A solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device and a method of using the same

Abstract

The application discloses a solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device and a use method thereof, and belongs to the technical field of solid waste resource utilization. Hydrogen and light olefins are prepared by using a solid waste gasification module, a hydrogen source or an active reaction atmosphere is provided for gaseous hydrogenation of biomass pyrolysis products, and deoxidization and hydrogenation reaction of solid waste gasification products and biomass pyrolysis products is carried out in a deoxidization and hydrogenation module with continuously adjustable microwave emission frequency, so that upgraded bio-oil is obtained. The solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device disclosed by the application can realize resource utilization of solid waste, can be used for large-scale treatment and production of solid waste garbage generated in production and life, and can significantly improve the quality of biomass pyrolysis oil, so that the cost of catalytic upgrading of the biomass pyrolysis oil is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of solid waste resource utilization, and specifically relates to a solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device and a use method thereof. Background Art

[0002] In recent decades, the dramatic increase in fossil fuel consumption worldwide has led to a series of resource and environmental problems, such as greenhouse gas emissions and deteriorating air quality caused by SOx, NOx, and fine particulate matter. Furthermore, the volatility of fossil fuel prices and the depletion of fossil energy sources have cast a shadow over the global economy. Therefore, it is crucial to produce carbon-containing liquid fuels from renewable energy sources to gradually replace traditional fossil fuels. Biomass energy, a widely available natural resource, has an annual global production of up to 100 billion tons. Among the many renewable energy sources, biomass is the only renewable carbon resource with enormous potential for producing heat, electricity, fuels, and high-value-added chemicals. According to the International Energy Agency (IEA), biomass energy could account for 10% of primary energy supply by 2035, and by 2050, biomass fuels will replace 27% of fossil fuels.

[0003] During the thermochemical conversion of biomass to produce liquid fuels, the inherent hydrogen deficiency of biomass feedstock is a major reason why traditional catalytic pyrolysis technology is difficult to obtain high-quality bio-oil. Relevant scholars have proposed the concept of effective H / C of feedstock, which further defines the hydrogen deficiency state of biomass. The expression is:

[0004]

[0005] Among them, the effective H / C ratio of biomass is generally lower than 0.3, which is a typical hydrogen-deficient raw material. Zhang Huiyan reported that the low effective H / C ratio of biomass is an important factor restricting the preparation of high-hydrocarbon bio-oil by catalytic pyrolysis. In order to improve the effective H / C ratio of pyrolysis raw materials, co-catalytic pyrolysis of biomass with hydrogen-rich solid waste (such as PE, PP plastics and waste rubber, etc.) can be used as an effective way to improve the quality of biomass pyrolysis oil. However, conventional co-catalytic pyrolysis of biomass and multi-hydrogen raw materials also has some key problems that need to be solved, specifically:

[0006] (1) Catalyst: The micropore size of HZSM-5 molecular sieve limits the diffusion and mass transfer of biomass pyrolysis products within its pores to a certain extent. In particular, some large molecular pyrolysis products, if they cannot enter the molecular sieve pores for catalytic conversion, will gather on the surface of the catalyst to form coke, covering the surface active sites of HZSM-5 or blocking the pores, thereby seriously reducing its activity.

[0007] (2) Co-pyrolysis process: Single-stage reactors such as fixed-bed, fluidized-bed, microwave-assisted heating reactors and pyrolysis-chromatography-mass spectrometry (Py-GC / MS) are often used to carry out in situ / ex situ co-catalytic pyrolysis of biomass and polyhydrogen feedstocks. However, single-stage reactors cannot simultaneously regulate the cracking of biomass and the catalytic reforming of pyrolysis products. Moreover, in the in situ co-catalytic pyrolysis reaction mode, direct contact between the feedstock and the catalyst may accelerate the deactivation of the catalyst (e.g., poisoning by ash, potassium and sodium inorganic salts in the biomass feedstock).

[0008] In order to solve the common problems existing in the co-catalytic pyrolysis of the above-mentioned biomass and high H / C raw materials, an innovative study on the composite modification of HZSM-5 molecular sieve catalyst by alkaline solution impregnation-hydrothermal treatment was first carried out in the early stage, and an HZSM-5 catalyst with a mesoporous-microporous hierarchical composite pore system was prepared. The reaction mechanism of its catalytic pyrolysis of waste bamboo chips to prepare aromatic target products was explored; at the same time, mesoporous multi-component alkaline metal oxide catalysts such as CeO2-ZrO2 / Al2O3 were designed and synthesized, and the reaction pathway of waste bamboo chips to generate ketones and other hydrocarbon precursors under the action of alkaline metal oxide catalysts was analyzed; on this basis, the alkaline metal Oxides were integrated into HZSM-5 molecular sieves (modified and unmodified), and a bifunctional catalyst system of solid alkaline cracking and solid acid continuous shape-selective catalysis was developed. The synergistic effect of alkaline metal oxides and HZSM-5 molecular sieves in the catalytic pyrolysis of waste bamboo chips was elucidated. In a novel reactor designed and constructed independently, combining fluidized bed pyrolysis with fixed-bed catalytic reforming, the coupling mechanism of two-stage co-catalytic pyrolysis and online catalytic reforming of waste bamboo chips and waste tires was revealed. The content of target products such as aromatic hydrocarbons in the prepared pyrolysis oil reached 71.5%. However, compared with aviation fuel, the bio-oil still needs to be further upgraded in the following two aspects:

