CN114405427A - Low-energy-consumption cracking device and method for preparing acetylene from natural gas - Google Patents
Low-energy-consumption cracking device and method for preparing acetylene from natural gas Download PDFInfo
- Publication number
- CN114405427A CN114405427A CN202210029361.3A CN202210029361A CN114405427A CN 114405427 A CN114405427 A CN 114405427A CN 202210029361 A CN202210029361 A CN 202210029361A CN 114405427 A CN114405427 A CN 114405427A
- Authority
- CN
- China
- Prior art keywords
- quenching
- chamber
- gas
- nozzle
- natural gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 177
- 239000003345 natural gas Substances 0.000 title claims abstract description 83
- 238000005336 cracking Methods 0.000 title claims abstract description 52
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000005265 energy consumption Methods 0.000 title claims abstract description 44
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 189
- 238000010791 quenching Methods 0.000 claims abstract description 185
- 230000000171 quenching effect Effects 0.000 claims abstract description 175
- 238000006243 chemical reaction Methods 0.000 claims abstract description 118
- 239000007788 liquid Substances 0.000 claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000000197 pyrolysis Methods 0.000 claims description 97
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 38
- 229910052760 oxygen Inorganic materials 0.000 claims description 38
- 239000001301 oxygen Substances 0.000 claims description 38
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000012267 brine Substances 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 2
- 238000011143 downstream manufacturing Methods 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000003209 petroleum derivative Substances 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 239000006229 carbon black Substances 0.000 description 8
- 238000005496 tempering Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000036632 reaction speed Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000007353 oxidative pyrolysis Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XURIQWBLYMJSLS-UHFFFAOYSA-N 1,4,7,10-tetrazacyclododecan-2-one Chemical compound O=C1CNCCNCCNCCN1 XURIQWBLYMJSLS-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/76—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen
- C07C2/82—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen oxidative coupling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a cracking device and a method for preparing acetylene from natural gas with low energy consumption, which relate to the field of petroleum and natural gas and solve the problems of low temperature and high energy consumption of the cracked gas after quenching in the prior art, and comprise a mixing chamber and a reaction chamber communicated with the bottom of the mixing chamber, wherein an air inlet pipeline communicated with the outside and the reaction chamber is arranged in the mixing chamber, a gas flow rate controller is arranged in the air inlet pipeline communicated with the reaction chamber, a quenching chamber is sleeved below the middle upper part of the reaction chamber, the side wall of the lower part of the reaction chamber is provided with at least one quenching nozzle communicated with the quenching chamber, one side of the top of the quenching chamber is provided with an exhaust nozzle, the middle upper part of one side of the quenching chamber is provided with a liquid injection port, the bottom of one side of the quenching chamber is provided with a water discharge port, the quenching liquid is added through the liquid injection port or discharged from the water discharge port, the cracked gas is discharged through the exhaust nozzle, and the quenching with adjustable temperature of the cracked gas is realized, the excessive temperature reduction of the cracked gas is avoided, the discharged cracked gas can be conveyed to a downstream process for further utilizing the heat energy of the cracked gas, and the energy consumption is low.
Description
Technical Field
The invention relates to the field of natural gas chemical industry, in particular to the technical field of cracking process equipment for preparing acetylene from natural gas.
Background
The mainstream process method for preparing acetylene from natural gas is a partial oxidation method, which is a method for generating acetylene by combusting a part of raw material natural gas with oxygen to provide a large amount of heat for cracking another part of natural gas. Currently known to the art are BASF, germany and ukraine, national institute of chemical engineering and design, llc.
The cracking equipment of the Ukrainian national institute of chemical engineering design, LLC is in the form of a rotary flame furnace comprising: mixing chamber, reaction chamber, quenching chamber. The quenching chamber is respectively provided with four layers of nozzles for cold circulating water at different heights, a large amount of water is evaporated, the pyrolysis gas can be rapidly cooled, the reaction is stopped, and the temperature of outlet water is controlled at 80 ℃. The cracking plant from BASF, germany, is of the multi-tube furnace type and comprises: mixing chamber, reaction chamber, quenching chamber. Wherein, the quenching chamber adopts a water nozzle spray or oil nozzle spray mode to ensure the rapid cooling of the pyrolysis gas, the reaction is terminated, and the effluent temperature is controlled at 300 ℃.
The above devices all adopt a water spraying mode to quench the pyrolysis gas, and directly quench the pyrolysis gas to a lower temperature, so that the temperature of the pyrolysis gas is too low, the quenching temperature of the pyrolysis gas cannot be adjusted timely, the heat energy of the pyrolysis gas is wasted, and the energy consumption is higher.
Disclosure of Invention
The invention aims to: the invention provides a cracking device and method for preparing acetylene from natural gas with low energy consumption, and aims to solve the problems that the quenching temperature of cracked gas is too low, the quenching temperature of the cracked gas cannot be adjusted, and the energy consumption is high after quenching in the prior art. The invention specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a low energy consumption's pyrolysis device of natural gas system acetylene, includes mixing chamber, with the reaction chamber of mixing chamber bottom intercommunication, be provided with in the mixing chamber with the external world with the inlet line of reaction chamber intercommunication, with the reaction chamber intercommunication be provided with gas flow rate controller in the inlet line, the cover below the upper portion is equipped with the quenching room in the reaction chamber, and reaction chamber lower part lateral wall is provided with at least one quenching mouthpiece that communicates with the quenching room, and quenching room top one side is provided with the exhaust mouthpiece, and the upper portion in quenching room one side is equipped with annotates the liquid mouth, and one side bottom of quenching room is equipped with the outlet. (quench nozzle is configured as a nozzle with a magnetically-activated switch, in a conventional arrangement known in the art, and a gas flow rate controller is in a conventional arrangement known in the art.)
