US2833721A - Lubricant for recycle gas compressor employed in hydroforming systems - Google Patents
Lubricant for recycle gas compressor employed in hydroforming systems Download PDFInfo
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- US2833721A US2833721A US507117A US50711755A US2833721A US 2833721 A US2833721 A US 2833721A US 507117 A US507117 A US 507117A US 50711755 A US50711755 A US 50711755A US 2833721 A US2833721 A US 2833721A
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- Prior art keywords
- hydroforming
- lubricant
- viscosity
- compressor
- catalyst
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-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M169/04—Mixtures of base-materials and additives
- C10M169/045—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and non-macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
- C10M107/08—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation containing butene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- 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
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
- C10M129/40—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/02—Natural products
- C10M159/08—Fatty oils
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M169/04—Mixtures of base-materials and additives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
- C10M2205/0265—Butene used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/402—Castor oils
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
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- 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
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- 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
- C10N2040/30—Refrigerators lubricants or compressors lubricants
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- 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
- C10N2040/32—Wires, ropes or cables lubricants
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- 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
- C10N2040/34—Lubricating-sealants
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
Definitions
- This invention relates to the lubrication of gas compressors employed in catalytic conversion processes and it pertains more particularly to an improved lubricant for recycle gas compressors in naphtha hydroforming units employing supported platinum catalysts.
- Ultraforming, etc. all require the use of gas compressors for circulating a recycled hydrogen stream from a hydrogen separator to a reheater and thence to a bed of supported platinum catalyst. Difliculties have arisen in such systems because hydrocarbon oil employed as compressor lubricant is picked up in varying amounts with the recycled gas stream and ultimately becomes deposited on the supported platinum catalyst thus leading to the formation of carbonaceous deposits thereon which not only tend to deactivate the catalyst but which cause increase in pressure drop across the reactor or, in other words, tend to plug the catalyst bed with deposits.
- the object of this invention is to provide an improved method and means for avoiding such difliculties.
- a specific object of the invention is to provide an improved lubricant for the cylinders of gas compressors employed in catalytic conversion processes wherein the presence of ordinary mineral lubricants is detrimental. Other objects will be apparent from the following detailed description.
- the cylinders of recycle gas compressors employed in hydroforming units are continuously lubricated with a mixture of butylene polymers of lubricating oil viscosity containing a small amount, not substantially exceeding about 1 percent, of a lubricity oiliness agent such, for example, as sperm oil.
- the mixture of butylene polymers is preferably of relatively narrow molecular weight range, i. e. substantially free from light polymers having viscosities below 100 seconds Saybolt at 100 F. and substantially free from heavy polymers having viscosities upwards of 1,000 seconds Saybolt at 210 F.
- the preferred polybutene lubri cant is one having a viscosity in the range of about to 90 seconds Saybolt at 210 F.
- a polybutene of such viscosity may, however, be obtained by blending butylene polymers having an average viscosity of about 100 seconds at 100 F. with heavy polymers having an average viscosity of about 1,000 seconds at 210 F.
- the pre substantially eliminating valve deposits and, at the same time, its presence in the lubricant in the defined amounts does not cause catalyst deactivationand carbon formation which would be caused by the use of ordinary mineral lubricating oils in the lubricant composition.
- sperm oil is our preferred lubricity oiliness agent
- other stable, non-carbonforming oiliness agents of this general type may be employed in its stead.
- the preferred class of such, agents is that of fatty materials such as lard oil, seal oil, cottonseed oil and the like, although other polar oiliness agents known to the art may be employed provided that they have no detrimental effect on coking tendencies and catalyst deactivation in the catalyst bed of the hydroforming unit.
- the fatty materials may be acids such as oleic, stearic acid, and the like, or they may be esters, particularly glyceride esters. They should, of course, be non-drying.
- a mixture of polybutene polymers of lubricating oil viscosity said mixture having a viscosity of about 65 seconds Saybolt at 210 F., was blended by conventional mixing with about 1 percent by weight of sperm oil.
- the lubricant thus formulated was employed to lubricate the cylinders of a Clark 440 H. P. HRA gas engine driven compressor in a commercial Ultraforming unit for a period of over nine months. During this entire period the compressor lubrication has been remarkably effective, there has been no coke formation in the catalyst beds caused by lubricating oil carried thereto in recycled gases and catalyst deactivation from this source has thus been entirely eliminated.
