42results about How to "Efficient pyrolysis" patented technology

The invention discloses a fluidized bed hierarchical coal pyrolysis reactor. The fluidized bed hierarchical coal pyrolysis reactor comprises a pyrolysis chamber, a separating wall, a pyrolytic gas waste heat recovery device, a coal conveying device, a large granule outlet, a mixed material outlet and an ash conveying device, wherein the pyrolysis chamber comprises a low-temperature pyrolysis chamber and a high-temperature pyrolysis chamber. The invention further discloses a method for performing coal pyrolysis by using the device. By the method, the yield of gas is high, the yield of tar is low, high-efficiency and complete pyrolysis of coal is realized, the gas flow is less fluidized, and excellent fluidized heat exchange and conveying of coal, semicoke and circulating ash are realized, so that energy consumption and heat loss caused by fluidized gas are reduced. Low-temperature pyrolytic gas and high-temperature pyrolytic gas are mixed, so secondary pyrolysis of the lightweight tar of the low-temperature pyrolytic gas is realized, the yield of the pyrolytic gas is increased and the amount of the tar is reduced; and the temperature of the medium-temperature gas after mixing is reduced compared with the pyrolysis final temperature of the coal pyrolysis reactor, so the capacity and the flowing resistance of the pyrolytic gas waste heat recovery device can be reduced, the cost of equipment materials is reduced and the reliability of the equipment is improved.

A method and apparatus for waste tyres pyrolysis wherein whole tyres are directly heated in a tunnel type furnace with flue gases from the combustion of pyrolysis gases. The process produces thermal energy, carbon black and mineral oil. The cooled flue gases are purified from sulfur oxides before released into the atmosphere.

The invention discloses a rubbish transverse motion screening, fluidifying and pyrolyzing device. To overcome the defects that an existing rubbish pyrolyzing device is blocked easily and generates dioxin, and the maintenance and use expense is high, a screening mechanism is arranged below the side of a rubbish inlet, a gas phase pyrolyzing chamber is arranged above the screening mechanism, at least two solid phase pyrolyzing chambers are arranged below the screening mechanism, each solid phase pyrolyzing chamber is provided with inclined walls connected with each other, each solid phase pyrolyzing chamber is provided with a burnout chamber, a wind cavity and an ash channel, each wind cavity is communicated with the corresponding burnout chamber through a wind channel of an interlayer, each ash channel is communicated with the corresponding burnout chamber and penetrates the corresponding interlayer and the corresponding wind cavity, and the wind cavities are connected with a hot air conveying mechanism. The device is used for carrying out rubbish pyrolyzing treatment and can pyrolyze and screen rubbish at the same time, the rubbish can be classified, fluidified and pyrolyzed in separated chambers, pyrolysis blocking can be prevented, environment-friendly pyrolysis without generating dioxin can be achieved better, the construction investment and pyrolysis energy consumption can be reduced, and the operation and maintenance cost is low.

A system and method for performing pyrolysis comprises a reactor through which organic material is conveyed from an upstream end toward a downstream end and within which said pyrolysis will occur; a combustion chamber fluidically connected to the downstream end of the reactor; an output pipe fluidically connected to the downstream end of the reactor; a capsule surrounding a first part of the reactor and into an internal portion of which heated thermal fluids are disposed for heating the first part of said reactor; and a plurality of electrical resistors disposed around a second part of the reactor for heating the second part of the reactor; whereby, as a result of the pyrolysis occurring within the reactor, the syngas is conducted toward the combustion chamber while the carbonized material is conducted outwardly from the reactor through the output pipe.