The working and using process is as follows: when the device is used, natural gas and oxygen are introduced into the mixing chamber through the gas inlet pipeline to be mixed to obtain mixed gas, the gas flow rate controller adjusts the flow rate of the mixed gas to 29-40m/s and introduces the mixed gas into the reaction chamber to react, after the reaction is finished, quenching liquid is added into the quenching chamber through the liquid injection port, after the liquid level of the quenching liquid in the quenching chamber does not pass through the quenching nozzle, pyrolysis gas (most of acetylene, carbon monoxide, carbon dioxide and other impurity gases) in the reaction chamber is introduced into the quenching chamber through the quenching nozzle, the pyrolysis gas is discharged after being cooled by the quenching liquid, and the pyrolysis gas is discharged out of the device through the exhaust nozzle, so that the temperature reduction of the pyrolysis gas is realized; (pyrolysis gas enters subsequent processes of impurity removal, concentration and the like after being discharged from an exhaust nozzle.) when the water outlet temperature of the pyrolysis gas needs to be increased, partial quenching liquid is discharged from a water discharging port, and when the water outlet temperature of the pyrolysis gas needs to be reduced, the quenching liquid is added through a liquid injection port, so that the liquid level of the quenching liquid is increased; the gas flow rate controller is arranged in the gas inlet pipeline, so that the mixed gas is accelerated, the flow rate in the reaction chamber is high and is consistent with the flame propagation speed in the reaction chamber, the flame is kept stable in the center of the reaction chamber, and the tempering is avoided; the quenching liquid is added through the liquid injection port or is discharged from the water discharge port, and the pyrolysis gas is discharged through the gas discharge nozzle, so that the pyrolysis gas can be quenched at an adjustable temperature, the pyrolysis gas is prevented from being excessively cooled, the discharged pyrolysis gas can be conveyed to a downstream process to further utilize the heat energy of the pyrolysis gas, and the energy consumption is low; the device solves the problems that the prior device adopts a cold water spraying mode to quench the pyrolysis gas in the quenching stage, directly quenches the pyrolysis gas to a lower temperature, the temperature of the pyrolysis gas is too low, the quenching temperature of the pyrolysis gas can not be adjusted in time, the heat energy of the pyrolysis gas is wasted, and the energy consumption is higher.
Furthermore, the air inlet pipeline comprises a plurality of mixing pipelines positioned in the mixing chamber, a first nozzle connected to the upper part of each mixing pipeline, a second nozzle connected to one side of each mixing pipeline, and a third nozzle connected to the bottom of each mixing pipeline and communicated with the reaction chamber, wherein the first nozzle and the second nozzle extend to the outside of the mixing chamber, a swirl mixer is arranged in each mixing pipeline, and each third nozzle is internally provided with the gas flow rate controller. Respectively introducing natural gas into a mixing pipeline through a first nozzle and oxygen into the mixing pipeline through a second nozzle, mixing the natural gas and the oxygen by a swirl mixer in the mixing pipeline, and introducing the mixed gas and the oxygen into a reaction chamber through a third nozzle for reaction; through setting up a plurality of hybrid tube ways and set up the whirl blender in every hybrid tube way for natural gas and oxygen are at the time misce bene of utmost point short, and it is effectual to mix, avoids catching fire early, sets up a plurality of third tuyeres, makes the mist subregion get into the reacting chamber, and the reaction is more abundant. (the third nozzle is set as a nozzle with a magnetic switch, and the swirl mixer is a conventional arrangement in the art.)
Furthermore, a quenching thermometer extending to the outside is arranged in one side of the upper part of the quenching chamber. The effluent temperature of the cracked gas was monitored by a quench thermometer.
Furthermore, an overflow outlet is arranged at the middle upper part of one side of the quenching chamber, a sliding plate is arranged at one side of the overflow outlet, which is positioned in the quenching chamber, through a sliding component tight cover, and the bottom of the sliding plate is connected with a telescopic mechanism. And adjusting the telescopic mechanism, the telescopic mechanism and the sliding component to drive the sliding plate to reduce the height, so that the sliding plate does not close all the overflow outlets, the quenching liquid flows out of the quenching chamber through the part of the overflow outlets which is not closed by the sliding plate, and a solid byproduct carbon black in the quenching liquid is discharged out of the quenching chamber along with the quenching liquid. (in addition to the reaction of oxidizing and pyrolyzing methane and oxygen to form acetylene, there are also side reactions of cracking methane to form carbon black, carbon dioxide and carbon monoxide.)
Furthermore, the sliding assembly comprises sliding rails symmetrically arranged on the inner walls of the quenching chambers on the two sides of the overflow outlet and sliding blocks positioned on the sliding plates and matched with the sliding rails respectively, and a sealing gasket is arranged on one side of each sliding plate close to the inner wall of each quenching chamber. When the sliding block moves up and down in the sliding rail, the sliding block fixedly connected with the sliding block drives the sliding plate to ascend or descend along with the movement of the sliding block, and the sliding plate is tightly attached to the inner wall of the quenching chamber by the sealing layer, so that the leakage of quenching liquid is avoided.
Furthermore, the telescopic mechanism comprises a motor and a telescopic rod, the motor is fixedly arranged at the bottom of the quenching chamber, the telescopic rod is connected to the motor, the other end of the telescopic rod is connected with the bottom of the sliding plate, a telescopic sleeve is sleeved on the outer peripheries of the motor and the telescopic rod, and a controller electrically connected with the motor is arranged on the outer side of the quenching chamber. When the position of sliding plate is adjusted to needs, adjust the controller of the quenching chamber outside, the motor control telescopic link extension or shorten and rise or reduce the sliding plate, telescopic tube is isolated telescopic link and motor and quenching liquid, avoids influencing motor and telescopic link work, because telescopic tube is the telescopic hose, can adapt to the length change of telescopic link.
