Her Majesty the Queen in Right of Canada, as Represented by the Minister

Other

Energy, Mines & Resources - Canada

Natural Resources Canada

Brian A Farnand

Henry Sawatzky

Floyd I Clelland

Jean Houde, Jr

Udai S Gill

Craig W Fairbridge

Esteban C Castellanos

Ian F Clelland

Noel P Mailvaganam

Terrance Giddings

A process is described for preparing a water-soluble sulphonated dispersant from a petroleum hydrocracking residue comprising: contacting a petroleum hydrocracking residue boiling above 524.degree. C. with concentrated sulphuric acid, oleum or sulphur trioxide to form a sulphonated mixture containing water soluble and water insoluble products, and separating the water soluble sulphonated product from the mixture. The mixture of water soluble and water insoluble sulphonated products is neutralized with alkali and evaporated to dryness, after which the dried mixture is extracted with alcohol to leave a water soluble product. The product can be used as a water reducer or superplasticizer in concrete.

Sulphonated hydrocracking residues as concrete admixtures

A novel catalyst has been provided for the selective hydrogenation of benzene in gasoline. The catalyst mixture comprises a water-soluble, organo-metallic, selective benzene hydrogenation catalyst comprising catalytically-active mixture of (A) M[L].sub.x [X].sub.y wherein M is a metal selected from the group consisting of Cr, Fe, Co, Ni, Mo, Ru, Rh, Pd, Ta, W, Re, Os, Ir, Pt, La and Ce; L is an aromatic hydrocarbon, e.g., benzene, diphenyl, etc., or a diaromatic hydrocarbon, e.g., naphthalene; X is a halogen; x is an integer from 1 to 10 inclusive; and y is an integer from 1 to 10 inclusive; and (B) tris(triphenylphosphine)rhodium(I)halide or tris(triphenylphosphine)ruthenium(I)halide. In use the process comprises admixing the gasoline with water. The above-identified water-soluble, organo-metallic selective benzene hydrogenation catalyst mixture is then added. A catalytic hydrogenation is then carried out in a hydrogenation zone at a temperature of about 150.degree. to about 245.degree. C. at a pressure of up to about 1000 psi in a hipbasic system of the water and the gasoline. The benzene is selectively solubilized in the water and thus is selectively hydrogenated in the presence of the above-identified water soluble organo-metallic catalyst mixture. The gasoline is then recovered from the hydrogenation zone. This combination of both catalysts was found to produce conversions in excess of 40% which was much greater than either of the catalysts separately and at the lowest effective temperature of 150.degree. C.

Catalyst composition for the selective hydrogenation of benzene and

Novel bituminous coating compositions, bituminous paving compositions and asphaltic compositions are provided herein. These compositions have, in common, from about 0.1% to about 8% by weight of a nitrogen-containing, adhesion-improving, anti-stripping agent therein. Such agent is a sewage sludge-derived oil, or a fraction thereof, which comprises a mixture of saturated aliphatic hydrocarbons, monoaromatic hydrocarbons, diaromatic hydrocarbons, polyaromatic hydrocarbons, polar compounds and basic, pyridine-soluble compounds having the following elemental composition: nitrogen, about 3.4% to about 5% by weight; oxygen, about 5.8% to about 6.9% by weight; sulfur, about 0.3% to about 0.8% by weight; hydrogen, about 9.7% to about 10.4% by weight; and carbon, about 76.9% to about 79.8% by weight.

Adhesion of asphalt to aggregates

A novel process is provided for the selective hydrogenation of benzene in a solution of gasoline and other aromatic organic compounds. The process includes the steps of carrying out the catalytic hydrogenation in a hydrogenation zone at a temperature of about 45.degree. to about 250.degree. C. at a pressure of about 200 psi to about 500 psi in a biphasic system of aqueous and organic liquids the hydrogenation catalyst being water-soluble. The organic liquid is removed from the hydrogenation zone. At least a catalytic amount of the catalyst is retained in the hydrogenation zone. The catalyst above described is also a facet of this invention.

Catalyst and process for the selective hydrogenation of benzene

A novel asphaltic composition is provided herein. The composition consists of comminuted aged asphaltic pavement material and an effective amount, from about 2% to about 15% by weight of a blend of a soft asphalt cement, a conventional asphalt cement, or a cutback asphalt, with a nitrogen-containing, adhesion-improving, anti-stripping agent comprising a sewage sludge-derived oil, or a fraction thereof, the sewage sludge-derived oil comprising a mixture of saturated aliphatic hydrocarbons, monoaromatic hydrocarbons, diaromatic hydrocarbons, polyaromatic hydrocarbons, polar compounds and basic, pyridene-soluble compounds, having the following elemental chemical composition: nitrogen, about 3.4% to about 5% by weight; oxygen, about 5.8% to about 6.9% by weight; sulfur, about 0.3% to about 0.8% by weight; hydrogen, about 9.7% to about 10.4%, and carbon, about 76.9% to about 79.8%.

Softening agents for recycling asphalt pavement

A method is provided for treating a sewage sludge-derived oil having a particular chemical composition, to reduce its odor. The method includes the first step of distilling the sewage sludge-derived oil to 150.degree. C. to remove water and volatile organic components, and then the essential step of circulating a gas consisting essentially of carbon dioxide gas therethrough.

Deodorization of sewage sludge-derived oils

A reverse osmosis process is described for removing alcohols from hydrocarbons, in the additional presence of ethers. Depending on the nature of the membrane used, the methanol can be selectively removed as the membrane permeate or retained as the membrane concentrate. The membrane may be made from cellulose esters, polyethylene, polyvinylchloride, polyvinylidene chloride-polyvinyl chloride, etc.

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Nepean, Canada

Brian A Farnand