0.05% to 0.5% of a metal deactivator, based on the total weight of the composition. Suitable metal deactivators include gallate, imidazole, benzimidazole, pyrazole, benzotriazole, toltriazole, 2-methylbenzimidazole, 3,5-dimethylpyrazole, methylenebis-benzotriazole or mixtures thereof.
[0020]
Preferably, in the absence of other means, such as selecting a material for corrosion prevention, the lubricant composition contains 0.1% to 2%, especially 0%, based on the total weight of the composition. 0.1 to 0.5 ashless corrosion inhibitor. Suitable ashless corrosion inhibitors include amine naphthalene sulfonates, amine phosphates, alkenyl succinic acid half esters, organic polycarboxylic acids or mixtures thereof. In particular, the aliphatic amine salts of ethylenediamine dinonyl naphthalene sulphonate and monohexyl phosphate, and mixtures thereof.
[0021]
Preferably, in the absence of other means, such as selecting a material for corrosion protection, especially in gas applications containing acidic impurities (sour gas), the lubricant composition will be based on the total weight of the composition. 0.05% to 2%, more particularly 0.1 to 0.5 of a vapor phase anticorrosion additive. Some of the compressors are immersed in the lubricant composition, but are exposed to the gas and the aggressive impurities carried by the gas, and some of the compressors and associated pipe devices. The vapor phase corrosion inhibitor evaporates from the lubricant composition at the operating temperature of the compressor, coating and protecting other exposed surfaces from attack. Examples of suitable vapor phase corrosion inhibitors include dicarboxylic acids, silicones, siloxanes, silanes, silicates, volatile amines or mixtures thereof. In particular, dicarboxylic acids are acids of C7 or higher, such as dodecane diacid, and silicon-containing compounds include decamethylcyclopentasiloxane, dimethylsiloxane pentamer, trimethylsilyl (2,6-di (trimethylsiloxy) phenyl) methanoate, Triethoxy (3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl) silane and tetraethyl silicate; and volatile amines include primary Amines, tripropylamine, and ethyl-di-2-ethylhexylamine are included.
[0022]
The lubricant composition of the present invention also contains 0.0001 to 20%, more preferably 0.01 to 10%, particularly preferably 0.01 to 5% of one or more other lubricants having known functions. % Content. Suitable additives include extreme pressure agents, acid scavengers, foaming agents, defoamers, stabilizers, surfactants, lubricity improvers or oils, and friction improvers. .
[0023]
In another aspect of the invention, the invention provides:
a) Random polymerization of ethylene oxide and propylene oxide in which the polyalkylene glycol is polymerized by a compound having 5 or less carbon atoms and has a ratio of ethylene oxide (EO): propylene oxide (PO) in the range of 3: 1 to 1: 3. A polyalkylene glycol base oil component containing a copolymer,
b) 0.01% to 10% of an anti-wear agent, based on the total weight of the composition;
c) 0.05% to 5% of an antioxidant, based on the total weight of the composition;
d) 0.1% to 1% of a metal deactivator, based on the total weight of the composition;
e) 0% to 2% of a corrosion inhibitor based on the total weight of the composition; and f) 0% to 2% of a vapor phase corrosion inhibitor based on the total weight of the composition;
The use of a lubricant composition comprising in a sliding vane rotary compressor.