Furthermore, a reaction thermometer extending to the outer side is arranged on one side of the middle part in the reaction chamber, and a burner is arranged in the reactor. A reaction thermometer is arranged to monitor the reaction temperature, and a burner is arranged to adjust the reaction condition of the reaction chamber. A burner in the reactor ignites the natural gas and the oxygen, so that the natural gas and the oxygen perform an oxidative pyrolysis reaction, and a reaction thermometer monitors the temperature of the reaction chamber.
Furthermore, a safety valve is arranged in the quenching chamber, so that dangerous accidents such as gas explosion and the like are avoided.
A cracking method for preparing acetylene from natural gas comprises the following steps:
A. preheating natural gas and oxygen to 600-650 ℃, wherein the ratio of the natural gas to the oxygen is 1:1, introducing the natural gas into a mixing pipeline through a first nozzle, introducing the oxygen into the mixing pipeline through a second nozzle, and starting a swirl mixer to obtain mixed gas;
B. starting a gas flow rate controller to adjust the mixed gas flow rate to 29-40m/s, introducing the mixed gas into the reaction chamber through a third nozzle (22), starting a combustor, and carrying out a cracking reaction of natural gas;
C. opening a liquid injection port to introduce quenching liquid, opening a quenching nozzle after the liquid level of the quenching liquid is over the quenching nozzle, introducing pyrolysis gas in a reaction chamber into the quenching chamber, monitoring the effluent temperature of the pyrolysis gas through a quenching thermometer, opening an exhaust nozzle to discharge the pyrolysis gas, and completing pyrolysis.
When the device is used for preparing acetylene from natural gas, the natural gas is introduced into a mixing pipeline through a first nozzle, oxygen is introduced into the mixing pipeline through a second nozzle, natural gas and oxygen are mixed by a cyclone mixer in the mixing pipeline, the gas flow rate is adjusted to 29-40m/s by a gas flow rate controller, the mixed gas is introduced into a reaction chamber through a third nozzle for reaction, after the reaction is finished, quenching liquid is added into a quenching chamber through a liquid injection port, after the liquid level of the quenching liquid in the quenching chamber does not pass through the quenching nozzle, pyrolysis gas in the reaction chamber is introduced into the quenching chamber through the quenching nozzle, after the pyrolysis gas is cooled by the quenching liquid, water is discharged out of the device through an exhaust nozzle, and the temperature reduction of the pyrolysis gas is realized. The natural gas and the oxygen are preheated before being introduced into the device, so that the initial temperature is increased, the reaction speed is accelerated, the retention time of the mixed gas in the device is reduced, and tempering is avoided; natural gas and oxygen are fed into a mixing pipeline and a gas flow rate controller to control the flow rate of mixed gas in the reaction chamber, so that the mixed gas has good mixing effect, the mixed gas is accelerated, the flow rate in the reaction chamber is high and is consistent with the propagation speed of flame in the reaction chamber, the flame is kept stable in the center of the reaction chamber, the reaction time is short, and the tempering probability in the reaction process is reduced; through the cooperation of the liquid injection port, the water discharge port and the quenching thermometer, the pyrolysis gas can be quenched at an adjustable temperature, the pyrolysis gas is prevented from being cooled excessively, the discharged pyrolysis gas can be conveyed to a downstream process for further utilizing the heat energy of the pyrolysis gas, the energy consumption is low, and the problems that the pyrolysis gas is quenched in a quenching stage by adopting a cold water spraying mode in the conventional device, the pyrolysis gas is directly quenched to a lower temperature, the temperature of the pyrolysis gas is too low, the quenching temperature of the pyrolysis gas cannot be adjusted in time, the heat energy of the pyrolysis gas is wasted, and the energy consumption is high are solved.
Further, the temperature in the reaction chamber is 1350-1550 ℃. The temperature of the reaction chamber is controlled so that the natural gas is cracked at a faster rate.
Further, the quenching liquid is distilled water or brine.
Furthermore, the controller controls the motor, the motor drives the telescopic rod to reduce the height of the sliding plate, all overflow ports are not closed any more, and the solid byproduct carbon black in the extraction cooling liquid is discharged out of the quenching chamber along with the quenching liquid, so that the carbon black is discharged along with the quenching liquid and is not accumulated in the reaction chamber.
The invention has the following beneficial effects:
1. the invention relates to a low-energy-consumption cracking device for preparing acetylene from natural gas, which monitors the effluent temperature of cracking gas through a quenching thermometer, adds quenching liquid through a liquid injection port, discharges the quenching liquid through a water discharge port, and discharges the cracking gas through an exhaust nozzle, so that the cracking gas can be quenched at an adjustable temperature, the cracking gas is prevented from being excessively cooled, the discharged cracking gas can be conveyed to a downstream process to further utilize the heat energy of the cracking gas, and the energy consumption is low; the device solves the problems that the prior device adopts a cold water spraying mode to quench the pyrolysis gas in the quenching stage, directly quenches the pyrolysis gas to a lower temperature, the temperature of the pyrolysis gas is too low, the quenching temperature of the pyrolysis gas can not be adjusted in time, the heat energy of the pyrolysis gas is wasted, and the energy consumption is higher.
2. The invention relates to a low-energy consumption cracking device and method for preparing acetylene from natural gas, wherein raw natural gas and raw oxygen flow through a cyclone mixer in a mixing pipeline to be in a cyclone state, so that the raw material gas is uniformly mixed in a very short time, and early ignition is avoided.
