Abstract: Method for producing hydrogen and a hydroprocessed product from a hydrocarbonaceous feedstock by subjecting it to a catalytic hydrocracking treatment using hydrogen which has been at least partly produced from hydrocracked feedstock and subjecting at least pan of the hydrocracked feedstock, after having subjected it to a separation treatment in the event that hydroprocessed product is to be recovered, to a treatment to produce hydrogen in a single operation which hydrogen is at least partly recovered as product.

Abstract: A photocatalytic composition includes at least a photocatalyst agent and at least an inorganic binding agent, characterized in that the inorganic binding agent includes an aqueous colloidal silica dioxide (SiO2) dispersion, the aqueous colloidal silica dioxide dispersion including particles capable of being bound to one another after coating the photocatalyst agent.

Abstract: In a reforming catalyst apparatus provided with a reforming catalyst for forming a hydrogen rich reformed gas by a reforming reaction of the fuel with water, the catalyst performance can be recovered by heating the catalyst within a temperature ranging from 500° C. to 800° C. while supplying said fuel and air to the catalyst. This method allows recovery of the catalyst performance without demounting the catalyst from the reforming catalyst apparatus and allows providing the reforming catalyst with a long service life.

Abstract: Novel iron sulfides having excellent durability and excellent treating properties of heavy metals, processes for producing the iron sulfides, iron sulfide mixture, a heavy metal treating agent containing either of these novel iron sulfides as an effective component, and a method by which wastes containing various heavy metals are treated with the heavy metal treating agent are disclosed. The iron sulfide having a mackinawite structure which contains FeMxNySz wherein M represents an alkaline earth metal, N represents an alkali metal, and x, y and z, indicating the molar proportions of the respective elements, represent numbers satisfying 0.01<x?0.5, y?0.2 and 0.7?z?1.4, as an essential component.

Abstract: A process is provided for the regeneration of a heterogeneous catalyst used for the preparation of compounds containing NH2 groups by the hydrogenation, with hydrogen, of compounds containing at least one unsaturated carbon-nitrogen bond, wherein a) the feed of the compound to be hydrogenated is stopped and b) the heterogeneous catalyst is treated with a compound of the formula R1R2N—CO—R3??(I), in which R1 is hydrogen or C1-C4 alkyl and R2, R3 independently of one another are each hydrogen or C1-C4 alkyl or together are a C3-C6 alkylene group, or mixtures of such compounds, at a pressure ranging from 0.1 to 30 MPa and a temperature ranging from 100 to 300° C., with the proviso that the compound of formula (I) is in liquid form during the treatment.

Abstract: Provided is a method and plant for reducing SO2 emissions in which a catalyst for catalyzing the formation of cement clinker is extracted from kiln exhaust gas and recycled.

Abstract: A process for the catalytic partial oxidation of a hydrocarbonaceous feedstock with an oxygen-containing gas, wherein a flow of a feed mixture comprising the hydrocarbonaceous feedstock and the oxygen-containing gas is contacted with a catalyst comprising at least one metal selected from Group VIII of the Periodic Table supported on a catalyst carrier to form a conversion product comprising carbon monoxide and hydrogen, wherein the catalyst is retained in a fixed arrangement in a reactor comprising a feed supply chamber which is in fluid communication with the upstream surface of the fixed arrangement, in which process a part of the conversion product formed flows back to the feed supply chamber. The invention further relates to an electrical-energy generating process, an electrical-energy generating system, and transport means provided with this electrical-energy generating system.

Abstract: Provided is a process for preparing a non-pyrophoric catalyst having about 2 to 20 wt. % of a copper component, wherein at least 50 wt. % of the copper component is in the form of a copper oxide, aluminum oxide-spinel. The catalyst can be prepared by forming a mixture of a copper precursor and an alumina precursor, coextruding the mixture, drying the coextrudate and calcining the dried coextrudate at a temperature of at least 600° C. In other aspects, the invention also relates to processes for the activation of copper-based catalysts and for the regeneration of deactivated copper-based catalysts.

Abstract: A method for partially oxidizing, in a Claus furnace, at least one gas containing hydrogen sulfide and ammonia with at least one gas rich in oxygen. The residual ammonia content at the outlet of the furnace is measured with a laser diode. Based upon this measurement, the flow rates of the ammonia containing gases and the oxygen rich gases may be modified to obtain the desired residual ammonia content.

Abstract: A process for production of a partially hydrophilized absorbent is described, which comprises using, as a starting material, porous particles made of an organic compound having properties such that they are shrunk in a solvent containing water as a major component and swollen in a solvent containing an organic solvent as a major component; newly introducing functional groups to react with any one compound selected from the group consisting of compounds containing hydroxyl, amino, carboxyl, halogen or epoxy group in a solvent containing an organic solvent as a major component; and then reacting with a compound containing alcoholic OH group in a solvent containing water as a major component to immobilize the compound containing alcoholic OH group on the outer surfaces of the particles.

