CN205500795U - Turn into carbon dioxide carbon monoxide's reborner - Google Patents

Abstract

The utility model relates to a turn into carbon dioxide carbon monoxide's reborner, supreme be radiant section (1) and convection zone (2) under the internal follow of reborner, feed gas import (N1) and feed gas export (N2) are located convection zone (2), reforming gas import (N3) and reforming gas export (N4) are located radiant section (1), feed gas after CO2 mixes with H2 is followed feed gas import (N1) and is got into heating in convection zone (2), the heating finishes the back feed gas from getting rid of impurity during the purifying column is come out to get into in feed gas export (N2), the feed gas that the purifying column came out passes through reforming gas import (N3) and enters into the internal radiant section of reborner (1) heating consummatory response, reaction sequence institute calorific requirement is by the gaseous fuel nozzle of conversion furnace body bottom, reacted is gaseous to come out from reforming gas export (N4). The utility model discloses a waste gas CO2 reduces and prepares the CO cost as the equipment raw materials, reaches sustainable development requirements such as energy saving and emission reduction, comprehensive utilization.

Description

A kind of is the reburner of carbon monoxide by carbon dioxide conversion

Technical field

This utility model relates to a kind of reburner, and especially relating to a kind of is the reburner of carbon monoxide by carbon dioxide conversion.

Background technology

Along with the fast development of global economy, the CO that the mankind discharge in air₂Amount is also increasing severely, CO₂It is the predominant gas of " greenhouse effect ", is also the major reason causing global warming, the CO of China₂Discharge capacity is the hugest, CO₂As potential carbon resource, having the highest value, therefore needing to seek one can be by CO₂It is converted into other useful resources.

Summary of the invention

It is the reburner of carbon monoxide by carbon dioxide conversion that this utility model devises a kind of, it solves the technical problem that it is that carbon dioxide is as one of principal element causing global warming, the reduction of discharging of greenhouse gases or even reduce its concentration in an atmosphere, it has also become the significant challenge faced by various countries are common.

In order to solve the technical problem of above-mentioned existence, this utility model have employed below scheme:

A kind of is the reburner of carbon monoxide by carbon dioxide conversion, including converting body of heater and purifying column, it is characterized in that: from bottom to up for radiant section (1) and convection section (2) in reburner body, raw material gas inlet (N1) and unstripped gas outlet (N2) are positioned on convection section (2), convert gas import (N3) and conversion gas outlet (N4) is positioned at radiant section (1), CO₂With H₂Mixed unstripped gas enters convection section (2) from raw material gas inlet (N1) and heats, after heating, unstripped gas out enters purifying column from unstripped gas outlet (N2) and goes the removal of impurity, purifying column unstripped gas out is entered in the radiant section (1) in reburner body by conversion gas import (N3) and has heated reaction, and course of reaction institute calorific requirement is by the gaseous fuel burner converting bottom of furnace body；Reacted gas is from converting gas outlet (N4) out.

Further, convection section (2) upper end is connected with chimney (4) by reducer (3).

Further, described chimney (4) is provided with brokenly solar or lunar halo (5).

The reburner that carbon dioxide conversion is carbon monoxide is had the advantages that by this

(1) this utility model uses waste gas CO₂As equipment raw material, reduce and produce CO cost, reach the sustainable development requirement such as energy-saving and emission-reduction, comprehensive utilization.

(2) this utility model meets conversion reaction top response speed soon, and recept the caloric big requirement, the requirement that radiant section efficiency is high.

Accompanying drawing explanation

Fig. 1 is this utility model by the reburner structural representation that carbon dioxide conversion is carbon monoxide.

Description of reference numerals:

1 radiant section；2 convection sections；3 reducers；4 chimneys；5 break solar or lunar halo；N1 raw material gas inlet；N2 unstripped gas exports；N3 converts gas import；N4 converts gas outlet.

Detailed description of the invention

Below in conjunction with Fig. 1, this utility model is described further:

This utility model reburner is one can be by CO₂By conversion reaction, generating the conversion reaction stove of CO, the CO generated after reaction can be used for producing other chemical products as a kind of important industrial chemicals again.

Equipment uses carbon dioxide (CO₂) and hydrogen (H₂) send into reburner convection section in the mixing of 1:1 ratio, by the high temperature about gas heating to 700 DEG C, under catalyst action, reaction generates CO and H₂O.Again by CO purification to the purity needed.

As it is shown in figure 1, this utility model reburner N1 is raw material gas inlet, N2 is unstripped gas outlet, and N3 is for converting gas import, and N4 is for converting gas outlet.