3. The low-energy-consumption cracking device for preparing acetylene from natural gas is provided with a plurality of mixing pipelines, so that raw material gases are mixed in a partitioning manner, and the uniform effect is improved.
4. The invention relates to a low-energy-consumption cracking device for preparing acetylene from natural gas, which is provided with a plurality of third nozzles with smaller diameters, wherein mixed gas in a mixing pipeline enters a reaction chamber in a subarea mode, a gas flow rate controller is arranged at the bottom of the mixing pipeline, so that the mixed gas is accelerated, the flow rate in the reaction chamber is high and is consistent with the flame propagation speed in the reaction chamber, and the flame is kept stable in the center of the reaction chamber.
5. The method of the cracking device for preparing acetylene from natural gas based on low energy consumption preheats the raw material gas in advance, improves the reaction speed, shortens the reaction time, shortens the retention time of the mixed gas in the equipment, and reduces the possibility of tempering; the raw material gas is introduced into a mixing pipeline to be uniformly mixed, so that the mixing effect is good; the liquid level height is adjusted by the regulator, so that the pyrolysis gas can be quenched at an adjustable temperature, excessive temperature reduction of the pyrolysis gas is avoided, the discharged pyrolysis gas can be conveyed to a downstream process to further utilize heat energy of the pyrolysis gas, and the energy consumption is low.
6. The method for preparing the acetylene cracking device based on the natural gas with low energy consumption, disclosed by the invention, has the advantages that the controller is adjusted, the carbon black in the quenching liquid can be discharged out of the quenching chamber along with the quenching liquid, the discharge of the carbon black along with the quenching liquid is realized, and the practicability of the device is higher.
Drawings
FIG. 1 is a schematic diagram of a cracking apparatus for producing acetylene from natural gas with low energy consumption;
FIG. 2 is a structural diagram of a cyclone mixer of a cracking apparatus for producing acetylene from natural gas with low energy consumption;
fig. 3 is a structure diagram of a sliding plate and a slide rail of a natural gas to acetylene cracking device with low energy consumption.
Reference numerals: 1-first nozzle, 2-second nozzle, 3-mixing pipe, 4-quenching nozzle, 5-overflow outlet, 6-exhaust nozzle, 7-liquid injection port, 8-cyclone mixer, 9-burner, 10-water discharge port, 12-telescopic rod, 13-motor, 14-controller, 15-reaction thermometer, 16-quenching thermometer, 17-sliding plate, 18-sliding rail, 19-sliding block, 21-telescopic sleeve, 22-third nozzle.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Detailed Description
Example 1
The invention provides a low-energy-consumption cracking device for preparing acetylene from natural gas, which comprises a mixing chamber and a reaction chamber communicated with the bottom of the mixing chamber, and is characterized in that an air inlet pipeline communicated with the outside and the reaction chamber is arranged in the mixing chamber, a gas flow rate controller 14 is arranged in the air inlet pipeline communicated with the reaction chamber, a quenching chamber is sleeved below the middle upper part of the reaction chamber, at least one quenching nozzle 4 communicated with the quenching chamber is arranged on the side wall of the lower part of the reaction chamber, an exhaust nozzle 6 is arranged on one side of the top of the quenching chamber, a liquid injection port 7 is arranged on the middle upper part of one side of the quenching chamber, and a water discharge port 10 is arranged at the bottom of one side of the quenching chamber. (quenching nozzle 4 is configured as a nozzle with a magnetically-activated switch, in a conventional arrangement known in the art, and gas flow rate controller 14 is in a conventional arrangement known in the art.)
The working and using process is as follows: when the device is used, natural gas and oxygen are introduced into the mixing chamber through the gas inlet pipeline to be mixed to obtain mixed gas, the gas flow rate controller 14 adjusts the flow rate of the mixed gas to 29-40m/s and introduces the mixed gas into the reaction chamber to react, wherein the main component in the natural gas is methane, and the main reaction in the reaction chamber is oxidation pyrolysis of the methane and the oxygen to generate acetylene, after the reaction is finished, quenching liquid is added into the quenching chamber through the liquid injection port 7, after the liquid level of the quenching liquid in the quenching chamber does not pass through the quenching nozzle 4, pyrolysis gas (most of the pyrolysis gas is acetylene, and the pyrolysis gas also contains impurity gases such as carbon monoxide and carbon dioxide) in the reaction chamber is introduced into the quenching chamber through the quenching nozzle 4, the pyrolysis gas is cooled by the quenching liquid to discharge water, and is discharged out of the device through the exhaust nozzle 6, so that the temperature of the pyrolysis gas is reduced; (pyrolysis gas enters subsequent processes such as impurity removal, concentration and the like after being discharged from the exhaust nozzle 6.) when the water outlet temperature of the pyrolysis gas needs to be increased, partial quenching liquid is discharged from the water discharge port 10, and when the water outlet temperature of the pyrolysis gas needs to be reduced, the quenching liquid is added through the liquid injection port 7 to increase the liquid level of the quenching liquid; the gas flow rate controller 14 is arranged in the gas inlet pipeline, so that the mixed gas is accelerated, the flow rate in the reaction chamber is high and is consistent with the flame propagation speed in the reaction chamber, the flame is kept stable in the center of the reaction chamber, and the tempering is avoided; the quenching liquid is added through the liquid injection port 7 or is discharged from the water discharge port 10, and the pyrolysis gas is discharged through the gas discharge pipe nozzle 6, so that the pyrolysis gas can be quenched at an adjustable temperature, the pyrolysis gas is prevented from being excessively cooled, the discharged pyrolysis gas can be conveyed to a downstream process to further utilize the heat energy of the pyrolysis gas, and the energy consumption is low; the device solves the problems that the prior device adopts a cold water spraying mode to quench the pyrolysis gas in the quenching stage, directly quenches the pyrolysis gas to a lower temperature, the temperature of the pyrolysis gas is too low, the quenching temperature of the pyrolysis gas can not be adjusted in time, the heat energy of the pyrolysis gas is wasted, and the energy consumption is higher.
