Abstract: The present invention provides a process for removing elemental sulfur from fluids such as refined petroleum products transported through pipelines for the transportation of sour hydrocarbon streams. The sulfur-containing fluids are mixed with an inorganic caustic material, an alkyl alcohol and an organo mercaptan or sulfide compound capable of reacting with sulfur to form a fluid-insoluble polysulfide salt reaction product at ambient reaction temperatures. The treated fluid is then contacted with an adsorbent or filtered to remove the insoluble salt leaving a product of very low residual sulfur content.

Abstract: A process for removing elemental sulfur from fluids such as refined petroleum products transported through pipelines for the transportation of sour hydrocarbon streams. The fluids are contacted with a soluble quaternary ammonium hydroxide and preferably an organo mercaptan and alcohol to convert the elemental sulfur to a soluble polysulfide product which is substantially non-corrosive.

Abstract: An auxiliary braking system of the compression relief type in a vehicle having a diesel engine. The vehicle is provided with an accelerator pedal, a shift lever provided with a knob and a clutch pedal. The auxiliary braking system is armed by a switch means mounted, at least in part, on the knob of the shift lever. The arming switch means includes a microswitch mounted within the knob and a push-button activator protruding therefrom. The switch means may include a relay positioned elsewhere, contacts of which are in series with a series circuit arranged to deliver energizing current to means which enable the auxiliary braking system. The switch means may be in parallel with a principal arming switch which alternatively may be used to arm the sytem, the principal arming switch being positioned on the dashboard of the vehicle.

Abstract: A process wherein a coked, deactivated iridium-containing catalyst can be reactivated in a sequence of burn steps, inclusive of a low temperature primary burn step and a subsequent high temperature burn step. In (1) the low temperature primary burn step (i) the chloride level of the catalyst is raised and the catalyst passivated by contact with a hydrogen chloride containing gas, (ii) and coke is then burned from the catalyst by contact with a gas which contains hydrogen chloride at level sufficient to suppress iridium agglomeration at a level of oxygen providing burn temperatures which do not exceed about 425.degree. C., this being sufficient to remove a preponderance of the coke without agglomeration of the iridium component.

Abstract: A process wherein a coked, deactivated iridium-containing catalyst can be reactivated in a sequence of burn steps, inclusive of a low temperature primary burn step and a subsequent high temperature burn step. In (1) the low temperature primary burn step (i) the chloride level of the catalyst is raised and the catalyst passivated by contact with a hydrogen chloride containing gas, (ii) and coke is then burned from the catalyst by contact with a gas which contains hydrogen chloride at level sufficient to suppress iridium agglomeration at a level of oxygen providing burn temperatures which do not exceed about 425.degree. C., this being sufficient to remove a preponderance of the coke without agglomeration of the iridium component.

Abstract: Olefins and aromatic compounds in mixed hydrocarbon streams boiling above about 200.degree. F. are hydrogenated at a temperature ranging between about 400.degree. F.-720.degree. F. using a zeolite-containing catalyst that has been treated with a hydrocarbon stream relatively high in organic nitrogen compounds to suppress the cracking activity of the catalyst. The catalyst comprises (1) an amorphous base component, (2) a crystalline aluminosilicate component preferably comprising 5-30 wt. % of the total catalyst and having a silica/alumina mole ratio of at least 2.5 and an alkali metal content of less than about 2.0 wt. %, and (3) a transition metal hydrogenation component. The process is particularly useful in the manufacture of jet fuels and technical white oils and white oil bases with a minimum conversion of feed (<20%) to substantially lower boiling products.

Abstract: This invention relates to an improved method of removing elemental sulfur from refined hydrocarbon fuels comprising adding an organo mercaptan compound and a copper compound capable of forming a soluble copper complex with said mercaptan and said sulfur and contacting said fuel with an adsorbent material to remove the copper complex and substantially all of said elemental sulfur.

Abstract: An improved process for producing low pour point, high VI synthetic oils from feedstocks containing wax and residual olefinic unsaturation, said feedstocks having been obtained by thermal, non-catalytic polymerization of linear, C.sub.6 -C.sub.20 carbon atom monoalpha-olefins. The improvement comprises simultaneously hydrogenating and catalytically dewaxing the feedstock by contacting said feedstock and hydrogen with a hydrogen form mordenite catalyst at elevated temperature and pressure, thereby producing a stable synthetic oil of high viscosity index and low pour point.