- compressor lubricants within the scope of our invention are:
- a lubricated gas compressor recycles a hydrogen gas stream to a hydroforming reactor containing a platinum-on-alumina catalyst, said catalyst gradually having carbonaceous deposits formed thereon during the hydroforming of the naphtha, the improvement whereby the formation of car bonaceous deposits on the catalyst due to coking thereon of compressor lubricant carried off by the recycle hydrogen gas is reduced which improvement comprises lubricating said compressor with a lubricant consisting of a mixture of butylene polymers ranging in viscosity.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
LUBRICANT FOR RECYCLE GAS COMPRESSOR EMPLOYED IN HYDROFORMING SYSTEMS William P. Hilliker, New Orleans, La., and Harry K.
Wheeler, El Dorado, Ark., assignors, by mesne assignments, to The American Oil Company, a corporation of Maryland No Drawing. Application May 9, 1955 Serial No. 507,117
2 Claims. (Cl. 252-56) This invention relates to the lubrication of gas compressors employed in catalytic conversion processes and it pertains more particularly to an improved lubricant for recycle gas compressors in naphtha hydroforming units employing supported platinum catalysts.
The many known types of naphtha hydroforming processes employing supported platinum catalysts such, for
rice
tion properties of the polybutene by reducing wear and example, as Platforming, Catforming, Houdriforming, v
Ultraforming, etc., all require the use of gas compressors for circulating a recycled hydrogen stream from a hydrogen separator to a reheater and thence to a bed of supported platinum catalyst. Difliculties have arisen in such systems because hydrocarbon oil employed as compressor lubricant is picked up in varying amounts with the recycled gas stream and ultimately becomes deposited on the supported platinum catalyst thus leading to the formation of carbonaceous deposits thereon which not only tend to deactivate the catalyst but which cause increase in pressure drop across the reactor or, in other words, tend to plug the catalyst bed with deposits. The object of this invention is to provide an improved method and means for avoiding such difliculties. A specific object of the invention is to provide an improved lubricant for the cylinders of gas compressors employed in catalytic conversion processes wherein the presence of ordinary mineral lubricants is detrimental. Other objects will be apparent from the following detailed description.
In accordance with our invention the cylinders of recycle gas compressors employed in hydroforming units are continuously lubricated with a mixture of butylene polymers of lubricating oil viscosity containing a small amount, not substantially exceeding about 1 percent, of a lubricity oiliness agent such, for example, as sperm oil.
The mixture of butylene polymers is preferably of relatively narrow molecular weight range, i. e. substantially free from light polymers having viscosities below 100 seconds Saybolt at 100 F. and substantially free from heavy polymers having viscosities upwards of 1,000 seconds Saybolt at 210 F. The preferred polybutene lubri cant is one having a viscosity in the range of about to 90 seconds Saybolt at 210 F. A polybutene of such viscosity may, however, be obtained by blending butylene polymers having an average viscosity of about 100 seconds at 100 F. with heavy polymers having an average viscosity of about 1,000 seconds at 210 F. The pre substantially eliminating valve deposits and, at the same time, its presence in the lubricant in the defined amounts does not cause catalyst deactivationand carbon formation which would be caused by the use of ordinary mineral lubricating oils in the lubricant composition.
-While sperm oil is our preferred lubricity oiliness agent, it should be understood that other stable, non-carbonforming oiliness agents of this general type may be employed in its stead. The preferred class of such, agents is that of fatty materials such as lard oil, seal oil, cottonseed oil and the like, although other polar oiliness agents known to the art may be employed provided that they have no detrimental effect on coking tendencies and catalyst deactivation in the catalyst bed of the hydroforming unit. The fatty materials may be acids such as oleic, stearic acid, and the like, or they may be esters, particularly glyceride esters. They should, of course, be non-drying.
As a specific example of our invention a mixture of polybutene polymers of lubricating oil viscosity, said mixture having a viscosity of about 65 seconds Saybolt at 210 F., was blended by conventional mixing with about 1 percent by weight of sperm oil. The lubricant thus formulated Was employed to lubricate the cylinders of a Clark 440 H. P. HRA gas engine driven compressor in a commercial Ultraforming unit for a period of over nine months. During this entire period the compressor lubrication has been remarkably effective, there has been no coke formation in the catalyst beds caused by lubricating oil carried thereto in recycled gases and catalyst deactivation from this source has thus been entirely eliminated.
Other examples of compressor lubricants within the scope of our invention are:
1) A mixture of butylene polymers having a viscosity of seconds Saybolt at 210 F. and containing .1 percent oleic acid,
(2) A mixture of butylene polymers having a viscosity of 40 seconds Saybolt at 210 F. containing about 1 percent lard oil, 7
(3) A mixture of butylene polymers having a viscosity of about 66 seconds Saybolt at 210 F. containing about .5 percent'sperm oil, and
(4) A mixture of butylene polymers having a viscosity of about 50 seconds Saybolt at 210 F. and containing about 1 percent of cottonseed oil.