[0009] (1) Continue to reduce the oxygen content in the bio-oil to reach a level of deep deoxygenation;

[0010] (2) Hydrogenate bio-oil to increase the yield of linear and cycloalkanes.

[0011] Bio-oil hydrodeoxygenation generally refers to the hydrodeoxygenation of liquid bio-oil. This upgrading process uses H2 as a carrier gas and is carried out in an autoclave at a certain temperature and pressure. Since this reaction process consumes H2, it increases the cost of upgrading the bio-oil to a certain extent. Furthermore, the condensed pyrolysis oil is heated and pressurized again in the autoclave, which not only results in secondary energy consumption but also causes a high degree of repolymerization of oxygen-containing species in the bio-oil, thereby deactivating the catalyst, further increasing the cost of catalytic hydrogenation of bio-oil. On the other hand, rapid catalytic hydropyrolysis technology has attracted increasing attention in recent years. Unlike traditional biomass catalytic pyrolysis reactions under an inert (N2) atmosphere and atmospheric pressure, pressurized catalytic hydrogenolysis uses H2 as an active carrier gas, catalytically cracking the biomass at a certain reaction pressure and hydrogenating the gaseous products online. It can be considered to integrate the rapid catalytic pyrolysis and hydrodeoxygenation processes of biomass. Specifically, a large number of unsaturated free radicals are generated during biomass pyrolysis, which can be saturated with the help of hydrogen from an external hydrogen source, thereby avoiding the occurrence of secondary reactions and reducing the polarity and oxygen content of the pyrolysis oil. With the addition of a suitable HDO catalyst, deep deoxygenation of the pyrolysis products can be achieved, and the pressure range of the reactor can also be flexibly selected to achieve the purpose of effective hydrogenation of the cracking products.

[0012] In addition, it is worth pointing out that the co-catalytic cracking of biomass and high-effective H / C raw materials can significantly improve the quality of pyrolysis oil, and multi-hydrogen solid waste such as PE, PP and PS plastics can also generate some H2 during the catalytic pyrolysis process. For example, Professor Chen Hanping of Huazhong University of Science and Technology designed and developed Ni-based metal oxide catalysts and carried out research on catalytic reforming hydrogen production using waste plastics as raw materials. The experimental results showed that the maximum H2 generation amount was as high as 67.00mmol / g plastic How to efficiently use polyhydrogenated solid waste in bio-oil upgrading has become an urgent problem to be solved. Summary of the Invention

[0013] The technical problem to be solved by the present invention is to provide a solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, which combines a solid waste gasification module, a biomass pyrolysis module and a deoxygenation hydrogenation module, requires little equipment investment, and efficiently realizes the deoxygenation hydrogenation process. Another technical problem to be solved by the present invention is to provide a method for using the solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, so as to realize the resource utilization of solid waste, prepare hydrogen and other light olefins by solid waste gasification, provide an active reaction atmosphere for the online hydrogenation and deoxygenation of biomass pyrolysis gaseous products in a hydrogenation reactor with continuously adjustable microwave emission frequency, and can process solid waste generated in production and life on a large scale and significantly improve the quality of biomass pyrolysis oil, thereby reducing the cost of catalytic quality improvement of biomass pyrolysis oil.

[0014] Technical solution: In order to solve the above problems, the technical solution adopted by the present invention is as follows:

[0015] A solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, comprising a solid waste gasification module, a biomass pyrolysis module and a deoxygenation hydrogenation module;

[0016] The solid waste gasification module includes a first screw feeder, a gasification reactor, a first temperature control system, and a first cyclone separator. The first temperature control system is provided with a temperature probe. The first screw feeder is connected to the feed port of the gasification reactor. The temperature probe of the first temperature control system extends into the interior of the gasification reactor. The gas outlet of the gasification reactor is connected to the first cyclone separator.

