Process and apparatus for separating liquid ash
AssigneeMetallgesellschaft Aktiengesellschaft
InventorEkkehard Weber
Life of this patent
Estimating the term…
Abstract
Disclosed are a process and apparatus for separating liquid ash from an exhaust gas which is formed by the combustion of carbonaceous fuels. The exhaust gas is at a temperature of from 1200.degree. to 1800.degree. C. and under a pressure from 1 to 100 bars and has an ash content, consisting of liquid particles, of 0.1 to 60 g/sm.sup.3. In the process, the ash-containing exhaust gas leaving the combustion chamber is directed to a housing in which there is at least one baffle surface oriented substantially transversely to the direction of flow of the exhaust gas which may be preceded by a centrifugal separator and/or succeeded by a ceramic filter element.
Claims19
A process for separating liquid ash from an exhaust gas which is formed by combustion of a carbonaceous fuel comprising:
- introducing the liquid ash containing exhaust gas stress at a temperature of from 1200.degree. to 1800.degree. C. into a housing means;
- directing the liquid ash containing exhaust gas in the housing means onto at least one baffle surface whereby liquid ash is removed from the exhaust gas, said baffle surface being oriented substantially transversely to the direction of flow of the liquid ash containing gas;
- and
- exhausting the gas from the housing means.
An apparatus for separately liquid ash from an exhaust gas which is formed by combustion of a carbonaceous fuel comprising:
- a cyclone having inlet means for introducing the exhaust gas into said cyclone and outlet means through which gas leaves said cyclone, said outlet means comprising a dip pipe housed in said cyclone;
- at least one baffle surface in said dip pipe, said baffle surface being disposed at an angle of about 90.degree. with respect to the direction of flow of the exhaust gas;
- and means for removing the liquid ash from the cyclone.
A system for separating liquid ash from an exhaust gas formed by combustion of carbonaceous fuel comprising:
- separation means into which the exhaust gas is introduced to produce a first treated gas;
- cyclone means having an inlet through which the first treated gas enters and outlet means comprising a dip pipe housed within said cyclone means, said dip pipe having baffle means with a surface onto which the first treated gas is directed, said baffle means being disposed substantially transversely to the direction of flow of the first treated gas.
Dependencies are inferred from the claim text.