Mobil

About: Mobil is a based out in . It is known for research contribution in the topics: Catalysis & Zeolite. The organization has 7085 authors who have published 10642 publications receiving 237497 citations. The organization is also known as: Socony-Vacuum Oil Company & Standard Oil Company of New York.

High molecular weight mannich bases as engine oil additives

Abstract: Condensation products of (1) high molecular weight alkyl substituted phenol wherein the alkyl substituent is derived from a polyalkene of molecular weight 600 to 3000, (2) an amine containing an NH group, and (3) an aldehyde in a molar ratio of 1:0.1 to 10:0.1 to 10 respectively may be prepared by reacting the materials at 20 DEG to 200 DEG C. The alkyl substituents may be derived from polypropylene, polybutylene or polyamylene, which may be reacted with phenol, resorcinol, hydroquinone, catechol, cresol, xylenol, amylphenol, hydroxydiphenyl, benzylphenol, phenylethylphenol, phenol resins, methylhydroxydiphenyl, guiacol, naphthols and methyl, tolyl, xylyl and benzyl naphthols, anthranol, phenanthrol, phenoxyphenol, chlorophenol and hydroxyphenyl sulphides in the presence of boron trifluoride etherate. Specified amines include alkylene diamines, polyalkylene polyamines and N-acyl derivatives thereof, and aromatic and heterocyclic amines. Specified aldehydes are formaldehyde, acetaldehyde, aldol, benzaldehyde and furfural. The products are useful as lubricating oil additives. Examples describe the preparation of condensates from formaldehyde, polypropenylphenol and (1) dimethylamine, (2) dimethylaminopropylamine, (3) tetraethylenepentamine, (5) N - acetyl tetraethylenepentamine and (6) diethylenetriamine; from formaldehyde, polybutenylphenol and (4) tetraethylenepentamine; and from formaldehyde, polypropenylphenol sulphide and (7) diethylenetriamine.ALSO:Lubricating compositions comprise natural or synthetic oils and detergent additives which are condensation products of (1) an alkenyl substituted phenol wherein the alkenyl substitutent has a molecular weight of 600 to 3000, (2) an amine having an NH group and (3) an aldehyde in molar ratios of 1:0.1-10:0.1-10. The compositions may also comprise conventional oiliness and extreme pressure agents; corrosion, oxidation and rust inhibitors, viscosity index improvers, colouring agents and auxiliary detergents. The phenol may be a polypropenyl, polybutenyl or polypentenyl phenol. The aldehyde may be formaldehyde, acetaldehyde, aldol, benzaldehyde or furfural. The amine may be an alkylene or polyalkylene polyamine or acyl derivative thereof, or aromatic or heterocyclic amine. Many suitable reactants are listed, and examples describe compositions comprising mineral lubricating oils, 1,3-dimethylbutyl zinc dithiophosphate as corrosion inhibitor, and condensation products of formaldehyde, polypropenylphenol and (1) dimethylamine, (2) dimethylaminopropylamine, (3) tetraethylene pentamine, (5) N-acetyl tetraethylene pentamine and (6) di-ethylene triamine; of formaldehyde, polybutenylphenol and (4) tetraethylene pentamine; and of formaldehyde, polypropenylphenol sulphide and (7) diethylene triamine.

Gravel packing of wells

Abstract: Apparatus for gravel packing a wellbore interval having shunt means (i.e. conduits) on the external surface of a sand screen which can selectively deliver a gravel slurry to different levels of the interval during operation. The shunt means is comprised of a variety of differently configured, perforated conduits and/or arrangements of these conduits.

Tubular solar cell devices

Abstract: Tubular solar cells are provided which can be coupled together in series and parallel arrays to form an integrated structure. Solar energy concentrators are combined with the solar cells to maximize their power output. The solar cells may be cooled by circulating a heat exchange fluid through the interior of the solar cells and the heat captured by such fluid may be utilized, for example, to provide hot water for a heating system. The coolant circulating system of the solar cells also may be integrated with a solar thermal device so as to form a two-stage heating system, whereby the coolant is preheated as it cools the solar cells and then is heated further by the solar thermal device.

Process for making gas hydrates

Abstract: The present disclosure provides a process for continuously producing clathrate hydrate. This process includes the step of: (a) pressurizing a hydrate-forming gas to an elevated pressure and cooling the hydrate-forming gas below the gas-water-hydrate equilibrium point at the elevated pressure; (b) cooling liquid water below the gas-water-hydrate equilibrium temperature for the elevated pressure; (c) charging hydrate-forming gas at the elevated pressure into a reaction zone which contains a movable surface; (d) atomizing water in the reaction zone in contact with the hydrate-forming gas to form gas hydrate in the reaction; (e) depositing the gas hydrates on the movable surface; and (f) collecting the gas hydrates from the movable surface.

Simultaneous removal of mercury and water from fluids

Abstract: A regenerable molecular sieve comprises 0.001-15% elemental silver or gold in or on zeolite A. The molecular sieve is capable of simultaneously removing mercury and water from a fluid. A method for impregenating zeolite A with elemental silver or gold comprising treating the zeolite A with a solution of a silver or gold salt of a carboxylic acid and heating the impregnated zeolite A at a temperature sufficient to decompose the salt is also provided. A method for simultaneously and repeatedly removing mercury and water from a hydrocarbon fluid by contacting the fluid with an effective amount of a molecular sieve comprising zeolite A and 0.001-15% elemental silver or gold and regenerating the zeolite A at elevated temperatures is also provided.