Raw material CO₂In be proportionally added into H₂Enter from raw material gas inlet N1 after mix homogeneously, after the convection section 2 of stove is heated to about 350 DEG C, out enter purifying column from unstripped gas outlet N2, the objectionable impurities in gas is removed, then enter from converting gas import N3, it is heated to about 700 DEG C through the radiant section 1 of stove, under special-purpose catalyst catalytic action in boiler tube, there is complicated conversion reaction, CO₂And H₂Produce the equilibrium mixture of a small amount of methane, carbon monoxide and water.Reacted conversion gas enters other refrigerating work procedure and purification process the most afterwards from converting gas outlet N4.

Whole furnace entrance temperature about 350 DEG C, outlet temperature about 700 DEG C, inlet pressure normal pressure, outlet pressure is also normal pressure.

1, reburner structure choice；

Reburner is the nucleus equipment of gas maker, reburner version mainly has: tipburn stove, sidefired furnace, stepped furnace and bottom fired heater etc., but the type of furnace being widely used at present only has the end to burn and side burns two kinds, it selects to depend primarily on following factors: reburner size, application scenario and fuel type.

The size of reburner is highly important.It is, in general, that bigger reburner should not use sidefired furnace, radiation chamber too much and usually must be divided into because of its burner two (or more) burner hearths.Tipburn stove is few because of its burner, compact conformation, then be more suited to large-scale reburner.

In terms of the adaptability of fuel type, sidefired furnace is confined to the Petroleum after using fuel gas and vaporization and liquefied petroleum gas；And bottom fired heater is numerous because of its burner pattern, it is possible to use various gases and liquid fuel.

According to above-mentioned analysis, this utility model is by many Integrated comparative such as production scale, fuel type, catalyst performance requirement, heat and construction and installation, maintenance, steel alloy consumptions, and consider and reduce investment outlay, produce the safe factor such as reliably, select the type of furnace to be: Bottom Nozzle Used heat supply.

2, the selection of reformer tube；

Reformer tube works at high temperature under high pressure, thus harsher to material requirements.At present, the domestic centrifugal pouring pipe having introduced HP, HK series, under the same conditions, HP series boiler tube is compared with HK series boiler tube, has use temperature high, the feature that allowable stress is big, and therefore, this stove uses HP series boiler tube.

This utility model reburner is based on CO₂CO thermodynamic data processed and this partial catalyst performance are designed.At CO₂Gas allocates hydrogen H in 1:1 ratio₂, mixing raw material inverted stove convection section 2 is preheated to～350 DEG C, enters reburner radiant section 1.Under the effect of catalyst, there is complicated conversion reaction, thus produce the equilibrium mixture of methane, carbon monoxide, carbon dioxide and water.Reaction equation is as follows:

CO₂+H₂=CO+H₂O。

Course of reaction institute calorific requirement is provided by the gaseous fuel burner bottom reburner, goes out reburner～700 DEG C of pyrolytic conversion gas after waste heat recovery, and temperature is down to 360 DEG C, enters after cooling segment is cooled to room temperature and is products C O mixture.

Above in conjunction with accompanying drawing, this utility model is carried out exemplary description; obvious realization of the present utility model is not subject to the restrictions described above; as long as have employed the various improvement that method of the present utility model design is carried out with technical scheme; or the most improved design of the present utility model and technical scheme are directly applied to other occasion, all in protection domain of the present utility model.

Claims (3)

1. carbon dioxide conversion is the reburner of carbon monoxide by one kind, including converting body of heater and purifying column, it is characterized in that: from bottom to up for radiant section (1) and convection section (2) in reburner body, raw material gas inlet (N1) and unstripped gas outlet (N2) are positioned on convection section (2), convert gas import (N3) and conversion gas outlet (N4) is positioned at radiant section (1), CO₂With H₂Mixed unstripped gas enters convection section (2) from raw material gas inlet (N1) and heats, after heating, unstripped gas out enters purifying column from unstripped gas outlet (N2) and goes the removal of impurity, purifying column unstripped gas out is entered in the radiant section (1) in reburner body by conversion gas import (N3) and has heated reaction, and course of reaction institute calorific requirement is by the gaseous fuel burner converting bottom of furnace body；Reacted gas is from converting gas outlet (N4) out.

It is the reburner of carbon monoxide by carbon dioxide conversion the most according to claim 1, it is characterised in that: convection section (2) upper end is connected with chimney (4) by reducer (3).

It is the reburner of carbon monoxide by carbon dioxide conversion the most according to claim 2, it is characterised in that: described chimney (4) is provided with brokenly solar or lunar halo (5).