[0017] The biomass pyrolysis module includes a second screw feeder, a pyrolysis reactor, a second cyclone separator, and a second temperature control system. The second temperature control system is provided with a temperature probe. The second screw feeder is connected to the feed port of the pyrolysis reactor. The temperature probe of the second temperature control system extends into the interior of the pyrolysis reactor. The gas outlet of the pyrolysis reactor is connected to the second cyclone separator. The gasification reactor and the pyrolysis reactor are both connected to a nitrogen source.

[0018] The deoxygenation hydrogenation module includes a gas mixer, a quartz tube reactor, a microwave continuous frequency modulation power supply and a microwave resonant cavity; the gas mixer is connected to a first cyclone separator, a second cyclone separator and the quartz tube reactor; the quartz tube reactor is arranged in the microwave resonant cavity, a catalyst filling screen is provided in the quartz tube reactor, and an infrared thermometer is connected to the quartz tube reactor; the microwave continuous frequency modulation power supply is connected to the microwave resonant cavity; and a condensation system is provided at the outlet of the quartz tube reactor.

[0019] A solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, comprising a solid waste gasification module, a biomass pyrolysis module and a deoxygenation hydrogenation module;

[0020] The solid waste gasification module includes a first screw feeder, a gasification reactor, a first temperature control system, and a first cyclone separator; the first temperature control system is provided with a temperature probe; the first screw feeder is connected to the feed inlet of the gasification reactor, the temperature probe of the first temperature control system extends into the interior of the gasification reactor, and the gas outlet of the gasification reactor is connected to the first cyclone separator;

[0021] The biomass pyrolysis module includes a second screw feeder, a pyrolysis reactor, a second cyclone separator, and a second temperature control system. The second temperature control system is provided with a temperature probe. The second screw feeder is connected to the feed port of the pyrolysis reactor. The temperature probe of the second temperature control system extends into the interior of the pyrolysis reactor. The air outlet of the pyrolysis reactor is connected to the second cyclone separator. The gasification reactor is connected to an N2 source, and the air outlet of the first cyclone separator is connected to the air inlet of the pyrolysis reactor.

[0022] The deoxygenation hydrogenation module includes a gas mixer, a quartz tube reactor, a microwave continuous frequency modulation power supply and a microwave resonant cavity; the gas mixer is connected to the second cyclone separator and the quartz tube reactor, the quartz tube reactor is arranged in the microwave resonant cavity, a catalyst-filled screen is provided in the quartz tube reactor, and the microwave continuous frequency modulation power supply is connected to the microwave resonant cavity; a condensation system is provided at the outlet of the quartz tube reactor, and an infrared thermometer is connected to the quartz tube reactor.

[0023] The solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, the first temperature control system and the second temperature control system are both equipped with several temperature probes, the infrared thermometer is non-contact, and the gasification reactor and pyrolysis reactor are bubbling fluidized beds.

[0024] In the solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, the outlet of the quartz tube reactor is provided with an online detection system.

[0025] The solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, the microwave continuous frequency modulation power supply is composed of different frequency modulation modules, the microwave emission frequency is continuously adjustable between 2.45 and 8 GHz, the output power is freely adjusted between 200 and 500 W; the frequency adjustment range is 0.1 to 1000 MHz.

[0026] In the solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, gas flow meters are provided on the connecting pipes between the N2 source and the gasification reactor and on the connecting pipes between the N2 source and the pyrolysis reactor.

[0027] In the solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, gas flow meters are provided on the connecting pipes between the N2 source and the gasification reactor, and on the connecting pipes between the first cyclone separator and the pyrolysis reactor.

[0028] The solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device, the online detection system is a gas phase-mass spectrometer.

[0029] The method for using the above-mentioned solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device specifically comprises the following steps:

[0030] 1) The hydrogenation catalyst is evenly placed in the catalyst filling screen, and the solid waste raw material and the biomass raw material are added to the first screw feeder and the second screw feeder respectively; then the N2 source of the solid waste gasification module and the biomass pyrolysis module is turned on, and the N2 is purged through the gasification reactor, the pyrolysis reactor and the quartz tube reactor;

[0031] 2) After the purge is completed, the first temperature control system and the second temperature control system are started, and then the gasification reactor and the pyrolysis reactor are heated, and the microwave continuous frequency modulation power supply is simultaneously turned on to heat the deoxygenation hydrogenation catalyst. When the temperatures of the gasification reactor, the pyrolysis reactor, and the deoxygenation hydrogenation catalyst reach the reaction temperature, step 3) is entered;

[0032] 3) The first and second screw feeders are turned on, and the gasification and pyrolysis reactions begin. The products of the solid waste gasification module and the gaseous products of the biomass pyrolysis module are mixed in the gas mixer and then enter the quartz tube reactor for deoxygenation and hydrogenation reactions;

[0033] 4) After the deoxygenation and hydrogenation reaction, the products generated enter the condensation system. The condensable gaseous products are condensed by the condensation system to obtain bio-oil, and the non-condensable gaseous products are collected in the gas collection device for subsequent analysis.

