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5932results about "Gasification processes details" patented technology

Hydrogen production from carbonaceous material

Hydrogen is produced from solid or liquid carbon-containing fuels in a two-step process. The fuel is gasified with hydrogen in a hydrogenation reaction to produce a methane-rich gaseous reaction product, which is then reacted with water and calcium oxide in a hydrogen production and carbonation reaction to produce hydrogen and calcium carbonate. The calcium carbonate may be continuously removed from the hydrogen production and carbonation reaction zone and calcined to regenerate calcium oxide, which may be reintroduced into the hydrogen production and carbonation reaction zone. Hydrogen produced in the hydrogen production and carbonation reaction is more than sufficient both to provide the energy necessary for the calcination reaction and also to sustain the hydrogenation of the coal in the gasification reaction. The excess hydrogen is available for energy production or other purposes. Substantially all of the carbon introduced as fuel ultimately emerges from the invention process in a stream of substantially pure carbon dioxide. The water necessary for the hydrogen production and carbonation reaction may be introduced into both the gasification and hydrogen production and carbonation reactions, and allocated so as transfer the exothermic heat of reaction of the gasification reaction to the endothermic hydrogen production and carbonation reaction.
Owner:BOARD OF SUPERVISORS OF LOUISIANA STATE UNIV & AGRI & MECHANICAL COLLEGE +1

Apparatus for converting coal to hydrocarbons

An apparatus for forming liquid hydrocarbons from solid coal. The coal is pulverized to provide a particulate coal feed, which is then extruded to provide a hollow tube of compressed coal supported inside of a support tube. A clay feed is extruded to provide a hollow tube of compressed clay supported inside of the coal tube and a combustible fuel is burned inside of the clay tube. The temperature of combustion is sufficient to fire the extruded clay and pyrolyze the extruded coal to produce hydrocarbon gases and coal char. The support tube has holes for releasing the hydrocarbon gases, which contain suspended particles formed during combustion. The suspended particles are removed from the hydrocarbon gases to provide clean gases, which are passed through an ionizing chamber to ionize at least a portion thereof. The ionized gases are then passed through a magnetic field to separate them from each other according to their molecular weight. Selected portions of at least some of the separated gases are mixed, and the mixed gases are cooled to provide at least one liquid hydrocarbon product of predetermined composition. Portions of the separated gases may also be mixed with the coal char and other input streams, such as waste plastics, and further treated to provide other hydrocarbon products.
Owner:WOOTTEN WILLIAM A

Biomass fast pyrolysis system utilizing non-circulating riser reactor

A biomass fast pyrolysis system for conversion of biomass vegetation to synthetic gas and liquid fuels includes: a) a non-circulating riser reactor for pyrolysis of biomass vegetation feedstock utilizing a heat carrier, the non-circulating riser reactor being physically structured and adapted to have a rate of reaction of at least 8,000 biomass vegetation feedstock lbs / hr / ft2, utilizing a ratio of heat carrier to biomass vegetation feedstock of about 7:1 to about 11.5:1, the riser reactor having a base input region at its bottom, a central reaction region and an output region at its top, the riser reactor including a cyclone disengager at its output region for separation of pyrolysis resulting char and heat carrier from the pyrolysis product gases, the cyclone disengager having an output downcomer and an output upcomer, the cyclone disengager output downcomer being connected to and feeding into a side combustor unit, the riser reactor being a non-circulating riser reactor in that the heat carrier is not returned directly to the riser reactor from the cyclone disengager and travels first down the cyclone disengager output downcomer to the side combustor unit; and, b) the side combustor unit for combusting pyrolysis resultant char and reheating the heat carrier the side combustor having a heat carrier downcomer connected to the base input region of the riser reactor.
Owner:INNOVATIVE ENERGY GLOBAL
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