CN201825927U

CN201825927U - Condenser for separating biomass cracking gas

Info

Publication number: CN201825927U
Application number: CN2010202207583U
Authority: CN
Inventors: 肖进彬; 王郑建; 马新荣; 崔志琦
Original assignee: Henan Provincial High-New Tech Commercial And Industrial General Co
Current assignee: Henan Provincial High-New Tech Commercial And Industrial General Co
Priority date: 2010-06-10
Filing date: 2010-06-10
Publication date: 2011-05-11
Anticipated expiration: 2020-06-10

Abstract

The utility model relates to a condenser for separating biomass cracking gas. The technical scheme is as follows: high-temperature cracking gas generated after the cracking of biomass in a cracking furnace is sequentially communicated with a settling chamber and an inertial dust separator by a pipeline through an outlet on a cracking reactor, an outlet of the dust separator is connected with a gas inlet at the upper part of the condenser, a liquid spray inlet is arranged at the upper part of the condenser, an outlet is arranged at the lower part and connected with an inlet at one end of a liquid storage tank; two liquid outlets and one exhaust opening are arranged at the lower part of the liquid storage tank, and a gas outlet is arranged at the upper part and connected with the condenser; and the condenser is provided with a condensed water inlet, a condensed water outlet, a gas inlet and a gas outlet, and the gas outlet is connected with a gas cabinet through pipeline equipment. One liquid outlet of the liquid storage tank is connected with the upper part of the condenser through a pump, the other outlet is connected with a fractionator through a pipeline, and a tar outlet is arranged at the lower part of the fractionator. The condenser for separating the biomass cracking gas can effectively solve the problems of dust separation, tar generation, and the like in a cracking process, and has simple, energy-saving and economical process.

Description

A kind of biomass cracking gases separating and condensing device

Technical field

The utility model relates to the cracker in agriculture processor field, particularly a kind of biomass.

Background technology

Agricultural-forestry biomass (agricultural stalk, shell, forestry waste) is a renewable energy source, after the processing by various physico-chemical processes, can be converted into the required various Chemicals of solid, liquids and gases energy product and human lives.But present various biomass cracking is mainly paid attention to scission reaction reactor and correlation technique, few for the separating treatment technical study that comes biomass cracking gases, for the collection of splitting gas, separate that many employings directly are condensed to room temperature or cryogenic unit is cooled to subzero 70 degree, and then further separate, these technique devices are available in laboratory theoretical investigation process, but can not adapt to the requirement that engineering is used, economy is also relatively poor.The patent of patent ZL 200820149310.X has been described a kind of processing unit (plant) of biomass, the main emphasis of this device utilizes method dedustings such as sedimentation, cyclonic separation, silk screen filter, after again the tar wood vinegar is separated, but in the engineering application process effect and bad.Because the restriction of the separating and condensing device of tar is restricted the cracking technique application of agricultural-forestry biomass, therefore need the separating and condensing device of the novel biomass cracking gases of design.

Summary of the invention

At above-mentioned situation, overcome the prior art defective, the purpose of the utility model is to provide a kind of separating and condensing device of biomass cracking gases, can solve the splitting gas dedusting difficulty that exists in the biological pledge cracking process, tar separation difficulty, less economical problem effectively.The technical scheme of its solution is, the Pintsch process gas that biomass produce after the cracking in pyrolyzer, splitting gas outlet on cracking reactor, be communicated with settling pocket and inertial dust separator successively through pipeline, settling pocket and inertial dust separator have pneumatic outlet, ash output hole is arranged at the bottom, the inertial dust separator pneumatic outlet links to each other with Quench condenser upper gas inlet, the liquid entrance is arranged at Quench condenser top, the bottom has outlet to link to each other with wet tank one end entrance, two liquid exits and a drain are arranged at the wet tank bottom, top has a pneumatic outlet to link to each other with condenser in addition, have water of condensation to import and export and gas inlet and outlet on the condenser, pneumatic outlet links to each other by pipe-line equipment with gas holder.A liquid exit of wet tank links to each other with the upper liquid inlet of Quench condenser by pump, and another liquid exit links to each other with fractionator by pipe-line equipment, and the tar outlet is arranged at the fractionator bottom, and the wood vinegar outlet is arranged at top.

Beneficial effect of the present invention

This is novel in the separating and condensing process of biomass cracking gases, coordinates to have used Quench condensation, condensation and fractionation plant, and be simple, energy-conservation, the economic biomass cracking gases separating and condensing device of a kind of technology.

Description of drawings

Accompanying drawing is a structural representation of the present utility model.

Among the figure: 1, pyrolyzer; 2, settling pocket; 3, inertial dust separator; 4, Quench condenser; 5, wet tank; 6, recycle pump; 7, condenser; 8, fractionator; 9, pneumatic outlet; 10, ash output hole; 11, ash output hole; 12, drain; 13, wood vinegar outlet; 14, tar outlet.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.

