摘要:
A process for stabilizing a lubricating oil base stock derived from a nitro-aromatic-containing hydrocracked bright stock, comprising a three-step stabilizing process utilizing hydrodenitrification followed by mild hydrofinishing followed by nonhydrogenative acid stabilization.
摘要:
An infant's or small child's protective seat constructed for securement to a snowmobile, motorcycle, or similar vehicle has a rigid and structurally strong, body-receiving seat structure preferably integrally formed with upstanding back wall and side walls for enclosing substantially the entire body of the occupant in seated position, and has a transparent, bubble-type hood hingedly connected to the upper part of the back wall for seating upon the side walls when in closed position and for swinging backwardly into open position to permit entry to and exit from the seat. A body-restraining harness is anchored to the seat structure for holding the occupant firmly in the seat, and means are provided for latching the hood in its closed position. Means are also provided for detachably securing the seat structure to the vehicle in superimposed position on the vehicle's seat.
摘要:
A method for producing a base oil having a high ratio of weight percent molecules with monocycloparaffinic functionality to weight percent molecules with multicycloparaffinic functionality by hydroisomerization dewaxing a selected Fischer-Tropsch wax under hydroisomerization conditions including a hydrogen to feed ratio from about 712.4 to about 3562 liter H2/liter oil.
摘要:
A reforming process using a medium pore zeolite under conditions to facilitate the conversion of C8 paraffinic compounds to para-xylene is provided. Para-xylene is produced at greater than thermodynamic equilibrium concentrations using the process.
摘要:
The present invention is directed to a refrigerator oil composition comprising (a) a triester species having the following structure: wherein R1, R2, R3, and R4 are the same or independently selected from hydrocarbon groups having from 2 to 20 carbon atoms and wherein “n” is an integer from 2 to 20; and (b) a refrigerant, wherein the refrigerant is a halohydrocarbon.
摘要:
Processes for reforming of naphtha feedstocks are described. Briefly, a two stage naphtha reforming process is described. The first stage uses a low acidity beta zeolite catalyst under relatively mild reforming conditions to form an effluent. This effluent is passed to a subsequent stage where further reforming occurs using a catalyst containing ZSM-5 zeolite. The second stage is run under mild reforming conditions. The low pressures employed in the reforming process described maximize liquid product yield by avoiding unwanted cracking reactions and production of light products.