Intevep, S.a.

Ciemat

Ethz

Domingo P Rodriguez

Cebers O Gomez

Alfredo L Morales

Aldo Steinfeld

Manuel Romero

Julian Blanco

Roberto Schemel

Roy Payne

Hercilio Rivas

Ignacio A Layrisse

Jose Carrazza

Ramon Salazar

Euler G Jimenez

Juan Carlos De Jesus

Philipp Haueter

Jose P Salazar

Andreas Z'Graggen

Dominic Trommer

Felix Abraham Silva

Alejandro Izquierdo

Leon Velasco

Carlos Mota

An apparatus for thermochemical conversion of solid carbonaceous materials into fluid fuels using a fluid source of oxygen and an external source of concentrated radiation includes a reactor having a wall defining a cavity; a radiation inlet positioned in the wall for passing concentrated radiation into the cavity; and at least one inlet for introducing a fluid reactant flow of a source of oxygen and particles of carbonaceous material into direct exposure to the concentrated radiation in the cavity so as to heat and thermochemically convert the particles into fluid fuel. A process and system are also provided. The fluid source of oxygen is preferably steam and the carbonaceous material is preferably particles of petcoke.

Method for gasification of carbonaceous solid materials

Apparatus and gasification of carbonaceous solid materials

A process for thermochemical conversion of heavy oil and petroleum coke to fluid fuels includes the steps of: providing a fossil fuel selected from the group consisting of heavy oil, petroleum coke and mixtures thereof; and exposing the fossil fuel to an external source of concentrated radiation so as to increase the temperature of the fossil fuel, supply high-temperature heat required for the desired endothermic conversion process, and convert the fossil fuel to a product selected from the group consisting of hydrogen, carbon monoxide, gaseous hydrocarbons and mixtures thereof.

Process for converting heavy crude oils and petroleum coke to syngas using external source of radiation

A process for the in-situ production of an effluent sorbent-oxide aerosol during the combustion of a hydrocarbon containing fuel whereby the effluents are removed from the resultant gaseous hydrocarbon stream comprises admixing an aqueous solution of the sorbent with the fuel, atomizing and combusting the mixture under controlled conditions so as to generate the effluent sorbent-oxide aerosol.

Process for the in-situ production of a sorbent-oxide aerosol used for

A process for producing a sulfur sorbent composition in a mixer having a mixer paddle an energy supply is disclosed which includes hydrating an alkaline earth metal oxide in an aqueous solution containing a promoting additive selected from a group consisting of urea and mixtures of urea with a water soluble iron salt under high intensity mixing conditions with the mixer wherein the mixer is operated at a mixer paddle tip velocity of at least 500 ft/min and a mixer energy input of at least 3.5 kW-h per ton of sorbent so as to produce a sulfur sorbent composition having the following physical and chemical properties: alkaline earth metal (wt. %)--40-52, molar ratio of promoting additive to alkaline earth metal--0.001-0.2, bulk density (g/ml)--0.35-0.75, surface area (m.sup.2 /g)--5-25, pore volume (cc/g)--0.05-0.14 and mean particle size (um)--4.

Sorbent for treatment of effluent gas stream

The present invention relates to an improved sorbent for use in removing effluents such as sulfur dioxide from combustion gas streams. The sorbent comprises a hydroxide formed from an alkaline-earth based material such as lime and having incorporated therein an iron and organic compound promotion addition to enhance its ability to remove effluents from the gas stream. The sorbent is formed by co-dissolving an iron salt and an organic compound in a hydration solution and thereafter mixing the hydration solution containing the iron salt and the organic compound with an alkaline-earth based material. The sorbent thus produced may be injected into a gas stream in either dry or slurry form to remove the effluents.

Alkaline-earth based sorbent for removing effluent from a gas stream

A process for producing a sulfur sorbent composition in a mixer having a mixer paddle an energy supply is disclosed which includes hydrating an alkaline earth metal oxide in an aqueous solution containing a promoting additive selected from a group consisting of urea and mixtures of urea with a water soluble iron salt under high intensity mixing conditions with the mixer wherein the mixer is operated at a mixer paddle tip velocity of at least 500 ft/min and a mixer energy input of at least 3.5 kW-h per ton of sorbent so as to produce a sulfur sorbent composition having the following physical and chemical properties: alkaline earth metal (wt.%)--40-52, molar ratio of promoting additive to alkaline earth metal--0.001-0.2, bulk density (g/ml)--0.35-0.75, surface area (m.sup.2 /g)--5-25, pore volume (cc/g)--0.05-0.14 and mean particle size (.mu.m)--4.

A process for controlling sulfur-oxide formation and emissions when burning a combustible fuel prepared from a hydrocarbon containing sulfur comprising forming a hydrocarbon in water emulsion and adding to the hydrocarbon in water emulsion a water soluble additive selected from the group consisting of Na.sup.+, K.sup.+, Li.sup.+, Ca.sup.++, Ba.sup.++, Mg.sup.++, Fe.sup.+++ and mixtures thereof so as to obtain SO.sub.2 emission levels upon combustion of said emulsion of less than or equal to 1.50 LB/MMBTU.

Process for controlling sulfur-oxide formation and emissions when

A process for the production of high quality petroleum tar pitch for use as a binder in the manufacture of electrodes for the aluminum and steel industries from a highly aromatic feed comprises fractionating the feed in an oxygen-free environment under controlled conditions so as to obtain a specific quality petroleum tar pitch.

Process for the production of petroleum tar pitch for use as a binder in

A process for producing metallurgical coke from a hydrocarbon residuum characterized by high vanadium and high sulphur contents comprises coking a hydrocarbon residuum in a coking drum in the presence of an additive selected from the group consisting of carbonates and hydroxides of sodium, potassium and calcium and mixtures thereof and an oxidizing agent selected from the group consisting of water, carbon dioxide and mixtures thereof.

Process for removing vanadium and sulphur during the coking of a

A process for the regeneration of a spent catalyst used in the upgrading of heavy hydrocarbon feedstocks comprises roasting a spent natural iron base catalyst contaminated with carbon, sulfur and vanadium at a temperature of not more than 400.degree. C. in the presence of a carbonate selected from the group consisting of sodium, potassium, and mixtures thereof so as to eliminate carbon from the catalyst and obtain a roasted product containing iron oxide and water soluble salts of sulfur and vanadium. The roasted product is thereafter water leached so as to dissolve the soluble salts of sulfur and vanadium. The regenerated catalyst is thereafter separated from the leaching liquor so as to obtain a catalyst substantially free of carbon and sulfur.

Process for the regeneration of spent catalyst used in the upgrading of

A method for precipitating vanadium from vanadium bearing liquors comprises adjusting the pH of the vanadium bearing liquor with a precipitating agent selected from the hydroxides of Na, K and Ca to a range of about 5.5 to 6.5, preferably 6.0 to 6.2 so as to precipitate vanadium in the trivalent and tetravalent states. Remaining traces of vanadium are then cemented by additions of calcium hydroxide, calcium oxide or mixtures thereof. The dried precipitate is then heated in the presence of air and Na and/or K so as to form a reaction product in the form of a water soluble salt which, when dissolved in water, results in vanadium in its pentavalent state.

Method for precipitating vanadium from vanadium bearing liquors and

A method for the removal and recovery of vanadium from a vanadium bearing material by leaching the vanadium bearing material in the presence of a leach promoter and removing the vanadium so leached from the leaching solution by precipitation. The leaching promoter forces the vanadium present in the vanadium bearing material into solution.

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Los Teques, Venezuela

Domingo P Rodriguez