Example 2
Based on embodiment 1, referring to fig. 1 and 2, the present invention provides a low energy consumption cracking apparatus for producing acetylene from natural gas, wherein the gas inlet pipeline includes a plurality of mixing pipes 3 located in a mixing chamber, a first nozzle 1 connected to an upper portion of each mixing pipe 3, a second nozzle 2 connected to one side of each mixing pipe 3, and a third nozzle 22 connected to a bottom of each mixing pipe 3 and communicated with a reaction chamber, the first nozzle 1 and the second nozzle 2 extend to an outside of the mixing chamber, a swirl mixer 8 is disposed in each mixing pipe 3, and the gas flow rate controller 14 is disposed in each third nozzle 22. Respectively introducing natural gas into a mixing pipeline 3 through a first nozzle 1 and oxygen into the mixing pipeline 3 through a second nozzle 2, mixing the natural gas and the oxygen by a swirl mixer 8 in the mixing pipeline 3, and introducing the mixture into a reaction chamber for reaction through a third nozzle 22; through setting up a plurality of hybrid tube ways 3 and set up whirl blender 8 in every hybrid tube way 3 for natural gas and oxygen are at the time misce bene of extremely short, and it is effectual to mix, avoids catching fire early, sets up a plurality of third tuyeres 22, makes the gas mixture subregion get into the reaction chamber, and the reaction is more abundant. (the third nozzle 22 is provided as a nozzle with a magnetically attractive switch and the swirl mixer 8 is a conventional arrangement known in the art.)
Example 3
Based on the embodiment 2, referring to fig. 1 and fig. 3, the invention provides a low-energy consumption cracking device for acetylene made from natural gas, wherein a quenching thermometer 16 extending to the outside is arranged on one side in the upper part of a quenching chamber. The effluent temperature of the pyrolysis gas was monitored by a quench thermometer 16. The middle upper part of one side of the quenching chamber is provided with an overflow outlet 5, one side of the overflow outlet 5 positioned in the quenching chamber is provided with a sliding plate 17 through a sliding component tight cover, and the bottom of the sliding plate 17 is connected with a telescopic mechanism. The telescopic mechanism, the telescopic mechanism and the sliding component are adjusted to drive the sliding plate 17 to reduce the height, so that the sliding plate 17 does not close all the overflow outlets 5, the quenching liquid flows out of the quenching chamber through the part of the overflow outlets 5 which is not closed by the sliding plate 17, and a solid byproduct carbon black in the quenching liquid is discharged out of the quenching chamber along with the quenching liquid. (except for the reaction of generating acetylene by oxidizing and pyrolyzing methane and oxygen in the reaction chamber, and the side reaction of generating carbon black, carbon dioxide and carbon monoxide by cracking methane) the sliding component comprises sliding rails 18 symmetrically arranged on the inner walls of the quenching chambers at the two sides of the overflow port 5 and sliding blocks 19 positioned on the sliding plates 17 and respectively matched with the sliding rails 18, and one side of the sliding plates 17 close to the inner walls of the quenching chambers is provided with a sealing gasket. (the sliding block 19 is positioned in the sliding rail 18, and the sealing gasket is tightly attached to the inner wall of the quenching chamber.) when the sliding block 19 moves up and down in the sliding rail 18, the sliding block 19 fixedly connected with the sliding block 19 drives the sliding plate 17 to ascend or descend along with the movement of the sliding block 19, and the sliding plate 17 is tightly attached to the inner wall of the quenching chamber by the sealing layer, so that the leakage of the quenching liquid is avoided. The telescopic mechanism comprises a motor 13 fixed at the bottom of the quenching chamber and a telescopic rod 12 connected to the motor 13 and the other end of the telescopic rod is connected with the bottom of a sliding plate 17, a telescopic sleeve 21 is sleeved on the outer peripheries of the motor 13 and the telescopic rod 12, and a controller 14 electrically connected with the motor 13 is arranged outside the quenching chamber. When the position of the sliding plate 17 needs to be adjusted, the controller 14 outside the quenching chamber is adjusted, the motor 13 controls the telescopic rod 12 to extend or shorten to lift or lower the sliding plate 17, the telescopic sleeve 21 isolates the telescopic rod 12 and the motor 13 from the quenching liquid, the work of the motor 13 and the telescopic rod 12 is avoided being influenced, and the telescopic sleeve 21 is a telescopic hose and can adapt to the length change of the telescopic rod 12.
Example 4
Based on the embodiment 3, referring to fig. 1, the invention provides a low-energy consumption cracking device for preparing acetylene from natural gas, wherein a reaction thermometer 15 extending to the outer side is arranged on one side of the middle part in a reaction chamber, and a burner 9 is arranged in the reactor. A reaction thermometer 15 is provided to monitor the reaction temperature, and a burner 9 is provided to regulate the reaction conditions in the reaction chamber. A burner 9 in the reactor ignites the natural gas and oxygen so that the natural gas and oxygen undergo an oxidative pyrolysis reaction, and a reaction thermometer 15 monitors the temperature of the reaction chamber. The quenching chamber is internally provided with a safety valve, so that dangerous accidents such as gas explosion and the like are avoided.
