This disclosure relates to aggregating, neutralizing, and filtering ultra-fine particles in fluids such as air and water. Fluid may be drawn from an ambient environment into a neutralization chamber. Within the neutralization chamber, particles in the fluid may be agglomerated. An acoustic field may be applied to the fluid to agglomerate the particles. The agglomerated particles may be exposed to light. The light may denature or deactivate the agglomerated particles. The agglomerated and inert particles maybe passed through a filter. After agglomeration and neutralization, the fluid may be released back into the ambient environment.

The invention belongs to processes of converting carbonaceous raw materials to produce gaseous, solid, and liquid energy carriers and can be used in municipal, agriculture, wood processing industry, in the mining and petrochemical industries and other industries for thermochemical conversion of carbon-containing wastes from these industries to produce combustible gas, solid and liquid fuels, sorbents and other products. The process provides for the use of a vortex gasifier to produce hot generator gas, used as a heat carrier for the process of pyrolysis of raw material in the reactor, in which char and vapor gas are produced as a result of thermochemical reaction, a purification device to treat produced in the reactor vapor gas, and an apparatus for separation of vapor gas into different components. During the operation of the pyrolysis reactor, hot generator gas is fed into the upper part of the reactor and then proceeds to the bottom of the reactor through a gas duct inside the pyrolysis reactor until it reaches the distributor, through which it exits and travels up to the exit of the reactor, with simultaneous feed of raw material into the upper part of the reactor and movement of raw materials down the sloping mesh shelves. Effective thermochemical conversion of raw material is achieved in the countercurrent of raw material and heat carrier. The vapor gas formed in the pyrolysis reactor is supplied to the purification and separation units, while the char descends into the hopper from which it is released by a screw conveyor and/or sluice feeder to be sent to consumers or to the gasifier to obtain the heat carrier.

An exhaust gas purification device, including a diesel particulate filter (DPF) for collecting particulate matter contained in an exhaust gas, a forced regeneration unit or performing forced regeneration, a capacitance detection unit for detecting a capacitance of the DPF, a total accumulated amount estimation unit for estimating a total amount of accumulated particulate matter and ash collected in the DPF on the basis of the detected capacitance, and an ash accumulated amount calculation unit for calculating an amount of accumulated ash by using, as the amount of accumulated ash, the total amount of accumulation which is estimated when the forced regeneration finishes.

An apparatus (1) for thermal denitration of a uranyl nitrate hydrate to uranium trioxide UO3. The apparatus (1) comprises a burner (114) and a reaction chamber (110) configured to carry out thermal denitration of uranyl nitrate hydrate and to form uranium trioxide UO3 in the form of particles. The apparatus also comprises a separating chamber (120) suitable for separating UO3 particles from the gases resulting from the thermal denitration carried out in the reaction chamber (110), and at least one filter (130) configured for purifying the gases. The separating chamber (120) is a decanting chamber into which the reaction chamber (110) directly opens out. The filter (130) is capable of performing the separation at a temperature greater than or equal to 350 C. The invention also relates to use of such an apparatus, to a thermal denitration process and to UO3 particles obtained by such a process.

An electrostatic air precipitator for emission remediation including, a grounded frame connected to a housing having an upstream direction and a downstream direction with a first ionizing section, having at least a first set of ionizing members and a second set of ionizing members, where the ionizing members of the first set and the second set are electrically isolated from each other and electrically isolated from the grounded frame. Also, the ionizing members of the first set and the ionizing members of the second set are powered by separate power supplies and at least a first collector section is located downstream of the first ionizing section, and the first collector section has at least a first plurality of collector plates.

An electrostatic air precipitator for emission remediation including, a grounded frame connected to a housing having an upstream direction and a downstream direction with a first ionizing section, having at least a first set of ionizing members and a second set of ionizing members, where the ionizing members of the first set and the second set are electrically isolated from each other and electrically isolated from the grounded frame. Also, the ionizing members of the first set and the ionizing members of the second set are powered by separate power supplies and at least a first collector section is located downstream of the first ionizing section, and the first collector section has at least a first plurality of collector plates.

An eductor, a process and apparatus for gas phase polymerization of olefins in a polymerization reactor are disclosed. The process and apparatus employ an eductor which has an inlet which makes a bend of less than about 90 toward the outlet after entering the mixing chamber of the eductor.

An eductor, a process and apparatus for gas phase polymerization of olefins in a polymerization reactor are disclosed. The process and apparatus employ an eductor which has an inlet which makes a bend of less than about 90 toward the outlet after entering the mixing chamber of the eductor.

This invention relates to a method of increasing the size of particulates in a gas comprising particulates, e.g. a gas that is formed from the combustion of fuels. The method comprises mixing an ionised gas stream with the gas comprising particulates.

This invention relates to a method of increasing the size of particulates in a gas comprising particulates, e.g. a gas that is formed from the combustion of fuels. The method comprises mixing an ionised gas stream with the gas comprising particulates.