[0034] The method for using the above-mentioned solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device specifically comprises the following steps:

[0035] 1) Before the reaction begins, the deoxygenation hydrogenation catalyst is evenly placed in the catalyst filling screen, and the solid waste raw material and the biomass raw material are added to the first screw feeder and the second screw feeder respectively; the N2 source of the solid waste gasification module and the biomass pyrolysis module is turned on, and the gasification reactor, pyrolysis reactor and quartz tube reactor are purged with N2;

[0036] 2) After the purge is completed, the first temperature control system and the second temperature control system are started, and then the gasification reactor and the pyrolysis reactor are heated, and the microwave continuous frequency modulation power supply is turned on at the same time. When the temperatures of the gasification reactor, the pyrolysis reactor and the deoxygenation hydrogenation catalyst reach the reaction temperature, step 3) is entered;

[0037] 3) The first and second screw feeders are respectively turned on, and the gasification and pyrolysis reactions begin. The products of the solid waste gasification module first pass through the first cyclone separator into the pyrolysis reactor, and then enter the gas mixer. After mixing with the gaseous products of the biomass pyrolysis module, they enter the quartz tube reactor and undergo deoxygenation and hydrogenation reactions under the action of microwaves with continuously changing frequencies;

[0038] 4) The products generated by deoxygenation and hydrogenation enter the condensation system. The condensable gaseous products are condensed through the condensation system to obtain bio-oil, and the non-condensable gaseous products are collected in the gas collection device for subsequent analysis.

[0039] Beneficial effects: Compared with the existing technology, the advantages of the present invention include:

[0040] (1) The present invention adopts a solid waste gasification module to gasify and prepare hydrogen and other light olefins, which can provide a hydrogen source or active reaction atmosphere for the online hydrogenation of biomass gaseous products, and can, to a certain extent, resourcefully utilize solid waste generated in production and life and reduce the cost of catalytic hydrogenation and upgrading of bio-oil; and ultra-high temperature gasification can avoid the problem of high tar content in conventional gasification reactions, and is conducive to the secondary cracking of tar to generate more small molecular hydrocarbon gases.

[0041] (2) The technology of online hydrogenation of biomass pyrolysis products in gaseous state with H2 and light hydrocarbons produced by solid waste gasification module in the present invention avoids secondary energy consumption in the process of liquid hydrogenation of bio-oil and reduces the cost of preparing liquid fuel by thermochemical conversion of biomass.

[0042] (3) Compared with the conventional microwave-assisted hydrogenation device with a fixed microwave frequency of 2.45 GHz (which only matches the intrinsic resonance frequency of water molecules), the microwave reactor with a continuously variable frequency of 2.45 to 8 GHz can excite more resonance hotspots and activate the hydrogen bonds of the active carrier gas and the CC and CH bonds of the biomass pyrolysis gaseous products, thereby achieving higher hydrogenation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the structure of the solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device in Example 1;

[0044] Figure 2 This is a schematic diagram of the structure of the solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device in Example 2. DETAILED DESCRIPTION

[0045] The present invention is further illustrated below with reference to the accompanying drawings and specific implementation examples. It should be understood that these implementation examples are only used to illustrate the patent of the present invention and are not used to limit the scope of the patent of the present invention. After reading the patent of the present invention, modifications of various equivalent forms of the patent of the present invention made by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0046] Example 1

[0047] A device for use in a method for gasifying solid waste coupled with gaseous hydrogenation of biomass pyrolysis products, such as Figure 1 As shown. Figure 1 It can be seen that the device includes a solid waste gasification module, a biomass pyrolysis module and a deoxygenation and hydrogenation module;

[0048] The solid waste gasification module includes a first screw feeder 1, a gasification reactor 2, a first temperature control system 3 and a first cyclone separator 4. The gasification reactor 2 is provided with an air inlet, a feed port and an air outlet. The feed port is provided on the side of the gasification reactor 2, the air inlet is provided at the bottom of the gasification reactor 2, and the air outlet is provided at the top of the gasification reactor 2; the first temperature control system 3 is provided with a temperature probe, and there may be multiple temperature probes; the first screw feeder 1 is connected to the feed port of the gasification reactor 2, and multiple temperature probes of the first temperature control system 3 extend into the interior of the gasification reactor 2 to monitor the temperature of the air inlet and the gasification reaction area of ​​the gasification reactor 2 respectively; the air outlet of the gasification reactor 2 is connected to the first cyclone separator 4;