Example 5
Based on embodiments 1-4, the invention provides a cracking method for preparing acetylene from natural gas, which comprises the following steps:
A. preheating natural gas and oxygen to 600-650 ℃, wherein the ratio of the natural gas to the oxygen is 1:1, introducing the natural gas into a mixing pipeline 3 through a first nozzle 1, introducing the oxygen into the mixing pipeline 3 through a second nozzle 2, and starting a swirl mixer 8 to obtain mixed gas;
B. starting the gas flow rate controller 14 to adjust the mixed gas flow rate to 29-40m/s, introducing the mixed gas into the reaction chamber through the third nozzle 22, starting the combustor 9, and performing a natural gas cracking reaction;
C. opening the liquid injection port 7 to introduce quenching liquid, opening the quenching nozzle 4 after the liquid level of the quenching liquid is over the quenching nozzle 4, introducing pyrolysis gas in the reaction chamber into the quenching chamber, monitoring the effluent temperature of the pyrolysis gas through a quenching thermometer 16, opening the exhaust nozzle 6 to discharge the pyrolysis gas, and completing the pyrolysis.
When the device is used for preparing acetylene from natural gas, the natural gas is introduced into a mixing pipeline 3 through a first nozzle 1, oxygen is introduced into the mixing pipeline 3 through a second nozzle 2, the natural gas and the oxygen are mixed by a cyclone mixer 8 in the mixing pipeline 3, a gas flow rate controller 14 adjusts the flow rate of the mixed gas to 29-40m/s, the mixed gas is introduced into a reaction chamber through a third nozzle 22 for reaction, after the reaction is finished, a quenching liquid is added into the quenching chamber through a liquid injection port 7, when the liquid level of a quenching liquid in the quenching chamber does not pass through the quenching nozzle 4, pyrolysis gas in the reaction chamber is introduced into the quenching chamber through the quenching nozzle 4, the pyrolysis gas is cooled by the quenching liquid, and water is discharged out of the device through an exhaust nozzle 6, so that the temperature of the pyrolysis gas is reduced. The natural gas and the oxygen are preheated before being introduced into the device, so that the initial temperature is increased, the reaction speed is accelerated, the retention time of the mixed gas in the device is reduced, and tempering is avoided; natural gas and oxygen are fed into the mixing pipeline 3 and the gas flow rate controller 14 to control the flow rate of the mixed gas in the reaction chamber, so that the mixed gas has good mixing effect, the mixed gas is accelerated, the flow rate in the reaction chamber is high and is consistent with the flame propagation speed in the reaction chamber, the flame is kept stable in the center of the reaction chamber, the reaction time is short, and the tempering probability in the reaction process is reduced; through the cooperation of the liquid injection port 7, the water discharge port 10 and the quenching thermometer 16, the quenching of the pyrolysis gas with adjustable temperature is realized, the pyrolysis gas is prevented from being excessively cooled, the discharged pyrolysis gas can be conveyed to a downstream process for further utilizing the heat energy of the pyrolysis gas, the energy consumption is low, and the problems that the pyrolysis gas is directly quenched to a lower temperature by quenching the pyrolysis gas in a cooling stage by adopting a cold water spraying mode, the temperature of the pyrolysis gas is too low, the quenching temperature of the pyrolysis gas cannot be timely adjusted, the heat energy of the pyrolysis gas is wasted, and the energy consumption is higher in the existing device are solved. The temperature in the reaction chamber is 1350-1550 ℃. The temperature of the reaction chamber is controlled so that the natural gas is cracked at a faster rate. The quenching liquid is distilled water or brine.
6. Test examples
Based on examples 1-5, referring to fig. 1, a cracking apparatus for producing acetylene from natural gas is provided according to the present invention. In a certain test, the equipment is used for preparing acetylene from natural gas.
6.1 calculation procedure
According to the flame flow rate of 29-40m/s, the gas flow rate controller will enter into the reactionThe speed of the chamber is controlled to be 25-28m/s, and the volume flow of the mixed gas is set to be 0.024-0.027m3And/s, calculating the diameter range value of the reaction chamber according to the following formula:
(3.1415÷4)×D2x mixed gas flow rate is the volume flow rate of the mixed gas (D is the diameter of the reaction chamber).
0.024÷25÷(3.1415÷4)＝35×10-3m
0.026÷28÷(3.1415÷4)＝35×10-3m
In summary, the diameter of the reaction chamber was set to 3m, the length of the reaction chamber was set to 3m, and the acetylene production from natural gas was carried out using this apparatus.
The volume of the reaction chamber is 1.52×3.14×3＝23.0175m3
The saturation time of the reaction chamber was: 23.0175 ÷ 0.025 ═ 920.7s
6.2 record of experiment:
6.3.1 Experimental procedures
A. Preheating natural gas and oxygen to 600-650 deg.C according to 0.025m3Respectively introducing natural gas into a mixing pipeline 3 through a first nozzle 1 and introducing oxygen into the mixing pipeline 3 through a second nozzle 2 at volume flow/s (introducing time of the natural gas and the oxygen is 900 s.) and starting a swirl mixer 8 to obtain mixed gas;
B. starting a gas flow rate controller to adjust the mixed gas flow rate to 29-40m/s, introducing the mixed gas into the reaction chamber through a third nozzle 22, and starting a combustor to perform a natural gas cracking reaction;
C. opening the liquid injection port 7 to introduce quenching liquid, opening the quenching nozzle 4 after the liquid level of the quenching liquid is over the quenching nozzle 4, introducing pyrolysis gas in the reaction chamber into the quenching chamber, monitoring the effluent temperature of the pyrolysis gas through a quenching thermometer 16, opening the exhaust nozzle 6 to discharge the pyrolysis gas, and completing the pyrolysis.