[0024]
In another aspect of the present invention, a method of lubricating a rotary vane compressor comprises:
a) Random polymerization of ethylene oxide and propylene oxide in which the polyalkylene glycol is polymerized by a compound having 5 or less carbon atoms and has a ratio of ethylene oxide (EO): propylene oxide (PO) in the range of 3: 1 to 1: 3. A polyalkylene glycol base oil component containing a copolymer,
b) 0.01% to 10% of an anti-wear agent, based on the total weight of the composition;
c) 0.05% to 5% of an antioxidant, based on the total weight of the composition;
d) 0.1% to 1% of a metal deactivator, based on the total weight of the composition;
e) 0% to 2% of a corrosion inhibitor based on the total weight of the composition; and f) 0% to 2% of a vapor phase corrosion inhibitor based on the total weight of the composition;
Using a lubricant composition comprising:
[0025]
In still another aspect of the present invention, a sliding vane type rotary compressor comprises:
a) Random polymerization of ethylene oxide and propylene oxide in which the polyalkylene glycol is polymerized by a compound having 5 or less carbon atoms and has a ratio of ethylene oxide (EO): propylene oxide (PO) in the range of 3: 1 to 1: 3. A polyalkylene glycol base oil component containing a copolymer,
b) 0.01% to 10% of an anti-wear agent, based on the total weight of the composition;
c) 0.05% to 5% of an antioxidant, based on the total weight of the composition;
d) 0.1% to 1% of a metal deactivator, based on the total weight of the composition;
e) 0% to 2% of a corrosion inhibitor based on the total weight of the composition; and f) 0% to 2% of a vapor phase corrosion inhibitor based on the total weight of the composition;
Is filled.
[0026]
In a particularly preferred embodiment of the present invention, the lubricant composition used in the sliding vane rotary compressor,
a) A polyalkylene glycol is polymerized with methanol or butanol, and has a ratio of ethylene oxide (EO): propylene oxide (PO) in the range of 1.5: 1 to 1: 1.5. A polyalkylene glycol base oil component containing a random copolymer,
b) 0.1% to 5% of an anti-wear agent, based on the total weight of the composition;
c) 0.5% to 2.5% of an antioxidant, based on the total weight of the composition;
d) 0.1% to 0.5% of a metal deactivator, based on the total weight of the composition;
e) 0% to 2% of a corrosion inhibitor based on the total weight of the composition; and f) 0% to 0.5% of a vapor phase corrosion inhibitor based on the total weight of the composition;
including.
[0027]
A preferred lubricant composition according to the present invention consists essentially of the polyalkylene glycol base oil component and additives.
[0028]
Preferred lubricant compositions according to the present invention have an acid number of less than 0.5 mg KOH / g.
[0029]
The lubricant composition of the present invention can provide excellent lubricity in a sliding vane type rotary compressor for various gases. In particular, polyalkylene glycols have relatively low solubility in gases, but have the ability to absorb water. The low gas absorption, together with the specific additives, ensures that the sliding vane and its tip are lubricated, and that the vane tip is a proper lubricant that can seal the high pressure side and low pressure side of each vane. A composition can be provided.
[0030]
Since sliding vane rotary compressors have significant downtime, it is important that the lubricant composition according to the invention has the ability to absorb water condensed from the gas when the compressor is cooled. As compared to the case where water remains free in the compressor, corrosion of the metal by the water can be minimized or prevented. Some gases, such as hydrocarbon gases, have significant moisture and tend to condense significant amounts of water into the unit and accumulate in the compressor sump. The lubricant composition of the present invention forms a single phase with water over normal operating temperatures of the compressor. Water absorbed after the compressor starts does not adversely affect the efficiency of the lubricant composition, and a single phase of the lubricant composition and water is pumped through the device to lubricate the device. As the compressor heats up to operating temperature, the absorbed water evaporates from the lubricant composition and is swept out of the compressor by the gas stream flowing through the compressor.
[0031]
This is symmetrical with mineral oils and PAO lubricants, which are immiscible with water and therefore cause free water to pool in the compressor, especially in acidic environments. This can cause corrosion problems, and the water instead of the lubricant is pumped to lubricate the equipment through the equipment when the compressor starts up, and this water lubricates the compressor. Not effective to do.
[0032]
The lubricant composition according to the invention also has the advantage of operating a compressor for pumping various gases, including hydrocarbon gases and air. As described above, the present invention provides a single-grade lubricant stock that enables a compressor manufacturer to avoid the problem of filling the compressor with unsuitable lubricant or the like by preparing separate storage tanks for multiple grades. Can provide a significant replenishment advantage of requiring only
[0033]
The low maintenance cost of a sliding vane compressor is particularly useful for gas booster applications, especially for microturbine applications.
[0034]
Booster devices pressurize air or gas to a pressure above atmospheric pressure, and even higher. Booster devices have versatility, especially in oil and gas and related fields. Examples of gas boosting include the supply of oil well gas to a pipeline and the supply of natural gas to a gas turbine. In these latter applications, the compressor is used to supply gas at the flow rates and pressures required for continuous operation of the turbine. Even small amounts of petroleum-based lubricants carried in the gas supplied to the turbine can create carbonaceous deposits in the gas supply nozzles to the turbine, regulate flow and cause ignition. The lubricant composition of the present invention is particularly suitable for the above-mentioned role because of its low carry-in of the substance, high-temperature stability and clean combustion. In these applications, gas compression may be single or multi-stage based on pressure differential, horsepower, and gas analysis.
[0035]
The invention will be explained in more detail below by way of example with reference to the accompanying drawings and the following examples.
[0036]
In FIG. 1, a sliding vane
[0037]
The rotor has slots 22 spaced at equal circumferential intervals on the circumference. The slot 22 extends in a direction perpendicular to a circle centered on the axis of the
[0038]
During operation, rotation of the
[0039]
The lubricant composition is present in the
[0040]
Example 1
The lubricant composition of the present invention (samples 1 and 2) is a polyalkylene glycol initiated with butanol and having an EO: PO ratio of 1: 1 as a base oil component, and has the additives shown in Table 1. .
[0041]
[Table 1]
[0042]
All percentages shown in the table are percentages by weight based on the total composition.
[0043]
[0044]
[Table 2]
[0045]
Example 2
Sample 1 and Comparative Sample, Sample 3-a: Commercially available mineral oil composition used in a sliding vane rotary compressor available under the trade name Hydrovane 2000 under Compair Hydrovane, and Sample 4: Trade name Compair CS300 Tested the effect of hydrocarbons, such as heptane, on commercially available naphthalate ester compositions used in sliding vane rotary compressors available from Compair. The test was performed by first measuring the viscosity of the raw sample. Thereafter, the viscosity of these samples after exposure to heptane was measured. The samples were exposed to heptane by injecting 40 ml of the sample into the measuring cylinder and adding 4 ml, ie 10% heptane, into the cylinder. The sample and heptane were stirred together for 5 minutes and then left to separate for 1 hour. The heptane layer separated from the sample was then removed and the viscosity of the sample was measured. This test was repeated for a new amount of sample, adding heptane with a content of 8 ml, ie 20%, 12 ml, ie 30%, and 16 ml, ie 40%.
[0046]
The viscosity of each of the tested samples was measured at 40 ° C. according to the ASTM D445 method.
[0047]
The results are shown in Table 3 and shown in FIG. As can be seen, the viscosity of Sample 1 remains significantly higher at high hydrocarbon content compared to the viscosities of commercially
[0048]
[Table 3]
[0049]
Example 3
[0050]
The results are shown in Table 4 and shown in FIG. As can be seen, the amount of Sample 1 on the specimen, and thus the thickness of the residual lubricant composition, is significantly higher than that of
[0051]
[Table 4]
[0052]
Example 4
To examine the performance of the lubricant composition against thermal decomposition under operating conditions, equal amounts of Sample 1 and Sample 4 were placed in a glass tube in an aluminum heating block. A steel plate sample (76 mm × 13 mm × 3 mm size) was placed in each glass tube containing samples 1 and 4. These glass tubes were connected via silicone tubing to respective similar tubes with distilled water located outside the heating block. The function of the water in the absorber tube was to absorb the decomposition products volatilized from the sample of the lubricant composition.
[0053]
Compressed dry nitrogen is passed sequentially at a rate of 1 liter / hour through each tube containing samples 1 and 4 and each tube containing water. The test was performed at 175 ° C. for 168 hours.
[0054]
After the test period, the samples were tested for kinematic viscosity at 40 ° C. and acid number (neutralization number) and then compared to initial measurements of these parameters to evaluate the performance of the lubricant composition. The acid value measurement indicates the acid value of the water recovered for Samples 1 and 4, and the measurement results indicate that low molecular weight acids from the decomposed product of the lubricant composition were used for Samples 1 and 4. Shows the fact that it has volatilized.
[0055]
Table 5 shows the results.
[0056]
[Table 5]
[0057]
Sample 1 has a smaller change in viscosity and acid value than Sample 4.
[0058]
Example 5
[0059]
As can be seen from FIG. 4, Sample 1 according to the present invention showed significantly better properties than the conventional lubricant composition used in connection with the present invention.
[0060]
Example 5
In field tests using lubricant compositions having specifications based on Sample 1, compressors used in oil well applications containing aggressive (acidic) gas compositions exceeded 8000 hours of use. Similarly, in microturbine applications, the compressor has exceeded 10,000 hours of use.
[0061]
With the lubricant composition of the present invention, the lubricant in the compressor is changed at a compressor service interval longer than the service interval of, for example, 2000 hours necessary for using the existing lubricant composition, for example, in one year. Can be made possible.
[Brief description of the drawings]
[0062]
FIG. 1 shows a cross section of a sliding vane rotary compressor.
FIG. 2 is a graphical representation of the results obtained in Example 2.
FIG. 3 is a graphical representation of the results obtained in Example 3.
FIG. 4 is a graphical representation of the results obtained in Example 5.
Claims (27)
b)組成物の全質量に基づいて0.01%〜10%の耐摩剤、
c)組成物の全質量に基づいて0.05%〜5%の抗酸化剤、
d)組成物の全質量に基づいて0%〜1%の金属不活性化剤、
e)組成物の全質量に基づいて0%〜2%の耐蝕剤、及び
f)組成物の全質量に基づいて0%〜2%の蒸気相耐蝕剤、
を含む、スライディングベーン式回転圧縮機において使用する潤滑剤組成物。a) ethylene oxide and propylene oxide in which the polyalkylene glycol has been polymerized by a compound having 5 or less carbon atoms, wherein the ratio of ethylene oxide (EO): propylene oxide (PO) is in the range of 3: 1 to 1: 3. Including a random copolymer with a polyalkylene glycol base oil component,
b) 0.01% to 10% of an anti-wear agent, based on the total weight of the composition;
c) 0.05% to 5% of an antioxidant, based on the total weight of the composition;
d) 0% to 1% of a metal deactivator, based on the total weight of the composition;
e) 0% to 2% of a corrosion inhibitor based on the total weight of the composition, and f) 0% to 2% of a vapor phase corrosion inhibitor based on the total weight of the composition;
A lubricant composition for use in a sliding vane rotary compressor, comprising:
b)組成物の全質量に基づいて0.01%〜10%の耐摩剤、
c)組成物の全質量に基づいて0.05%〜5%の抗酸化剤、
d)組成物の全質量に基づいて0.1%〜1%の金属不活性化剤、
e)組成物の全質量に基づいて0%〜2%の耐蝕剤、及び
f)組成物の全質量に基づいて0%〜2%の蒸気相耐蝕剤、
を含む、スライディングベーン式回転圧縮機において使用する潤滑剤組成物。a) a polyalkylene glycol is polymerized with methanol or butanol and has a ratio of ethylene oxide (EO): propylene oxide (PO) in the range of 1.5: 1 to 1: 1.5; A polyalkylene glycol base oil component comprising a random copolymer and having a kinematic viscosity at 100 ° C. of at least 12 centistokes,
b) 0.01% to 10% of an anti-wear agent, based on the total weight of the composition;
c) 0.05% to 5% of an antioxidant, based on the total weight of the composition;
d) 0.1% to 1% of a metal deactivator, based on the total weight of the composition;
e) 0% to 2% of a corrosion inhibitor based on the total weight of the composition, and f) 0% to 2% of a vapor phase corrosion inhibitor based on the total weight of the composition;
A lubricant composition for use in a sliding vane rotary compressor, comprising:
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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GBGB0107502.7A GB0107502D0 (en) | 2001-03-26 | 2001-03-26 | Lubricant compositions |
PCT/GB2002/001073 WO2002077135A1 (en) | 2001-03-26 | 2002-03-08 | Compressor lubricant compositions |
Publications (2)
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JP2004524414A true JP2004524414A (en) | 2004-08-12 |
JP2004524414A5 JP2004524414A5 (en) | 2005-12-22 |
Family
ID=9911554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2002576578A Pending JP2004524414A (en) | 2001-03-26 | 2002-03-08 | Compressor lubricant composition |
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US (1) | US20050250654A1 (en) |
EP (1) | EP1373444A1 (en) |
JP (1) | JP2004524414A (en) |
GB (1) | GB0107502D0 (en) |
WO (1) | WO2002077135A1 (en) |
Cited By (2)
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JP2019529658A (en) * | 2016-09-23 | 2019-10-17 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | Lubricant composition |
WO2020080057A1 (en) * | 2018-10-17 | 2020-04-23 | 出光興産株式会社 | Lubricating oil composition for air compressors, air compressor lubricating method, and air compressor |
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US20100204075A1 (en) * | 2005-07-01 | 2010-08-12 | Enbio Industries, Inc. | Environmentally compatible hydraulic fluid |
US7741259B2 (en) * | 2005-07-01 | 2010-06-22 | Enbio Industries, Inc. | Environmentally compatible hydraulic fluid |
US7732386B2 (en) * | 2005-10-25 | 2010-06-08 | Chevron U.S.A. Inc. | Rust inhibitor for highly paraffinic lubricating base oil |
EP2142624B1 (en) | 2007-04-25 | 2017-09-06 | Dow Global Technologies LLC | Lubricant blend composition |
JP2014511913A (en) * | 2011-03-23 | 2014-05-19 | ダウ グローバル テクノロジーズ エルエルシー | Polyalkylene glycol heat transfer fluid and single fluid engine oil |
JP2013082797A (en) * | 2011-10-07 | 2013-05-09 | Showa Shell Sekiyu Kk | Easy identification method of lubricating oil, kit for easy identification, and easily-identifiable lubricating oil |
KR20140139002A (en) * | 2012-03-23 | 2014-12-04 | 바스프 에스이 | Fluid composition for a vibration dampener |
US20150051130A1 (en) * | 2013-08-15 | 2015-02-19 | John D. Blizzard | Heat pump additive providing enhanced efficiency |
EP3464524A1 (en) * | 2016-06-02 | 2019-04-10 | Basf Se | Lubricant composition |
DE102017008676A1 (en) | 2016-09-21 | 2018-03-22 | Klüber Lubrication München Se & Co. Kg | Use of lubricants based on water-soluble, high-viscosity polyglycols |
CN111575090A (en) * | 2020-05-15 | 2020-08-25 | 中国石油化工股份有限公司 | Air compressor oil composition and application thereof |
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- 2002-03-08 JP JP2002576578A patent/JP2004524414A/en active Pending
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2003
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JP2019529658A (en) * | 2016-09-23 | 2019-10-17 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | Lubricant composition |
WO2020080057A1 (en) * | 2018-10-17 | 2020-04-23 | 出光興産株式会社 | Lubricating oil composition for air compressors, air compressor lubricating method, and air compressor |
JP2020063371A (en) * | 2018-10-17 | 2020-04-23 | 出光興産株式会社 | Lubricant composition for air compressor, method for lubricating air compressor and air compressor |
US11421178B2 (en) | 2018-10-17 | 2022-08-23 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition for air compressors, air compressor lubricating method, and air compressor |
JP7324575B2 (en) | 2018-10-17 | 2023-08-10 | 出光興産株式会社 | Lubricating oil composition for air compressor, method for lubricating air compressor, and air compressor |
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EP1373444A1 (en) | 2004-01-02 |
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GB0107502D0 (en) | 2001-05-16 |
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