[0049] The biomass pyrolysis module includes a second screw feeder 5, a pyrolysis reactor 6, a second cyclone separator 7 and a second temperature control system 8; the pyrolysis reactor 6 is provided with an air inlet, a feed port and an air outlet, the air inlet is arranged at the bottom of the pyrolysis reactor 6, the feed port is arranged at the side of the pyrolysis reactor 6, and the air outlet is arranged at the top of the pyrolysis reactor 6; the second temperature control system 8 is provided with a temperature probe, and there may be multiple temperature probes; the second screw feeder 5 is connected to the feed port of the pyrolysis reactor 6, and the temperature probes of the second temperature control system 8 are extended into different parts of the pyrolysis reactor 6, such as the air inlet and the pyrolysis reaction part, to monitor the temperature at the air inlet and the pyrolysis reaction part; the air outlet of the pyrolysis reactor 6 is connected to the second cyclone separator 7; the air inlets of the gasification reactor 2 and the pyrolysis reactor 6 are both connected to the N2 source; the gasification reactor 2 and the pyrolysis reactor 6 are both bubbling fluidized beds;

[0050] The deoxygenation hydrogenation module includes a gas mixer 9, a quartz tube reactor 10, a microwave continuous frequency modulation power supply 11 and a microwave resonant cavity 12; the air inlet of the gas mixer 9 is connected to the first cyclone separator 4 and the second cyclone separator 7, and the air outlet of the gas mixer 9 is connected to the quartz tube reactor 10. The gases in the first cyclone separator 4 and the second cyclone separator 7 enter the gas mixer 9 for mixing, and then enter the quartz tube reactor 10 through the gas mixer 9; the quartz tube reactor 10 is arranged in the microwave resonant cavity 12, and a catalyst filling screen 14 is provided in the quartz tube reactor 10. It is connected to an infrared thermometer 15, which is a non-contact type; a microwave continuous frequency modulation power supply 11 is connected to a microwave resonant cavity 12, and the location where the microwave continuous frequency modulation power supply 11 is connected to the microwave resonant cavity 12 is a microwave feed port; the microwave continuous frequency modulation power supply 11 is composed of different frequency modulation modules, the microwave emission frequency is continuously adjustable between 2.45 and 8 GHz, and the output power is freely adjusted between 200 and 500 W; the frequency adjustment amplitude is 0.1 to 1000 MHz; a condensation system 13 and an online detection system 16 are provided at the outlet of the quartz tube reactor 10, and the online detection system 16 is a gas chromatography-mass spectrometer.

[0051] The method for using the above-mentioned solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device comprises the following steps:

[0052] 1) Before the reaction begins, the hydrogenation catalyst is evenly arranged in the catalyst filling screen 14 of the quartz tube reactor 10, and the solid waste raw material and the biomass raw material are added to the first screw feeder 1 and the second screw feeder 5 respectively; the N2 source of the solid waste gasification module and the biomass pyrolysis module is turned on, and the N2 is purged into the gasification reactor 2, the pyrolysis reactor 6 and the quartz tube reactor 10;

[0053] 2) After the purge is completed, the first temperature control system 3 and the second temperature control system 8 are started to respectively heat the gasification reactor 2 and the pyrolysis reactor 6, and simultaneously the microwave continuous frequency modulation power supply 11 is turned on to emit microwaves with continuously changing frequencies, which enter the microwave resonant cavity 12 of the frequency modulation microwave reactor through the microwave feed port to heat the deoxygenation and hydrogenation catalyst; the temperatures of the gasification reactor 2 and the pyrolysis reactor 6 are respectively controlled by the first temperature control system 3 and the second temperature control system 8, and the temperature of the deoxygenation and hydrogenation catalyst is monitored in real time by a non-contact infrared thermometer 15. When the temperatures of the gasification reactor 2, the pyrolysis reactor 6, and the deoxygenation and hydrogenation catalyst rise to the reaction temperature, step 3 is entered;

[0054] 3) The first screw feeder 1 and the second screw feeder 5 are respectively turned on to start the solid waste gasification reaction and the biomass pyrolysis reaction; the solid waste gasification module produces products mainly composed of H2 and light olefins, which are mixed with the gaseous products of the biomass pyrolysis module in the gas mixer 9 and then enter the quartz tube reactor 10 to undergo deoxygenation and hydrogenation reactions under the action of microwaves with continuously changing frequencies;

[0055] 4) A small portion of the products generated by deoxygenation and hydrogenation is detected by an online GC / MS system, and the condensable gaseous products in the remaining portion are condensed by a condensation system 13 to obtain bio-oil, while the non-condensable gaseous products are collected in a gas collection device for subsequent analysis.

