Abstract:
The present invention relates to a device for generating a synthesis gas (SG) from biomass (BM) by entrained-flow gasification. The device comprises a treatment plant (1), in which the biomass (BM) is supplied to a coarse crushing device (2), which is connected downstream via a first lock (3) to a pressurized carbonization plant (4) for the hydrothermal generation of carbonization char (KK) from the biomass (BM). The carbonization plant (4) comprises at least one preheating device (5) and a carbonization reactor (6) arranged downstream of the preheating device (5) and is connected downstream via a second lock (11) to at least one solid-liquid separation device (12, 13) for providing a fuel. A drying device (16) for drying the fuel is provided downstream of the solid-liquid separation device (12, 13), with a crushing device (18) for crushing the fuel to form pulverized fuel (BS) having particle sizes in the range of 55 μm to 500 μm being connected downstream of the drying device. The device further comprises a transfer device (21) for transferring the fuel to an entrained-flow gasification plant (22), whereby a coupling of the treatment plant (1) to the entrained-flow gasification plant (22) is provided. The present invention further relates to a method for generating a synthesis gas (SG) from biomass (BM) by entrained-flow gasification using a device according to the invention.
Abstract:
The instant invention relates to a burner holding device for burners, which is arranged on an entrained flow gasification reactor, wherein the burners (4, 5) are held in the burner holding device (7) and extend through a flange (11), which fixes the burner holding device (7) to the entrained flow gasification reactor (8) and extend through the burner holding device (7) into the entrained flow gasification reactor (8). The cooling device encompasses at least two cooling circuits (1, 2), which are independent from one another, wherein exactly one cooling circuit (1, 2) is at least partially assigned to each burner (4, 5), so that each burner (4, 5) is surrounded by a section of the cooling device on an-end facing the front surface and wherein at least one cooling circuit (1, 2) is at least partially assigned to the front surface for cooling. Below the flange (11) within the burner holding device (7) from top to bottom,a layer (19) consisting of insulating casting compound, which is fire resistant up to at least 800° C. and comprises a heat conductivity in the range of from 0.02-0.8 W/m K,a layer consisting of loose material (17), which is fire resistant up to at least 800° C.,a layer (18) consisting of heat-conducting casting compound, which is fire resistant up to at least 1800° C. and comprises a heat conductivity of 3-15 W/m K furthermore surrounds the burners (4, 5).
Abstract translation:本发明涉及一种用于燃烧器的燃烧器保持装置,其布置在夹带流动气化反应器上,其中燃烧器(4,5)保持在燃烧器保持装置(7)中并延伸穿过凸缘(11),凸缘 将燃烧器保持装置(7)固定到夹带流化气化反应器(8)并延伸穿过燃烧器保持装置(7)进入夹带流化气化反应器(8)。 冷却装置包括彼此独立的至少两个冷却回路(1,2),其中恰好一个冷却回路(1,2)至少部分地分配给每个燃烧器(4,5),使得每个燃烧器 (4,5)在面向所述前表面的一端上由所述冷却装置的一部分包围,并且至少一个冷却回路(1,2)至少部分地分配给所述前表面用于冷却。 在燃烧器保持装置(7)内从顶部到底部的法兰(11)下面的由绝缘浇铸料构成的层(19),其耐火至少800℃,并且包括在该范围内的导热率 为0.02-0.8W / m K,由至少800℃的耐火性的松散材料(17)组成的层,由导热浇注料组成的层(18),其是耐火的 高达至少1800℃,并且包括3-15W / m K的导热性,并且还包围燃烧器(4,5)。
Abstract:
During required change-over to a holding operation in a Fischer-Tropsch synthesis, the reactor is not depressurized after cutting off the supply of fresh synthesis gas to the Fischer-Tropsch reactor, and the temperature is not reduced to below the temperature below which a Fischer-Tropsch reaction no longer takes place. Instead, the reactor is charged with an inert gas, e.g., kept in a vessel at a pressure higher than the operating pressure of the Fischer-Tropsch synthesis, until the reacting components have been flushed out from the Fischer-Tropsch system. While maintaining the pressure and the temperature, the reactor is thus merely inerted for a few seconds, sufficient to interrupt the Fischer-Tropsch reaction. Catalyst damage is avoided, and the liquid phase situation on the catalyst is at least essentially unchanged, facilitating subsequent re-commissioning of the catalyst.
Abstract:
The invention relates to a device and method for treating a hot gas flow containing slag and to an entrained-bed gasifier system that comprises the device. The device comprises, in a housing, an inlet arranged at the top for the hot gas flow, an immersion pipe, which is arranged vertically and concentrically in the housing and into which the inlet opens, a coolant bath, into which a lower section of the immersion pipe is immersed, and at least one raw gas outlet opening for cooled raw gas that has been freed of slag. The lower section of the immersion pipe is designed as a radially expanded gas distributor bell in the coolant bath. Said gas distributor bell is formed by a substantially conical jacket surface having a cross-section that expands downward, wherein the jacket surface has a plurality of gas passage openings, which are distributed over the circumference of the gas distributor bell. The dimensions of the gas passage openings increase with the immersion depth in the coolant bath.
