Abstract:
A reactor having a moving layer for the removal of undesirable components for gases has an upright moving-adsorber chamber flanked by jalousie arrays of shutters laterally separating that chamber from a gas inlet chamber and a gas outlet chamber communicating through the jalousies with the adsorbent chamber. The gas inlet and gas outlet chambers, which extend over substantial portions of the height of the adsorbent chamber, are provided with the gas inlet and outlet respectively and are so oriented that the flow of gas through the adsorbent chamber is diagonal across the downward flow of the adsorbent supplied at the top of the adsorbent chamber and removed at the bottom thereof.
Abstract:
A method for treating a catalyst base that comprises a contact area of porous material. A fluid, such as a flue gas stream, can be conducted along the contact area. A catalytically relevant substance is introduced into pores of the catalyst base using a transport fluid and remains on pore wall areas after removal of the transport fluid. The introduction is carried out such that an amount of the catalytically relevant substance relative to the surface remains on the pore wall areas as a function of location within the pore and decreases within the pore after exceeding a specific pore depth. A blocking fluid can first be introduced into pore regions beyond the specific pore depth, thus blocking these regions when transport fluid containing the catalytically relevant substance is introduced.
Abstract:
A method for treating a catalyst base that comprises a contact area of porous material. A fluid, such as a flue gas stream, can be conducted along the contact area. A catalytically relevant substance is introduced into pores of the catalyst base using a transport fluid and remains on pore wall areas after removal of the transport fluid. The introduction is carried out such that an amount of the catalytically relevant substance relative to the surface remains on the pore wall areas as a function of location within the pore and decreases within the pore after exceeding a specific pore depth. A blocking fluid can first be introduced into pore regions beyond the specific pore depth, thus blocking these regions when transport fluid containing the catalytically relevant substance is introduced.
Abstract:
An arrangement for separating coarse ash out of a flue gas stream, comprising a catalytic converter disposed in a widened flue gas channel portion and serving for reducing the NOx level in the flue gas stream. Also disposed in the widened channel portion is a separator sieve that extends essentially over the entire cross-section thereof. The separator sieve is provided with a plurality of openings for the passage of flue gas therethrough. Each opening has a cross-section that is smaller than a cross-section of coarse ash particles that are to be separated out.
Abstract:
In a method of burning a nitrogen-containing fuel while reducing the emission of nitrogen oxides is provided, a sub-stoichiometric primary zone in the form of a flame core is produced and is supplied with a nitrogen oxide reducing agent that is a nitrogen compound or a hydrocarbon. Preferably, the flame core consists of a single zone and has a uniform air to fuel ratio.
Abstract:
A method for treating a catalyst base that comprises a contact area of porous material. A fluid, such as a flue gas stream, can be conducted along the contact area. A catalytically relevant substance is introduced into pores of the catalyst base using a transport fluid and remains on pore wall areas after removal of the transport fluid. The introduction is carried out such that an amount of the catalytically relevant substance relative to the surface remains on the pore wall areas as a function of location within the pore and decreases within the pore after exceeding a specific pore depth. A blocking fluid can first be introduced into pore regions beyond the specific pore depth, thus blocking these regions when transport fluid containing the catalytically relevant substance is introduced.
Abstract:
An arrangement for separating coarse ash out of a flue gas stream, comprising a catalytic converter disposed in a widened flue gas channel portion and serving for reducing the NOx level in the flue gas stream. Also disposed in the widened channel portion is a separator sieve that extends essentially over the entire cross-section thereof. The separator sieve is provided with a plurality of openings for the passage of flue gas therethrough. Each opening has a cross-section that is smaller than a cross-section of coarse ash particles that are to be separated out.
Abstract:
An arrangement for separating coarse ash particles from a flue gas stream is provided, and comprises at least one separation module that is in the form of a block and has a plurality of through channels disposed next to one another in the manner of a screen. The through channels form passages for the passage of flue gas, and each through channel has a cross-sectional area that is less than a cross-section of the coarse ash particles that are to be separated or removed. A side of the separation module that is adapted to receive a flow of the flue gas is made of a ceramic material or of a sintered material having a high mechanical resistance to wear. A holding device is provided for holding the separation module.
Abstract:
An adsorber for purifying flue gases of a furnace includes a housing having a flue gas inlet and a flue gas outlet. The housing has an adsorption medium chamber. A fill socket extends from the top of the housing. A removal device extends from the bottom of the housing. The chamber includes substantially vertical, gas-permeable walls for delimiting the chamber at the inlet side and at the outlet side. The chamber also includes a vertical gas-permeable partition and a slanted non-gas-permeable wall. The wall at the inlet side is a louver wall extending upwardly to the level of the fill socket. The wall at the outlet side is a slotted screen connected with the slanted, non-gas-permeable wall to the fill socket. The flue gas outlet is located opposite the non-gas-permeable wall.