[0056] Example 2

[0057] A solid waste gasification coupled with biomass pyrolysis product gaseous hydrogenation device, such as Figure 2 The device includes a solid waste gasification module, a biomass pyrolysis module and a deoxygenation and hydrogenation module;

[0058] The solid waste gasification module includes a first screw feeder 1, a gasification reactor 2, a first temperature control system 3 and a first cyclone separator 4; the gasification reactor 2 is provided with a feed port, an air inlet and an air outlet, the feed port is provided on the side of the gasification reactor 2, the air inlet is provided at the bottom of the gasification reactor 2, and the air outlet is provided at the top of the gasification reactor 2; the first temperature control system 3 is provided with a temperature probe, and there can be multiple temperature probes; the first screw feeder 1 is connected to the feed port of the gasification reactor 2, and multiple temperature probes of the first temperature control system 3 are extended into different positions inside the gasification reactor 2, such as the feed port or the gasification reaction area, to monitor the temperature at the inlet and the gasification reaction area respectively; the air outlet of the gasification reactor 2 is connected to the first cyclone separator 4;

[0059] The biomass pyrolysis module includes a second screw feeder 5, a pyrolysis reactor 6, a second cyclone separator 7 and a second temperature control system 8; the pyrolysis reactor 6 is provided with a feed port, an air inlet and an air outlet, the feed port is provided on the side of the pyrolysis reactor 6, the air inlet is provided at the bottom of the pyrolysis reactor 6, and the air outlet is provided at the top of the pyrolysis reactor 6; the second temperature control system 8 is provided with a temperature probe, which may be multiple; the second screw feeder 5 is connected to the feed port of the pyrolysis reactor 6, and multiple temperature probes of the second temperature control system 8 are extended into different positions of the pyrolysis reactor 6 for temperature monitoring, such as extending into the air inlet and the pyrolysis reaction area, to monitor the temperature at the air inlet and the pyrolysis reaction area respectively; the air outlet of the pyrolysis reactor 6 is connected to the second cyclone separator 7; the gasification reactor 2 and the pyrolysis reactor 6 are both connected to the N2 source, and the air outlet of the first cyclone separator 4 is connected to the air inlet of the pyrolysis reactor 6;

[0060] The deoxygenation hydrogenation module includes a gas mixer 9, a quartz tube reactor 10, a microwave continuous frequency modulation power supply 11 and a microwave resonant cavity 12; the gas mixer 9 is connected to the second cyclone separator 7 and the quartz tube reactor 10, the quartz tube reactor 10 is arranged in the microwave resonant cavity 12, the quartz tube reactor 10 is provided with a catalyst filling screen 14, the microwave continuous frequency modulation power supply 11 is connected to the microwave resonant cavity 12, and the connection between the microwave continuous frequency modulation power supply 11 and the microwave resonant cavity 12 is a microwave feed port; the outlet of the quartz tube reactor 10 is provided with a condensation system 13 and an online detection system 16, the condensation system 13 is connected to a gas collecting device, and the quartz tube reactor 10 is connected to a non-contact infrared thermometer 15; the microwave continuous frequency modulation power supply 11 is composed of 4 different frequency modulation modules, the microwave emission frequency is 2.45 to 8 GHz, the output power is 200 to 500 W, and the step adjustment range of the emission frequency is 0.1 to 1000 MHz; the outlet of the quartz tube reactor 10 is provided with a condensation system 13 and an online detection system 16, and the online detection system 16 is a gas phase-mass spectrometer.

[0061] The method for coupling solid waste gasification with gaseous hydrogenation of biomass pyrolysis products using the above-mentioned device comprises the following steps:

[0062] 1) Before the reaction begins, the hydrogenation catalyst is evenly arranged in the catalyst filling screen 14 of the quartz tube reactor 10, and the solid waste raw material and the biomass raw material are added to the first screw feeder 1 and the second screw feeder 5 respectively; the N2 source of the solid waste gasification module and the biomass pyrolysis module is turned on, and the N2 is purged into the gasification reactor 2, the pyrolysis reactor 6 and the quartz tube reactor 10;

[0063] 2) After the purge is completed, the first temperature control system 3 and the second temperature control system 8 are started to respectively heat the gasification reactor 2 and the pyrolysis reactor 6, and simultaneously the microwave continuous frequency modulation power supply 11 is turned on to emit microwaves with continuously changing frequencies, which enter the microwave resonant cavity 12 of the frequency modulation microwave reactor through the microwave feed port to heat the deoxygenation and hydrogenation catalyst; the temperatures of the gasification reactor 2 and the pyrolysis reactor 6 are respectively controlled by the first temperature control system 3 and the second temperature control system 8, and the temperature of the deoxygenation and hydrogenation catalyst is monitored in real time by a non-contact infrared thermometer 15. When the temperatures of the gasification reactor 2, the pyrolysis reactor 6, and the deoxygenation and hydrogenation catalyst rise to the reaction temperature, step 3 is entered;

[0064] 3) The first and second screw feeders 1 and 5 are respectively opened to initiate the solid waste gasification reaction and the biomass pyrolysis reaction. The products of the solid waste gasification module are mainly H2 and light olefins, which pass through the first cyclone separator and enter the pyrolysis reactor 6. From the pyrolysis reactor, they enter the gas mixer 9, where they are mixed with the gaseous products of the biomass pyrolysis module. The mixture then enters the quartz tube reactor 10 and undergoes a deoxygenation and hydrogenation reaction under the action of microwaves with continuously varying frequencies.