Abstract:
The present invention relates to a metering device and a dense phase conveying system for the dosed supply of a light bulk material from a supply device (B, SG) via conveying tubes (FR1, FR2, FR3) to a consumer. For this purpose, an airlock (S) has a delivery device (AE/S) having a dust flow regulation device (F14), which opens into a metering container (DB), whose delivery device (AE/DB) comprises multiple dust flow regulation devices (FI1, FI2, FI3), which each open into one conveying tube (FR1, FR2, FR3). A pressure regulation device of the metering device is coupled for differential pressure regulations (PDC1-2, PDC3-R) to pressure measuring devices (PIS1, P12) of the airlock (S) and the metering container (DB) and to pressure measuring devices (PIR, P13) of the metering container delivery device (AE/DB) and the consumer, in order to control the metering container pressure (PI2) as a function of the second differential pressure regulation (PDC3-R). For a differential pressure control (PISA4-1) between supply device (B, SG) and airlock (S), the pressure regulation device is coupled to a pressure measuring device (PISA4) of the supply device (SG, B). The pressure regulation device controls the airlock pressure (PIS1) as a function of an airlock fill level (LIS/S) and the differential pressure control (PISA4-1) by actuating at least one suction device (V) connectable to the airlock (S). Furthermore, the present invention discloses a method using the dense phase conveying system having the metering device.
Abstract:
The present invention relates to a metering system for the steady, continuous, dosed supply of a bulk material in powder form made of light, polydisperse particles from a supply device (B, SG) into a plurality of conveying tubes (FR1, FR2, FR3) to a consumer arranged downstream. The metering system comprises at least two metering containers (DB1, DB2, DB3) each having a delivery device (AE2/1, AE2/2, AE2/3), the delivery device (AE2/1, AE2/2, AE2/3) for each of the conveying tubes (FR1, FR2, FR3) comprising a dust flow regulation device (FI1/1, FI2/1, FI3/2), which is assigned thereto and opens therein, and a mass flow measuring probe (FIC1, FIC2, FIC3) being arranged on each of the conveying tubes (FR1, FR2, FR3), which is coupled to the dust flow regulation device (FI1/1 to FI3/2) which opens into the corresponding conveying tube (FR1, FR2, FR3). Furthermore, the metering system has a pressure regulation device, which is coupled to the pressure measuring devices (PI1/1, PI1/2, PI1/3) arranged on the delivery devices (AE2/1, AE2/2, AE2/3), and which controls a metering container pressure (PIS2/1, PIS2/2, PIS2/3) at least as a function of a metering container fill level (LIS1, LIS2, LIS3). A pump device (V) can be coupled to each of the metering containers (DB1, DB2, DB3), which provides a pressure (PIS2/1, PIS2/2, PIS2/3) in the metering container (DB1, DB2, DB3), which is less than a pressure in the supply device (B, SG). Furthermore, the invention discloses a dense phase conveying system, which comprises the metering system and a method for the steady, continuous, dosed supply of a bulk material in powder form made of light, polydisperse particles.
Abstract:
The invention relates to a method for starting up a gasifying reactor comprising a plurality of burners. Each burner is thereby charged with combustible dust from a metering vessel (1) via a dense flow conveyor line (51, 52, 53, 54), which is assigned thereto, and with fuel gas via a gas conveyor line (62, 63), wherein a fuel mixture of combustible dust and combustible gas is provided prior to a moment of ignition of a burner, wherein a first composition of combustible dust and combustible gas, with which a first burner is charged for ignition, is regulated as a function of the fuel quantity, which was supplied to the second burner for ignition, after the ignition of a second burner, which is charged with a second composition of combustible dust and combustible gas for ignition, following the ignition of the first burner, so that the starting up of each of the plurality of burners of the gasifying reactor takes place under a regulated supply of the fuel load. The invention further relates to a gasifying reactor (7) for carrying out the method according to the invention.
Abstract:
The invention relates to a method for starting up a gasifying reactor comprising a plurality of burners. Each burner is thereby charged with combustible dust from a metering vessel (1) via a dense flow conveyor line (51, 52, 53, 54), which is assigned thereto, and with fuel gas via a gas conveyor line (62, 63), wherein a fuel mixture of combustible dust and combustible gas is provided prior to a moment of ignition of a burner, wherein a first composition of combustible dust and combustible gas, with which a first burner is charged for ignition, is regulated as a function of the fuel quantity, which was supplied to the second burner for ignition, after the ignition of a second burner, which is charged with a second composition of combustible dust and combustible gas for ignition, following the ignition of the first burner, so that the starting up of each of the plurality of burners of the gasifying reactor takes place under a regulated supply of the fuel load. The invention further relates to a gasifying reactor (7) for carrying out the method according to the invention.
Abstract:
The invention relates to a process and a device for the treatment of charged hot gas, in particular hot pressure gasification gases from fly stream gasifiers during the partial oxidation of dust-type and/or liquid ash-containing feed in the fly stream.
Abstract:
A process for the endothermic gasification of solid carbon in an entrained bed facility comprises partial oxidation of fuel(s) and endothermic gasification of solid carbon, preferably preceded by low temperature carbonization such that the carbonization gas is passed to the partial oxidation and the carbonization coke is passed to the endothermic gasification. The hot gas streaming downwardly from the combustion chamber is deflected to produce separation of the liquid slag and is then passed to the endothermic gasification that operates with a rising gas stream and with addition of solid carbon having a grain diameter of up to 20 mm. The speed of the gas at the carbon inlet is higher than, and the speed of the gas at the end of the endothermic gasification is lower than, the suspension rate of the reactive carbon particles, to produce an increase of the relative speed difference between the gas and the carbon particles. Apparatus is also disclosed for carrying out the process.