6.3.2 Experimental data
The temperature of the effluent of the pyrolysis gas was controlled to 150 ℃ in this experiment. The temperature of the pyrolysis gas measured by the quenching thermometer 16 per minute by raising the liquid level in the quenching chamber is shown in the following table:
| time (minutes) | Height of liquid level | Temperature of cracked |
| 1 | 10 | 1200 |
| 2 | 10 | 850 |
| 3 | 10 | 800 |
| 4 | 10 | 162 |
| 5 | 10 | 162 |
| 6 | 10 | 155 |
Cracking gas with the temperature range of 153-162 ℃ is prepared.
6.3.3 Experimental analysis
In conclusion, in the embodiment 6, the cracking device for preparing acetylene from natural gas with low energy consumption of the invention is used for preparing the cracking gas with the temperature range of 153-162 ℃, thereby solving the problems that the existing device is used for quenching the cracking gas, cold water is directly sprayed, the temperature of the quenched cracking gas is too low, the quenching temperature of the cracking gas cannot be adjusted timely, and the energy consumption is high.
Claims (10)
1. The utility model provides a low energy consumption's pyrolysis device of natural gas system acetylene, includes mixing chamber, with the reaction chamber of mixing chamber bottom intercommunication, its characterized in that, be provided with in the mixing chamber with the external world with the inlet line of reaction chamber intercommunication, with the reaction chamber intercommunication be provided with gas flow rate controller in the inlet line, the cover is equipped with the quenching room below the upper middle part in the reaction chamber, and reaction chamber lower part lateral wall is provided with at least one quenching mouthpiece (4) with the quenching room intercommunication, and quenching room top one side is provided with exhaust nozzle (6), and the upper middle part of quenching room one side is equipped with annotates liquid mouth (7), and one side bottom of quenching room is equipped with outlet (10).
2. The cracking device for preparing acetylene from natural gas with low energy consumption according to claim 1, wherein the air inlet pipeline comprises a plurality of mixing pipelines (3) positioned in the mixing chamber, a first nozzle (1) connected to the upper part of each mixing pipeline (3), a second nozzle (2) connected to one side of each mixing pipeline (3), and a third nozzle (22) connected to the bottom of each mixing pipeline (3) and communicated with the reaction chamber, the first nozzle (1) and the second nozzle (2) extend to the outside of the mixing chamber, a swirl mixer (8) is arranged in each mixing pipeline (3), and the gas flow rate controller is arranged in each third nozzle (22).
3. A low energy consumption natural gas acetylene cracking apparatus according to claim 1 or 2, wherein a quenching thermometer (16) is provided in one side of the upper part of the quenching chamber to extend to the outside.
4. The low-energy consumption cracking device for acetylene preparation from natural gas according to claim 3, wherein an overflow outlet (5) is arranged at the middle upper part of one side of the quenching chamber, a sliding plate (17) is arranged at one side of the overflow outlet (5) in the quenching chamber through a sliding component tight cover, and a telescopic mechanism is connected to the bottom of the sliding plate (17).
5. The low-energy-consumption cracking device for acetylene preparation from natural gas according to claim 4, wherein the sliding assembly comprises sliding rails (18) symmetrically arranged on the inner walls of the quenching chambers on both sides of the overflow port (5) and sliding blocks (19) positioned on the sliding plates (17) and respectively matched with the sliding rails (18), and a sealing gasket is arranged on one side of each sliding plate (17) close to the inner wall of each quenching chamber.
6. The cracking device for preparing acetylene from natural gas with low energy consumption according to claim 5, wherein the telescopic mechanism comprises a motor (13) fixed at the bottom of the quenching chamber and a telescopic rod (12) connected to the motor (13) and connected with the bottom of the sliding plate (17) at the other end, telescopic sleeves (21) are sleeved on the peripheries of the motor (13) and the telescopic rod (12), and a controller (14) electrically connected with the motor (13) is arranged outside the quenching chamber.
7. A low energy consumption cracking device for preparing acetylene from natural gas according to claim 6, characterized in that a reaction thermometer (15) is arranged at one side of the middle part in the reaction chamber and extends to the outside, and a burner (9) is arranged in the reactor.
8. The method for cracking acetylene from natural gas based on the low-energy-consumption cracking device for preparing acetylene from natural gas according to any one of claims 1 to 7, characterized by comprising the following steps:
A. preheating natural gas and oxygen to 600-650 ℃, wherein the ratio of the natural gas to the oxygen is 1:1, introducing the natural gas into a mixing pipeline (3) through a first nozzle (1), introducing the oxygen into the mixing pipeline (3) through a second nozzle (2), and starting a swirl mixer to obtain mixed gas;
B. starting a gas flow rate controller to adjust the flow rate of the mixed gas to 29-40m/s, introducing the mixed gas into the reaction chamber through a third nozzle (22), starting a combustor, and carrying out a cracking reaction of natural gas;
C. opening a liquid injection port (7) to introduce quenching liquid, opening a quenching nozzle (4) after the liquid level of the quenching liquid does not pass through the quenching nozzle (4), introducing pyrolysis gas in a reaction chamber into the quenching liquid, monitoring the effluent temperature of the pyrolysis gas through a quenching thermometer (16), opening an exhaust nozzle (6) to discharge the pyrolysis gas, and finishing pyrolysis.
9. The apparatus and method for cracking natural gas to acetylene according to claim 8, wherein the temperature in the reaction chamber is 1350-1550 ℃.