Other examples will be apparent from the above description to those skilled in the art.
We claim:
1. In a naphtha hydroforming system wherein a lubricated gas compressor recycles a hydrogen gas stream to a hydroforming reactor containing a platinum-on-alumina catalyst, said catalyst gradually having carbonaceous deposits formed thereon during the hydroforming of the naphtha, the improvement whereby the formation of car bonaceous deposits on the catalyst due to coking thereon of compressor lubricant carried off by the recycle hydrogen gas is reduced which improvement comprises lubricating said compressor with a lubricant consisting of a mixture of butylene polymers ranging in viscosity.
from about seconds Saybolt at 100 F. to 1000 seconds Saybolt at 210 F. which mixture has a viscosity in the range of about 50 to 90 seconds Saybolt at 210 F.
(References on following page) llefmnces Cited in the file of this patent OTHER REFERENCES Ind. and Eng. Chem., vol. 23, No. 6, pages 604-611. UNITED STATES PATENTS Motor Oils and Engine Lubrication, by Georgi, Rein- 627,278 Nelson June 20, 1899 hold Pub. Co., 1950, pages 219 and 220.
' 1,869,779 Roberts Aug. 2, 1932 5 Uses and Applications of Chemicals and Related Materials, by Gregory, Reinhold Pub. Co., 1939, page 567.
Claims (1)
1. IN A NAPHTHA HYDROFORMING SYSTEM WHEREIN A LUBRICATED GAS COMPRESSOR RECYCLES A HYDROGEN GAS STREAM TO A HYDROFORMING REACTOR CONTAINING A PLATINUM-ON-ALUMINA CATALYST, SAID CATALYST GRADUALLY HAVING CARBONACEOUS DEPOSITS FORMED THEREON DURING THE HYDROFORMING OF THE NAPHTHA, THE IMPROVEMENT WHEREBY THE FORMATION OF CARBONACEOUS DEPOSITS ON THE CATALYST DUE TO COKING THEREON OF COMPRESSOR LUBRICANT CARRIED OFF BY THE RECYCLE HYDROGEN GAS IS REDUCED WHICH IMPROVEMENT COMPRISES LUBRICATING SAID COMPRESSOR WITH A LUBRICANT CONSISTING OF A MIXTURE OF BUTYLENE POLYMERS RANGING IN VISCOSITY FROM ABOUT 100 SECONDS SAYBOLT AT 100*F. TO 1000 SECONDS SAYBOLT AT 210*F. WHICH MIXTURE HAS A VISCOSITY IN THE RANGE OF ABOUT 50 TO 90 SECONDS SAYBOLT AT 210*F. AND A SMALL AMOUNT NOT SUBSTANTIALLY EXCEEDING ABOUT 1 PERCENT BY WEIGHT OF A FATTY MATERIAL WHICH SERVES AS A LUBRICITY OILINESS AGENT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US507117A US2833721A (en) | 1955-05-09 | 1955-05-09 | Lubricant for recycle gas compressor employed in hydroforming systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US507117A US2833721A (en) | 1955-05-09 | 1955-05-09 | Lubricant for recycle gas compressor employed in hydroforming systems |
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Publication Number | Publication Date |
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US2833721A true US2833721A (en) | 1958-05-06 |
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Application Number | Title | Priority Date | Filing Date |
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US507117A Expired - Lifetime US2833721A (en) | 1955-05-09 | 1955-05-09 | Lubricant for recycle gas compressor employed in hydroforming systems |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3306907A (en) * | 1963-04-29 | 1967-02-28 | Standard Oil Co | Process for preparing n n-di |
US3392116A (en) * | 1963-02-28 | 1968-07-09 | Cegedur Gp | Process of metal working and lubricant therefor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US627278A (en) * | 1899-06-20 | Lubricant | ||
US1869779A (en) * | 1928-04-23 | 1932-08-02 | Standard Oil Co | Lubricating oil |
-
1955
- 1955-05-09 US US507117A patent/US2833721A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US627278A (en) * | 1899-06-20 | Lubricant | ||
US1869779A (en) * | 1928-04-23 | 1932-08-02 | Standard Oil Co | Lubricating oil |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3392116A (en) * | 1963-02-28 | 1968-07-09 | Cegedur Gp | Process of metal working and lubricant therefor |
US3306907A (en) * | 1963-04-29 | 1967-02-28 | Standard Oil Co | Process for preparing n n-di |
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