[0065] 4) A small portion of the products generated by deoxygenation and hydrogenation is detected by an online GC / MS system, and the condensable gaseous products in the remaining portion are condensed by a condensation system 13 to obtain bio-oil, while the non-condensable gaseous products are collected in a gas collection device for subsequent analysis.

Claims

1. A solid waste gasification coupled with biomass pyrolysis product gaseous hydrogenation device, characterized in that: It includes solid waste gasification module, biomass pyrolysis module and deoxygenation hydrogenation module; The solid waste gasification module comprises a first screw feeder (1), a gasification reactor (2), a first temperature control system (3) and a first cyclone separator (4), wherein the first temperature control system (3) is provided with a temperature probe; the first screw feeder (1) is connected to the feed port of the gasification reactor (2), the temperature probe of the first temperature control system (3) extends into the interior of the gasification reactor (2), and the gas outlet of the gasification reactor (2) is connected to the first cyclone separator (4); The biomass pyrolysis module comprises a second screw feeder (5), a pyrolysis reactor (6), a second cyclone separator (7) and a second temperature control system (8), wherein the second temperature control system (8) is provided with a temperature probe; the second screw feeder (5) is connected to the feed port of the pyrolysis reactor (6), the temperature probe of the second temperature control system (8) extends into the interior of the pyrolysis reactor (6), and the gas outlet of the pyrolysis reactor (6) is connected to the second cyclone separator (7); the gasification reactor (2) and the pyrolysis reactor (6) are both connected to an N2 source; The deoxygenation hydrogenation module comprises a gas mixer (9), a quartz tube reactor (10), a microwave continuous frequency modulation power supply (11) and a microwave resonant cavity (12); the gas mixer (9) is connected to the first cyclone separator (4), the second cyclone separator (7) and the quartz tube reactor (10); the quartz tube reactor (10) is arranged in the microwave resonant cavity (12); a catalyst filling screen (14) is provided in the quartz tube reactor (10); an infrared thermometer (15) is connected to the quartz tube reactor (10); the microwave continuous frequency modulation power supply (11) is connected to the microwave resonant cavity (12); and a condensation system (13) is provided at the outlet of the quartz tube reactor (10); The microwave continuous frequency modulation power supply (11) is composed of different frequency modulation modules, the microwave emission frequency is continuously adjustable between 2.45 and 8 GHz, the output power is freely adjustable between 200 and 500 W, and the frequency adjustment range is 0.1 to 1000 MHz; An online detection system (16) is provided at the outlet of the quartz tube reactor (10), and the online detection system (16) is a gas chromatography-mass spectrometer.

2. A solid waste gasification coupled with biomass pyrolysis product gaseous hydrogenation device, characterized in that: It includes solid waste gasification module, biomass pyrolysis module and deoxygenation hydrogenation module; The solid waste gasification module comprises a first screw feeder (1), a gasification reactor (2), a first temperature control system (3) and a first cyclone separator (4); the first temperature control system (3) is provided with a temperature probe; the first screw feeder (1) is connected to the feed port of the gasification reactor (2), the temperature probe of the first temperature control system (3) extends into the interior of the gasification reactor (2), and the gas outlet of the gasification reactor (2) is connected to the first cyclone separator (4); The biomass pyrolysis module comprises a second screw feeder (5), a pyrolysis reactor (6), a second cyclone separator (7) and a second temperature control system (8), wherein the second temperature control system (8) is provided with a temperature probe; the second screw feeder (5) is connected to the feed port of the pyrolysis reactor (6), the temperature probe of the second temperature control system (8) extends into the interior of the pyrolysis reactor (6), and the air outlet of the pyrolysis reactor (6) is connected to the second cyclone separator (7); the gasification reactor (2) is connected to an N2 source, and the air outlet of the first cyclone separator (4) is connected to the air inlet of the pyrolysis reactor (6); The deoxygenation hydrogenation module comprises a gas mixer (9), a quartz tube reactor (10), a microwave continuous frequency modulation power supply (11), and a microwave resonant cavity (12); the gas mixer (9) is connected to the second cyclone separator (7) and the quartz tube reactor (10); the quartz tube reactor (10) is arranged in the microwave resonant cavity (12); a catalyst filling screen (14) is provided in the quartz tube reactor (10); the microwave continuous frequency modulation power supply (11) is connected to the microwave resonant cavity (12); a condensation system (13) is provided at the outlet of the quartz tube reactor (10), and an infrared thermometer (15) is connected to the quartz tube reactor (10); The microwave continuous frequency modulation power supply (11) is composed of different frequency modulation modules, the microwave emission frequency is continuously adjustable between 2.45 and 8 GHz, the output power is freely adjustable between 200 and 500 W, and the frequency adjustment range is 0.1 to 1000 MHz; An online detection system (16) is provided at the outlet of the quartz tube reactor (10), and the online detection system (16) is a gas chromatography-mass spectrometer.