10. The low energy consumption cracking apparatus and method for producing acetylene from natural gas according to claim 8, wherein the quenching liquid is distilled water or brine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210029361.3A CN114405427A (en) | 2022-01-11 | 2022-01-11 | Low-energy-consumption cracking device and method for preparing acetylene from natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210029361.3A CN114405427A (en) | 2022-01-11 | 2022-01-11 | Low-energy-consumption cracking device and method for preparing acetylene from natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114405427A true CN114405427A (en) | 2022-04-29 |
Family
ID=81272629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210029361.3A Pending CN114405427A (en) | 2022-01-11 | 2022-01-11 | Low-energy-consumption cracking device and method for preparing acetylene from natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114405427A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775242A (en) * | 2009-12-18 | 2010-07-14 | 江西黑猫炭黑股份有限公司 | Soft carbon black reacting furnace |
| CN102408916A (en) * | 2010-09-21 | 2012-04-11 | 中国石油化工股份有限公司 | Method for removing alkine and dialkene from pyrolysis gas through selective hydrogenation |
| CN102951711A (en) * | 2011-08-25 | 2013-03-06 | 中国石油化工集团公司 | Method for treating carbon black water obtained by natural gas partial oxidation preparation of acetylene |
| CN205761090U (en) * | 2016-06-13 | 2016-12-07 | 北京凯瑞英科技有限公司 | Hydrocarbon partial oxidation prepares the large-scale reactor of acetylene and synthesis gas |
| CN107261993A (en) * | 2017-07-26 | 2017-10-20 | 北京联创鼎新石化设备有限公司 | A kind of pyrolysis furnace of use gas by partial oxidation of natural legal system acetylene |
| CN107670358A (en) * | 2017-10-24 | 2018-02-09 | 广元海诺食品有限公司 | A kind of high efficient full automatic edible oil filter device |
| CN109663387A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | A kind of degassing deodorizing methods of acetylene unit sooty water |
| CN112524869A (en) * | 2020-12-28 | 2021-03-19 | 新疆美克化工股份有限公司 | Device for changing carbon black circulating water cooling heat exchange and use method |
-
2022
- 2022-01-11 CN CN202210029361.3A patent/CN114405427A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775242A (en) * | 2009-12-18 | 2010-07-14 | 江西黑猫炭黑股份有限公司 | Soft carbon black reacting furnace |
| CN102408916A (en) * | 2010-09-21 | 2012-04-11 | 中国石油化工股份有限公司 | Method for removing alkine and dialkene from pyrolysis gas through selective hydrogenation |
| CN102951711A (en) * | 2011-08-25 | 2013-03-06 | 中国石油化工集团公司 | Method for treating carbon black water obtained by natural gas partial oxidation preparation of acetylene |
| CN205761090U (en) * | 2016-06-13 | 2016-12-07 | 北京凯瑞英科技有限公司 | Hydrocarbon partial oxidation prepares the large-scale reactor of acetylene and synthesis gas |
| CN107261993A (en) * | 2017-07-26 | 2017-10-20 | 北京联创鼎新石化设备有限公司 | A kind of pyrolysis furnace of use gas by partial oxidation of natural legal system acetylene |
| CN109663387A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | A kind of degassing deodorizing methods of acetylene unit sooty water |
| CN107670358A (en) * | 2017-10-24 | 2018-02-09 | 广元海诺食品有限公司 | A kind of high efficient full automatic edible oil filter device |
| CN112524869A (en) * | 2020-12-28 | 2021-03-19 | 新疆美克化工股份有限公司 | Device for changing carbon black circulating water cooling heat exchange and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2368828A (en) | Process for producing carbon black | |
| CN102665868B (en) | Method for reducing nitrogen oxides from the exhaust gas of a coke oven | |
| AU2009247197A1 (en) | Method for reforming exhaust gas generated from metallurgical furnace and apparatus therefor | |
| CZ293107B6 (en) | Process for producing carbon black and apparatus for making the same | |
| DE2428891C3 (en) | Shaft furnace for melting mineral substances for the production of mineral wool | |
| CN107261993A (en) | A kind of pyrolysis furnace of use gas by partial oxidation of natural legal system acetylene | |
| CN106661344A (en) | Process for controlling the porosity of carbon blacks | |
| CN210683654U (en) | Furnace method pigment carbon black reactor | |
| CN103189528A (en) | Method for controlling thermal balance of a suspension smelting furnace and suspension smelting furnace | |
| CN85105729A (en) | Method with producing synthetic gas from hydrocarbon fuel | |
| US1912621A (en) | Method and means for roasting sulphide ores | |
| CN106433228A (en) | Carbon black reactor | |
| CN102964883A (en) | Hot-cracking-method carbon black production process assisted by hydrogen-enriched gas | |
| CN114405427A (en) | Low-energy-consumption cracking device and method for preparing acetylene from natural gas | |
| KR20120008035A (en) | Blast furnace operation method, low-calorific-value gas combustion method for same, and blast furnace equipment | |
| CN113652508A (en) | Electromagnetic induction heating reforming furnace and using method thereof | |
| CN105879806B (en) | Hydrocarbon partial oxidation prepares the large-scale reactor of acetylene and synthesis gas | |
| US2822411A (en) | Process for the pyrolysis of hydrocarbons to acetylene | |
| RU2394054C2 (en) | Method of producing semi-active technical carbon and reactor for realising said method | |
| CN208087537U (en) | A kind of black reactor | |
| US3222260A (en) | Heating of high chambered horizontal coke ovens | |
| RU2446195C1 (en) | Method of producing low-dispersed technical carbon and reactor for realising said method | |
| US3019271A (en) | Process and apparatus for treatment of hydrocarbons | |
| CN209960489U (en) | A kind of burner | |
| RU2580917C1 (en) | Method of producing soot and reactor therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |