84 results about "Organonitrogen compounds" patented technology

Deep desulfurization of hydrocarbon feeds containing undesired organosulfur and organonitrogen compounds to produce a hydrocarbon product having low levels of sulfur-containing and nitrogen-containing compounds, is achieved by first subjecting the entire feed to an extraction zone to separate an aromatic-rich fraction containing a substantial amount of the refractory organosulfur and organonitrogen compounds and an aromatic-lean fraction containing a substantial amount of the labile organosulfur and organonitrogen compounds. The aromatic-lean fraction is contacted with a hydrotreating catalyst in a hydrotreating reaction zone operating under mild conditions to convert the labile organosulfur and organonitrogen compounds. The aromatic-rich fraction is oxidized to convert the refractory organosulfur and organonitrogen compounds to oxidized organosulfur and organonitrogen compounds. These oxidized organosulfur and organonitrogen compounds are subsequently removed, producing a stream containing reduced levels of organosulfur and organonitrogen compounds.

Provided are a carbon fiber reinforced composite material which exhibits excellent flame retardance, fast curing properties, heat resistance, and mechanical characteristics. Also provided are an epoxy resin composition suitable for use in producing said carbon fiber reinforced composite material as well as a prepreg and housing for electronic/electrical components. The epoxy resin composition is characterized by comprising: [A] an epoxy resin containing at least 50 mass % of a compound as represented by general formula (I), [B] an organic nitrogen compound based curing agent, [C] a phosphoric acid ester, and [D] a phosphazene compound. In general formula (I), R₁, R₂, and R₃ are either a hydrogen atom or a methyl group, and n is an integer of 1 or higher.

The process of treating hydrogenation catalyst before application includes making the hydrogenation catalyst in oxide state to support organic acid and/or organic nitrogen compound, organic solvent and element sulfur and treating in dynamic heating equipment. The hydrogenation catalyst with supported sulfur containing matter, such as element sulfur, has raised sulfur containing matter utilization rate, smooth temperature raising in the catalyst bed, raised catalyst activity and other features. The method of the present invention may be applied for various kinds of hydrogenation catalyst.

The present invention relates to a method of treating exhaust gas pollutants, notably of an internal-combustion engine, with a system comprising an exhaust line (L) with selective catalytic reduction catalysis means (62) and injection means (82) for injecting a reducing agent into the line so as to treat the pollutants, characterized in that it consists in:

• • heating an organonitrogen compound so as to decompose it into a mixture of at least an ammonia-containing reducing agent in the gas phase, another reducing agent in the gas phase and steam,
  • compressing, then cooling this mixture so as to condense the steam to a liquid water phase and to obtain a gas phase of one of the two reducing agents and a liquid phase of the other reducing agent,
  • injecting one of the reducing agents into the exhaust line in combination with said catalysis means (62) in order to treat the pollutants of these gases.

According to a compressor and a refrigeration cycle device using same of the present invention, a refrigerant and refrigeration oil 103 are sealed in an container 101, the refrigerant is a hydrofluoroolefin having double bond of carbon in its composition or a mixture of hydrofluoroolefin as a base component and hydrofluorocarbon having no double bond, and at least one of benzotriazole, dialkyl dithiophosphoric acid zinc, dialkyl selenium, metal phenate, and organic nitrogen compound is included in the refrigeration oil 103, and it is an object to suppress the decomposition and polymerization of refrigeration oil and a refrigerant, and to secure reliability of the compressor and the refrigeration cycle device.

The present invention belongs to the field of environment protecting technology, and is especially sewage treating micro algae apparatus and process with high photosynthesis efficiency, high sewage treating efficiency and short sewage treating period. The sewage treating micro algae apparatus includes culture medium comprising carbon source of sodium carbonate, sodium bicarbonate, carbonic acid, CO2 or their mixture; nitrogen source of inorganic and/or organic nitrogen compound; phosphorus source of inorganic and/or organic iron compound; and inorganic salt selected from sodium salt, potassium salt, magnesium salt, etc. The present invention is used mainly for sewage treatment.

A feed additive for monogastric animals, comprising dried glutamic acid fermentation solubles, dried corn fermentation solubles, or a mixture of dried glutamic acid fermentation solubles, wherein said dried solubles have been dried to a total moisture content of less than 30% by weight at a temperature that does not denature any organic nitrogen compounds present in the solubles and wherein the feed additive increases reproductive efficiency in monogastric animals.

This invention relates to the compound of hydro catalyst and its preparation method. The compound contains the hydro catalyst, the organic nitrogen compound the content of which is 0.5-20%, the sulfur element which is composed of 30-150% sulfur demand of the hydro catalyst and the organic solution the weight of which is 0.1-50% of the catalyst. The preparation processes is leading-in the demanded mater when the hydro catalyst is oxide. This hydro catalyst compound can improve the sulfur holding ratio of the catalyst which is activated, and slow up the concentrate heat release, decrease the elevated temperature of the catalyst bed, and increase the activity of the catalyst through the lead-in organic nitrogen, sulfur and organic solution. This invention can be applied to the treatment processes of any hydro catalyst.

The present invention provides a catalyst composition which can decompose an organic nitrogen compound at a relatively low temperature to convert the compound to N₂ and render it harmless in the purification of an exhaust gas containing the compound (nitrogen-based exhaust gas); a catalyst containing the catalyst composition; a method for producing the catalyst; and an exhaust gas purification apparatus containing the catalyst.