From accompanying drawing as can be seen, the outlet of stalk pyrolyzer 1 links to each other with equipment settling pocket 2 through pipeline, ash output hole 10 is arranged at the settling pocket bottom, pneumatic outlet is arranged at top, pneumatic outlet links to each other with inertial dust separator 3, ash output hole 11 is arranged at the inertial dust separator bottom, and the outlet of inertial dust separator upper gas links to each other with Quench condenser 4 by pipeline.Quench condenser 4 lower part outlets link to each other with wet tank 5, drain 12 is arranged at the wet tank bottom, there is a liquid exit to link to each other with Quench condenser 4 with pipeline by recycle pump 6, another liquid exit of wet tank 5 links to each other with fractionator 8, wood vinegar outlet 13 and tar outlet 14 are arranged on the fractionator 8, there is pneumatic outlet to link to each other with condenser 7 on the wet tank 5, water of condensation import and export and gas feed arranged on the condenser 7 and export 9 by pipeline.

Be to guarantee practical function, said pyrolyzer 1 be by metallic substance or stupalith, refractory materials is made, and can be that fixed bed, moving-bed or fluidized bed cracking stove can use by single stove, also can many stoves are in parallel use; Said settling pocket 2 is meant circle or the square container with certain volume, adopts metallic substance to make; Inertial dust separator 3 is meant that cyclonic separator, venetian blind type inertial dust separator etc. utilize the dust separating dust removal installation of object principle of inertia; Quench condenser 4 is meant and utilizes the direct condenser that directly contacts with gas of liquid, comprises washing tower, water bath, Venturi meter etc., can one or more parallel connections use; Wet tank 5 is for having the container of certain volume; Recycle pump 6 can be liquid delivery pumps such as impeller pump, toothed gear pump, rotor pump; Condenser 7 is air-cooled or water-cooled condenser; Fractionator 8 is still distillation device, board-like separation column, filler separation column.

This novel working order is, biomass are behind pyrolyzer 1 heating pyrolyze, Pintsch process gas (more than the 300 ℃) flow that produces is 100 kilograms/hour～5 tons/hour, splitting gas is through settling pocket 2, after inertial dust separator 3 dedustings, temperature still remains on more than 300 ℃, and Pintsch process gas enters in Quench condenser 4 and the Quench condenser 4 90 ℃～100 ℃ current and contacts, splitting gas is condensed to 90 ℃～100 ℃ rapidly, is divided into gas, liquid two-phase.Main containing water vapor of gas phase part and combustion gas component, after gas phase was partly passed through wet tank 5, by condenser 7 condensations, isolated moisture was back to wet tank 5, and gas holder 9 is sent in combustion gas.Condensed liquid ingredient mainly is the mixture of wood tar oil and wood vinegar, temperature is 90 ℃～100 ℃, be stored in the wet tank 5, a liquid part through recycle pump 6 be delivered to Quench condenser 4 as Pintsch process air cooling coagulate medium, a part enters fractionator 8, obtains tar and wood vinegar after fractionation.The utility model is in the separating and condensing process of biomass cracking gases, Quench condensation, condensation and fractionation plant have been used in coordination, it is simple, energy-conservation, the economic biomass cracking gases separating and condensing device of a kind of technology, be the innovation that the biomass energy makeup is equipped with the field, have good economic and social benefit.

Claims

1. biomass cracking gases separating and condensing device; It is characterized in that: stalk pyrolyzer equipment (1) links to each other through pipe-line equipment settling pocket (2) through the splitting gas outlet, ash output hole (10) is arranged at the settling pocket bottom, pneumatic outlet is arranged at top, pneumatic outlet links to each other with inertial dust separator (3), ash output hole (11) is arranged at the inertial dust separator bottom, the outlet of inertial dust separator upper gas links to each other with Quench condenser (4) by pipeline, the outlet of Quench condenser links to each other with wet tank (5), drain (12) is arranged at the wet tank bottom, there is a liquid exit to link to each other with Quench condenser (4) with pipeline by pump, another liquid exit links to each other with fractionator (8), wood vinegar outlet (13) and tar outlet (14) is arranged on the fractionator, there is pneumatic outlet to link to each other with condenser (7) on the wet tank (5), water of condensation import and export and gas feed and outlet (9) are arranged on the condenser by pipeline.

2. a kind of biomass cracking gases separating and condensing device according to claim 1; It is characterized in that: said cracking reactor (2) is to be made by metallic substance or stupalith, refractory materials, cracking temperature is 300 ℃～900 ℃, can be fixed bed, moving-bed or fluidized bed cracking stove, can use by single stove, also can the use in parallel of many stoves.

3. a kind of biomass cracking gases separating and condensing device according to claim 1; It is characterized in that: said inertial dust separator is meant cyclonic separator, venetian blind type inertial dust separator.

4. a kind of biomass cracking gases separating and condensing device according to claim 1; It is characterized in that: said Quench condenser is meant and utilizes the direct condenser that directly contacts with gas of liquid, comprises washing tower, water bath, Venturi meter, can one or more in parallel uses.

5. a kind of biomass cracking gases separating and condensing device according to claim 1; It is characterized in that: said fractionator is still distillation device, packing tower or tray column.

6. a kind of biomass cracking gases separating and condensing device according to claim 1; It is characterized in that: said condenser is air-cooled or water-cooled condenser.

7. a kind of biomass cracking gases separating and condensing device according to claim 1; It is characterized in that: said Quench condenser, wet tank, condenser need insulation.

8. a kind of biomass cracking gases separating and condensing device according to claim 1; It is characterized in that: said Quench condenser, wet tank, condenser can be that the equipment of three splits passes through pipe connection, also can be designed to an integral body, Quench condenser, wet tank, condenser are directly installed on the wet tank by flange or welding.