A carbonaceous feedstock gasification power generation facility, and a method for regulating a gas for drying gas this carbonaceous feedstock, are disclosed with which it is possible to expand the range of the types of carbonaceous feedstocks that can be used. High-temperature exhaust gas, low-temperature exhaust gas and extreme high-temperature exhaust gas are bled from the furnace respectively at a high-temperature bleed position, a low-temperature bleed position and an extreme high-temperature bleed position. When these exhaust gases are mixed, the flow volume of the extreme high-temperature exhaust gas supplied to at least one of the exhaust gases, that is, the high-temperature exhaust gas or the low-temperature exhaust gas, is adjusted such that the temperature of at least one of these exhaust gases, that is, the high-temperature exhaust gas or the low-temperature exhaust gas, reaches a prescribed temperature.

Provided are a char feeding hopper that makes it possible to accurately measure char, a char recovery system, and a coal gasification combined power generation system. The char feeding hopper comprises: a char feeding hopper body that feeds separated char to a coal gasifier side; at least two casing tubes (121, 122) that are inserted from a side wall of the char feeding hopper body and that are provided so as to be aligned with one another in the vertical axis direction; a radiation source section (101) that is provided within the casing tube (121) and that emits -rays within the char feeding hopper body; and a -ray detector that is provided within the casing tube (122) and that detects emitted -rays. The cross-section of each casing tube (121, 122) has a shape that is provided with a tapered section (200) having an apex angle on the upper edge thereof.

A pulverized-fuel supply unit includes a hopper, first nozzles, second nozzles, a pressurizing-gas supply device, a fluidization-gas supply device, and a pulverized-fuel supply line. The hopper has a hollow to store therein pulverized fuel. The first nozzles are provided to the hopper. The second nozzles are provided to a vertically lower part of the hopper below the plurality of first nozzles. The pressurizing-gas supply device is configured to supply pressurizing gas to increase internal pressure of the hopper. The fluidization-gas supply device is configured to supply fluidization gas to fluidize the pulverized fuel in the hopper. The pulverized-fuel supply line is provided to a vertically lower part of the hopper. The pressurizing-gas supply device supplies pressurizing gas to the first nozzles and the second nozzles. The fluidization-gas supply device supplies fluidization gas to the second nozzles.

A method of conveying fuel, such as bulk material, into a gasification reactor that has a lateral infeed opening can be practiced with device for conveying fuels into a gasification reactor comprising a bulk material container,a conveying pipe, into which a discharge of the bulk material container opens and which can be connected to a lateral infeed opening of the gasification reactor, and a mechanical conveying apparatus disposed in the conveying pipe, the conveying apparatus is formed by a hydraulically drivable plunger, which is movably guided in a first, cylindrical section of the conveying pipe, and in that the conveying pipe has an internal cross-section which decreases continuously in the conveying direction of the fuel in order to form a compacting cone in a second axial section that is downstream of the first section, wherein the second section is configured as an exchangeable pipe portion with another exchangeable pipe portion.

A process for pressurizing bulk material in a hopper; wherein the hopper is configured as a lock hopper (29) containing a bulk material, a source of pressurized gas, lines (22, 26, 28) to convey the pressurized gas from the source to one or more inlets (30) of the lock hopper, a valve arranged in the lines, wherein the opening position of said valve (34, 35) is controlled to provide pressurizing gas to the lock hopper at a preset constant gas volume flow rate.

A method of and device for processing carbonacious material into gas and activated carbon together with blower.

A process for the gasification of a solid carbonaceous feed, the process comprising the steps of: introducing a batch of the solid carbonaceous feed into a sluice vessel, while an internal pressure in the sluice vessel is at a first pressure; introducing at least recycled CO2 into the sluice vessel via one or more gas inlets covered by the solid carbonaceous feed, to pressurize the sluice vessel from the first pressure to a second pressure exceeding the first pressure, during a predetermined time period; closing the one or more gas inlets; opening a feed outlet of the sluice vessel to supply the batch of the solid carbonaceous feed to a feed vessel for feeding the solid carbonaceous feed to a gasification reactor; closing the feed outlet; venting the sluice vessel to reduce the internal pressure to the first pressure; and repeating the process.

A method for producing syngas from preferably vegetal biomass is described. The method provides for the use of a fixed bed gasifier, equipped with two reactors. The biomass is fed to both reactors together with a primary flow rate of air. Advantageously, the method according to the present invention is different from the known art since a secondary flow rate of air is withdrawn from the first reactor at the area where the biomass dries, and fed to the second reactor at the area where the biomass dries, and vice versa, alternately during time. Alternatively, an oscillating air flow is created in each reactor. The achievable result is a greater syngas production, but not exclusively. The syngas quality is improved too, since the biomass has a longer time for completing the gasification reactions.

A system for pyrolysis or gasification having a first pyrolysis or gasification unit 50 connected to a second pyrolysis or gasification unit 53 by a hermetically sealed gas path. Pyrolysis is used to destroy calorific waste and/or to produce gas therefrom.

Provided herein are systems, methods and equipment that include Integrated Gasification Combined-Cycle technology to retrofit existing plants, that include, e.g., subsystems for separating char fines from syngas after it emerges from an internally-circulating fluidized bed carbonizer and injecting the char into the carbonizer draft tube as a fuel source. Efficiency and power generation are thus increased to the extent that inclusion of carbon capture systems are now possible for existing coal plants in order to significantly reduce carbon dioxide emissions.