Abstract: An in situ process for conducting regeneration of spent hydrocarbon synthesis catalyst. Regenerated, but not yet re-activated, catalyst (15) may be introduced into an operating HCS reactor (1) that has catalyst rejuvenation means (14). Any combination of a fresh, activated catalyst, a fresh, passivated catalyst or short-term or long-term deactivated catalysts may already be present in the HCS reactor (1). The regenerated, but not yet re-activated catalyst is activated in the HCS reactor (1) with rejuvenation means (14) at normal process conditions. The HCS reactor (1) receives syngas through the inlet line (3) and releases liquid hydrocarbons through outlet line (4) and gaseous hydrocarbon and unreacted syngas through the offgas line (2). Catalyst is removed from the HCS reactor (1) through the slipstream line (5) and into a filtration unit (6) which is fed with a stripping fluid (7). The filtered catalyst proceeds to the regeneration unit (9) which is fed a regenerative fluid (10).

Abstract: A heat exchanger design is provided for optimal transfer of thermal energy between a primary reactor-out reformate and a primary reactor-in steam and air. In particular, one embodiment of the present invention comprises a prime-surface true counterflow heat exchanger positioned around the primary reactor. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that is will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: The present invention concerns a method for preparing a CO2-rich gas stream for injection purposes or deposition, and a hydrogen rich gas stream, the method comprising the following steps: a) natural gas and H2O are fed into a one-step reforming process for preparing a gas mixture comprising CO2 and H2 under supercritical condition for water from about 400° C. to about 600° C. and pressure from about 200 to about 500 bar in the reforming reactor; b) the gas mixture from a) is separated into a H2-rich and CO2-rich gas stream, respectively. The invention also comprises use of CO2-rich gas stream for injection into marine formations, and use of H2-rich stream for hydrogenation, as a source of energy/fuel in fuel cells and for production or electricity.

Abstract: The present invention relates to a process for the preparation of synthesis gas (i.e., a mixture of carbon monoxide and hydrogen), typically labeled syngas. More particularly, the present invention relates to a regeneration method for a syngas catalyst. Still more particularly, the present invention relates to the regeneration of syngas catalysts using a re-dispersion technique. One embodiment of the re-dispersion technique involves the treatment of a deactivated syngas catalyst with a re-dispersing gas, preferably a carbon monoxide-containing gas such as syngas. If necessary, the catalyst is then exposed to hydrogen for reduction and further re-dispersion.

Abstract: A bed of calcium oxide and/or barium oxide in particulate form is continuously moved through a contact reaction zone such that it enters into countercurrent reaction with the feedstock and the reaction is performed in a reaction column equipped with an agitating/moving device by which the halide which is the product of reaction between the organic halide and the oxide is continuously discharged to the outside of the reaction zone.

Abstract: A method of decreasing nitrate nitrogen and volatile organic compounds in soil and groundwater by burying a fatty acid having 10 or more carbon atoms, an alcohol having 12 or more carbon atoms, an ester of a linear saturated fatty acid having 14 or more carbon atoms and a monohydric alcohol, an ester of a linear saturated fatty acid having 14 or more carbon atoms and a polyhydric alcohol, an ester of a fatty acid having 16 or more carbon atoms and glycerine, and the like in soil containing nitrate nitrogen and volatile organic compounds. This method allows for on site treatment, high biological denitrification and a decrease in volatile organic compounds secondary pollution by the release of organic matter and nitrogen into the environment is extremely small.

Abstract: An exhaust gas purifying catalyst including a catalyst component containing a refractory inorganic oxide carrying a platinum family metal, a nitrogen oxide adsorbent, and a hydrocarbon adsorbent and a catalyst component for the purification of nitrogen oxide and a method for the purification of an exhaust gas by the use of the catalyst.

Abstract: In a method of purifying an aluminium salt from a first aqueous aluminium salt solution of a raw material containing impurities, which comprise salts of at least one more noble metal than aluminium dissolved therein, a method of purifying a metal salt from inorganic impurities in an aqueous solution thereof is included. A plant for carrying out the method is also shown.

Abstract: Oxygen or oxygen-enriched air is employed to support combustion in furnace (16) of part of the hydrogen sulphide content of a first feed gas stream. Sulphur is extracted from the resulting gas stream in a sulphur condenser (26). Catalyst Claus reaction between hydrogen sulphide and sulphur dioxide in the resulting sulphur vapour depleted gas stream takes place in a catalytic reactor (32). Sulphur is extracted in a further sulphur condenser (34). The resulting sulphur vapour depleted gas stream is passed into a catalytic reduction reactor (40) in which all the residual sulphur dioxide and any sulphur vapour are reduced to hydrogen sulphide. The resulting reduced gas mixture has water vapour extracted there from in a quench tower (52). The resulting water vapour depleted gas stream flows to a Claus plant for further treatment typically together with a second feed gas stream.

Abstract: When a diamond is brazed to a metal substrate, while obtaining a stable joining strength, a joined interface of the diamond is not eroded to provide a good joint with a beautiful view. A brazing-filler material containing at least one selected from a group consisting of gold and silver, and copper as principal components, and further containing 0.001 to 5 mass % of vanadium is used. Preferably, a vanadium content is not more than 2.0 mass %, and more preferably not more than 0.5 mass %. Using this brazing-filler material, unidirectional solidification is performed from a side of diamond to form vanadium carbide in a joined interface in a shape of islands, and thereby an interface having a beautiful view with stable joining strength can be obtained. In addition, strong joining is possible also by a usual solidification method.