3. The solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device according to claim 1 or 2, characterized in that: The first temperature control system (3) and the second temperature control system (8) are both provided with a plurality of temperature probes, the infrared thermometer (15) is non-contact, and the gasification reactor (2) and the pyrolysis reactor (6) are bubbling fluidized beds.

4. The solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device according to claim 1 is characterized in that: Gas flow meters are provided on the connecting pipes between the N2 source and the gasification reactor (2), and on the connecting pipes between the N2 source and the pyrolysis reactor (6).

5. The solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device according to claim 2 is characterized in that: Gas flow meters are provided on the connecting pipes between the N2 source and the gasification reactor (2), and on the connecting pipes between the first cyclone separator (4) and the pyrolysis reactor (6).

6. The method for using the solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device according to claim 1 is characterized in that: The specific steps include: 1) The hydrogenation catalyst is evenly placed in the catalyst filling screen (14), and the solid waste raw material and the biomass raw material are added to the first screw feeder (1) and the second screw feeder (5) respectively; then, the N2 source of the solid waste gasification module and the biomass pyrolysis module is turned on, and the N2 is purged into the gasification reactor (2), the pyrolysis reactor (6) and the quartz tube reactor (10); 2) After the purging is completed, the first temperature control system (3) and the second temperature control system (8) are started, and then the gasification reactor (2) and the pyrolysis reactor (6) are heated, and at the same time, the microwave continuous frequency modulation power supply (11) is turned on to heat the deoxygenation hydrogenation catalyst. When the temperature of the gasification reactor (2), the pyrolysis reactor (6) and the deoxygenation hydrogenation catalyst reaches a predetermined temperature, step 3 is entered); 3) The first screw feeder (1) and the second screw feeder (5) are turned on, and the gasification reaction and the pyrolysis reaction begin. The product of the solid waste gasification module and the gaseous product of the biomass pyrolysis module are mixed in the gas mixer (9), and then enter the quartz tube reactor (10) for deoxygenation and hydrogenation reaction; 4) After the deoxygenation and hydrogenation reaction, the products generated enter the condensation system (13), and the condensable gaseous products are condensed by the condensation system (13) to obtain bio-oil, while the non-condensable gaseous products are collected in the gas collection device for subsequent analysis.

7. The method for using the solid waste gasification coupled biomass pyrolysis product gaseous hydrogenation device according to claim 2, characterized in that: The specific steps include: 1) Before the reaction begins, the deoxidation hydrogenation catalyst is evenly placed in the catalyst filling screen (14), and the solid waste raw material and the biomass raw material are added to the first screw feeder (1) and the second screw feeder (5), respectively; the N2 source of the solid waste gasification module and the biomass pyrolysis module is turned on, and the N2 is purged into the gasification reactor (2), the pyrolysis reactor (6) and the quartz tube reactor (10); 2) After the purging is completed, the first temperature control system (3) and the second temperature control system (8) are started, and then the gasification reactor (2) and the pyrolysis reactor (6) are heated, and at the same time, the microwave continuous frequency modulation power supply (11) is turned on to heat the deoxygenation hydrogenation catalyst. When the temperature of the gasification reactor (2), the pyrolysis reactor (6) and the deoxygenation hydrogenation catalyst reaches a predetermined temperature, step 3 is entered); 3) The first screw feeder (1) and the second screw feeder (5) are respectively turned on, and the gasification reaction and the pyrolysis reaction begin. The product of the solid waste gasification module first passes through the first cyclone separator (4) and enters the pyrolysis reactor (6), and then enters the gas mixer, is mixed with the gaseous product of the biomass pyrolysis module, and then enters the quartz tube reactor (10), where a deoxygenation and hydrogenation reaction is carried out under the action of microwaves with continuously changing frequencies; 4) The products generated by deoxygenation and hydrogenation enter the condensation system (13), and the condensable gaseous products are condensed through the condensation system (13) to obtain bio-oil, while the non-condensable gaseous products are collected in a gas collection device for subsequent analysis.

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