By using a catalyst composition formed by mixing copper oxide particles and zeolite particles, an organic nitrogen compound and/or ammonia can be converted to N₂ highly selectively. The catalyst composition of the present invention may further contain a manganese oxide and/or a precious metal.

A method of disposing waste includes the step of forming a primary waste pond called an Advanced Facultative Pond (AFP). A stable microbiological methane fermentation zone is established within the AFP. The system constitutes a complete primary treatment of organic waste and wastewater that does not require daily sludge handling typically associated with organic waste treatment and disposal The method of the invention converts organic compounds, including settleable solids, into methane. The invention controls sulfide odors from methane fermentation. The invention also provides a method of filtering raw wastewater through a bed of fermenting organic solids suspended by gas evolved in a fermentation zone. Hydrogen sulfide is oxidized in accordance with the invention. The technique of the invention biologically increases pH near the pond surface, thus retaining hydrogen sulfide in solution in the pond water. The biological increasing of the pH level near the pond surface increases the rate of die-away of pathogenic bacteria. The invention transforms proteins and other organic nitrogen compounds to nitrogen gas. The invention also transforms proteins and other organic nitrogen compounds to nitrogen gas; the invention detoxifies chlorinated hydrocarbons and volatile organic compounds; the invention captures and stores gases evolved from methane fermentation; the invention removes heavy metals, while establishing meromixis in fermentation cells or zones within primary wastewater ponds.

The present invention refers to a process for the catalytic epoxidation of olefins in the presence of a titanium containing zeolite catalyst and a polar solvent whereby the deactivation of the catalyst upon recycling of the solvent has been considerably reduced. In the process one or more nitrogen containing compounds are introduced at some stage, a solvent stream is recovered, treated to contain less than 50 wppm nitrogen in the form of organic nitrogen compounds and at least a part of it is recycled to the epoxidation step. The invention is also directed towards a process for the catalytic epoxidation of propene which integrates the inventive treatment and recycle of the solvent into the workup of the reaction mixture.

A process for treating the hydrocatalyst before it is used features that the organic acid and/or organic nitride, organic solvent and sulfur are introduced to the oxidation-state hydrocatalyst for higher activity.

A process for the catalytic epoxidation of olefins in the presence of a titanium containing zeolite catalyst and a polar solvent whereby the deactivation of the catalyst upon recycling of the solvent has been considerably reduced. In the process one or more nitrogen containing compounds are introduced at some stage, a solvent stream is recovered, treated to contain less than 50 wppm nitrogen in the form of organic nitrogen compounds and at least a part of it is recycled to the epoxidation step. Also disclosed is a process for the catalytic epoxidation of propene which integrates the treatment and recycle of the solvent into the workup of the reaction mixture.

Reduction of sulfur-containing and nitrogen-containing compounds from hydrocarbon feeds is achieved by first contacting the entire feed with a hydrotreating catalyst in a hydrotreating reaction zone operating under mild conditions to convert the labile organosulfur and organonitrogen compounds. An extraction zone downstream of the hydrotreating reaction zone separates an aromatic-rich fraction that contains a substantial amount of the remaining refractory organosulfur and organonitrogen compounds. The aromatic-lean fraction is substantially free of organosulfur and organonitrogen compounds, since the non-aromatic organosulfur and organonitrogen compounds were the labile organosulfur and organonitrogen compounds which were initially removed by mild hydrotreating. The aromatic-rich fraction is oxidized to convert the refractory organosulfur and organonitrogen compounds to oxidized sulfur-containing and nitrogen-containing hydrocarbon compounds. These oxidized organosulfur and organonitrogen compounds are subsequently removed.

Disclosed is a process for removing nitrogen from a hydrocarbon feed stream by contacting the hydrocarbon feed stream with an adsorbent at nitrogen removal conditions to produce a hydrocarbon effluent stream having a lower nitrogen content relative to the hydrocarbon feed stream. The hydrocarbon feed stream comprises an aromatic compound, an organic nitrogen compound, and a diolefin compound.

The invention relates to a method for preparing active argil granular preparation by using bentonite, and aims to prepare active argil with the characteristics of large specific surface area, pore volume and aperture, high surface acid content, water resistance, good activated adsorption, high granule compressive strength and the like. The method has another aim that the granular preparation can be applied to petrochemical production, and also can be applied to purifying waste water and waste gas containing oil and mercury and purifying drinking water. The invention adopts the technical scheme that the method for preparing the multifunctional efficient granular active argil preparation with high strength and water resistance and application thereof comprise the following steps: 1) ore dressing; 2) slurrying and purifying; 3) acidifying; 4) rinsing; 5) filter pressing; 6) molding; 7) drying and crushing; and 8) packing. The obtained active argil granular preparation can remove and reduce olefin and hydroxyl compounds and organic nitrogen compounds in petrochemical arene, and can be applied to the treatment of oil-contained wastewater and mercury-contained wastewater and waste gas.

The present invention relates to hydrocarbon hydrotreating process including the steps of loading catalyst into the reactor, activating, reaction, etc. The hydrotreating catalyst contains organic nitrogen compound in 0.5-20 wt% of the catalyst, simple substance sulfur in the amount of 30-150 % of the theoretical sulfur demand of the catalyst, and organic solvent in 0.1-50 wt% of the catalyst. The hydrotreating catalyst with the common action of organic nitrogen compound, sulfur and organic solvent has high sulfur holding rate in activation, less concentrated heat release, lowered temperature rise in the catalyst bed and high activity. It may be applied in various kinds of hydrocarbon hydrotreating process.