摘要:
A system for gasification of a carbonaceous material and recycling char or solids from a gasifier is disclosed. The recycling system may include a standpipe that receives a solids stream from a separator, the standpipe generating a pressure differential across a bed of accumulated char, thereby producing a bottoms stream having a greater pressure than the inlet solids stream. The recycling system may also include a holding vessel that receives the bottoms stream and a fluidized-bed distribution vessel that receives char from the holding vessel and is configured to provide a continuous and precise flow of recycled char to the gasification reactor.
摘要:
이중 유동층 간접 가스화기가 제공된다. 상기 이중 유동층 간접 가스화기는 연료를 저장하는 연료 저장부 및 상기 연료 저장부로부터 연료를 이송시키는 스크류 피더를 포함하는 연료 공급부, 상기 연료 공급부를 통해 이송받은 연료를 이용해 가스화 반응을 수 행하는 가스화 반응부 및 상기 가스화 반응부의 반응에 필요한 열원을 제공하는 연소 반응부를 포함한다. 상기 이중 유동층 간접 가스화기는 순환 유동층반응기에 비하여 설치가 낮아 제작 비용을 절감할 수 있는 효과가 있으며, 기존 이중 유동층 가스화기에 비하여 형상이 단순하여 규격 제품을 통하여 제작을 할 수 있어 제작이 용이한 효과가 있고, 단일 유동층 가스화기에 비하여 기존 이중 유동층가스화기와 같은 높은 가스화 효율을 나타낼 수 있는 효과가 있다.
摘要:
A radiant heat chemical reactor is configured to generate chemical products including synthesis gas products. Two or more tubes in the radiant heat chemical reactor separate an exothermic heat source, such as flames and gas from a regenerative burner, from the endothermic reaction of the reactant gas occurring within the cavity of the refractory vessel. The exothermic heat source heats a space inside the tubes. One or more feed lines supply chemical reactants to the cavity area between an inner wall of the cavity of the refractory vessel of the chemical reactor and the two or more tubes that are internally heated located with the cavity.
摘要:
The invention relates to a method and a device for the entrained flow gasification of solid fuels under pressure characterised in that first and second oxygen-containing gasification means are supplied from above to a burnerless, dust-forming gasification material stream in at least two stages such that a first, upper gasification chamber and subsequent second, lower gasification chamber are formed. Through the addition of the first gasification means, measured according to quantity and composition, partial gasification of the gasification materials is performed, wherein temperatures in the first, upper gasification chamber, which are greater than 600°C, are adjusted. In addition, the carbon conversion of the first gasification products is limited to 80% based on the carbon input of the gasification materials. Through the addition of the second gasification means, measured according to quantity and composition, temperatures in the second gasification chamber are adjusted to a level that is high enough that largely complete gasification takes place and the desired compositions of the raw synthesis gases of the second gasification process are obtained. In the process, the discharge of ash in dry form and/or in the form of a melted slag is possible.
摘要:
A feed compactor outlet (2) comprising a passage wall defining a passage adapted to discharge material from a feed compactor to a reactor (12), wherein the passage wall comprises a moveable portion (4), the moveable portion (4) being moveable with respect to a longitudinal axis of the feed compactor outlet (2) to vary a throat area of the passage.
摘要:
A feed compactor outlet (2) comprising a passage wall defining a passage adapted to discharge material from a feed compactor to a reactor (12), wherein the passage wall comprises a moveable portion (4), the moveable portion (4) being moveable with respect to a longitudinal axis of the feed compactor outlet (2) to vary a throat area of the passage.
摘要:
An apparatus for producing combustible gases from biomass feeds comprising an outer cylindrical structure (101) being defined by a sidewall (102), a bottom supporting base (103) and a substantially tapered top (104); an inner cylindrical structure (105) being enclosed concentrically within the outer cylindrical structure and having a first opening at its top, a sidewall (106) and a base seated on the bottom supporting base (103) such that a gap between the sidewalls (102, 106) of the outer (101) and inner cylindrical structure (105) which forms an air passage connecting to an air chamber is defined within the inner cylindrical structure (105) through the first opening; wherein the air chamber is tapered towards a second opening (109) at the bottom of the inner cylindrical structure (105); a feed inlet (107) being installed adjacent to the bottom of the outer cylindrical structure (101) and connecting to the air passage; an air inlet pipe (121) being connected to the feed inlet (107); an outlet pipe (108) extending from the tapered top (104) and connecting to the upper portion of the air chamber within the inner cylindrical structure (105); and a waste collection assembly consisting of a rotary valve (114) and a waste chamber (115) connected to the second opening (109); wherein the air passage allows a cyclonic vortex of a mixture of air and the biomass feeds to swirl upwards inside the outer cylindrical structure (101) and downwards into the inner cylindrical structure (105) upon reaching the tapered top (104) of the outer cylindrical structure (101) to discharge ash through the second opening (109) into the waste chamber (115), resulting in the vortex to swirl upwards from the tapered bottom of the inner cylindrical structure (105), driving the produced combustible gases out of the inner cylindrical structure (105) through the outlet pipe (108).
摘要:
Eine Vorrichtung zur konstanten Zuführung von Stäuben unter Umgebungs- oder erhöhtem Druck weist in der die Wirbelschicht eines Dosiergefäßes mit einem Staubabnehmer verbindenden Staubförderleitung eine feste Drosseleinrichtung auf. Diese Drosseleinrichtung bewirkt einen Ausgleich und auch Dämpfung von Druckschwankungen wie sie in der Staubförderleitung, insbesondere bei Nachfüllvorgängen des Dosiergefäßes, auftreten. Besondere Ausgestaltungen betreffen eine weitere Vergleichmäßigung durch Hilfsgaseinspeisungen in die Staubförderleitung.
摘要:
A system for gasifying biomass materials is provided. The system includes a gasifying unit for converting the biomass materials into a gas and a feeder mechanism for introducing the biomass materials into the gasifying unit. The gasifying unit includes a plurality of gasifying medium and biomass injection ports distributed along a vertical length of the gasifying unit, and each of the plurality of injection ports has a corresponding injection angle. The injection angles include at least one of an upward tangential angle and a downward tangential angle.