A reactor configuration is proposed for selectively converting gaseous, liquid or solid fuels to a syngas specification which is flexible in terms of H.sub.2/CO ratio. This reactor and system configuration can be used with a specific oxygen carrier to hydro-carbon fuel molar ratio, a specific range of operating temperatures and pressures, and a co-current downward moving bed system. The concept of a CO.sub.2 stream injected in-conjunction with the specified operating parameters for a moving bed reducer is claimed, wherein the injection location in the reactor system is flexible for both steam and CO.sub.2 such that, carbon efficiency of the system is maximized.

The present invention concerns spheroidal alumina particles characterized by a BET specific surface area in the range 150 to 300 m.sup.2/g, a mean particle diameter in the range 1.2 to 3 mm and a particle diameter dispersion, expressed as the standard deviation, not exceeding 0.1, a total pore volume, measured by mercury porosimetry, in the range 0.50 to 0.85 mL/g, a degree of macroporosity within a particle of less than 30%, and in which the dispersion of the diameters of the macropores, expressed as the ratio D90/D50, does not exceed 8. The invention also concerns processes for the preparation of said particles as well as catalysts comprising said particles as a support, and their use in catalytic hydrocarbon treatment processes, in particular in a catalytic reforming process.

The present invention concerns spheroidal alumina particles characterized by a BET specific surface area in the range 150 to 300 m.sup.2/g, a mean particle diameter in the range 1.2 to 3 mm and a particle diameter dispersion, expressed as the standard deviation, not exceeding 0.1, a total pore volume, measured by mercury porosimetry, in the range 0.50 to 0.85 mL/g, a degree of macroporosity within a particle of less than 30%, and in which the dispersion of the diameters of the macropores, expressed as the ratio D90/D50, does not exceed 8. The invention also concerns processes for the preparation of said particles as well as catalysts comprising said particles as a support, and their use in catalytic hydrocarbon treatment processes, in particular in a catalytic reforming process.

The present disclosure provides a system comprising a reactor, a medium temperature heating section and a superheating section. The reactor comprises a moving packed bed of catalytic particles and a feed gas interacting with the catalytic particles. A decomposition and reaction section of the reactor is configured to receive the catalytic particles and the feed gas, and to provide heat transfer between the catalytic particles and the feed gas such that a reaction occurs that generates a gaseous product and a solid product. The medium temperature heating section is configured to heat at least one of gases or catalytic particles to a first defined temperature, and the superheating section is configured to heat the at least one of gases or catalytic particles received from the medium temperature heating section with an electrical system and to provide the at least one of gases or catalytic particles heated to the reactor.

The present disclosure provides a system comprising a reactor, a medium temperature heating section and a superheating section. The reactor comprises a moving packed bed of catalytic particles and a feed gas interacting with the catalytic particles. A decomposition and reaction section of the reactor is configured to receive the catalytic particles and the feed gas, and to provide heat transfer between the catalytic particles and the feed gas such that a reaction occurs that generates a gaseous product and a solid product. The medium temperature heating section is configured to heat at least one of gases or catalytic particles to a first defined temperature, and the superheating section is configured to heat the at least one of gases or catalytic particles received from the medium temperature heating section with an electrical system and to provide the at least one of gases or catalytic particles heated to the reactor.

A moving packed bed processing plant may include a reactor, a medium temperature heating section, and a superheating section. The reactor comprises a moving backed bed of particles where a decomposition and reaction section of the reactor is configured to provide heat transfer between particles of the moving packed bed of particles and the feed gas such that a reaction occurs that generates a gaseous product and a solid product. The medium temperature heating section is configured to heat particles to a first defined temperature, and the superheating section is configured to heat particles from the medium temperature heating section to a second defined temperature, and to provide the heated particles heated to the reactor, where the reactor utilizes the particles from the superheating section to transfer energy to the moving bed packed bed of particles to the at least one of the decomposition temperature or the reaction temperature.

A moving packed bed processing plant may include a reactor, a medium temperature heating section, and a superheating section. The reactor comprises a moving backed bed of particles where a decomposition and reaction section of the reactor is configured to provide heat transfer between particles of the moving packed bed of particles and the feed gas such that a reaction occurs that generates a gaseous product and a solid product. The medium temperature heating section is configured to heat particles to a first defined temperature, and the superheating section is configured to heat particles from the medium temperature heating section to a second defined temperature, and to provide the heated particles heated to the reactor, where the reactor utilizes the particles from the superheating section to transfer energy to the moving bed packed bed of particles to the at least one of the decomposition temperature or the reaction temperature.

A moving packed bed processing plant using medium temperature heating and superheating of process materials to produce gas and solid products is disclosed. In one form a system includes a reactor, a medium temperature heating section and a superheating section. The reactor includes a particle preheating section, a high temperature section, and a decomposition and reaction section with a moving packed bed of particles flowing through the sections of the reactor. The medium temperature heating section heats at least one of gases or particles to a first defined temperature. The superheating section heats the at least one of gases or particles received from the medium temperature heating section to a second defined temperature with an electrical system and provides the heated at least one gases or particles to the high temperature section of the reactor.

A moving packed bed processing plant using medium temperature heating and superheating of process materials to produce gas and solid products is disclosed. In one form a system includes a reactor, a medium temperature heating section and a superheating section. The reactor includes a particle preheating section, a high temperature section, and a decomposition and reaction section with a moving packed bed of particles flowing through the sections of the reactor. The medium temperature heating section heats at least one of gases or particles to a first defined temperature. The superheating section heats the at least one of gases or particles received from the medium temperature heating section to a second defined temperature with an electrical system and provides the heated at least one gases or particles to the high temperature section of the reactor.

A reactor for carrying out an endothermic reaction, in particular a high-temperature reaction, in which a product gas is obtained from a feed gas, wherein: the reactor surrounds a reactor interior; the reactor is configured to provide a reactor bed in a reaction zone of the reactor interior, which reactor bed comprises a large number of solid material particles; the reactor is also configured to guide the feed gas into the reaction zone; in order to heat the feed gas, the reactor is designed to heat the solid material particles in the reaction zone such that, by transferring heat from the solid material particles to the feed gas, the feed gas in the reaction zone can be heated to a reaction temperature in order to participate as a starting product in the endothermic reaction for producing the product gas.