CN-122012149-A - Process method for preparing alkane gas by coupling biomass anaerobic pyrolysis gasification with high-frequency electromagnetic field

Abstract

The invention discloses a process method for preparing alkane gas by coupling high-frequency electromagnetic field through biomass anaerobic pyrolysis gasification, which relates to the technical field of organic solid waste recycling treatment and comprises the following steps of feeding biomass raw materials into a reaction device formed by austenitic alloy materials, and forming a high-frequency photon energy field in the reaction device; the invention adopts high-frequency electromagnetism to directly heat the alloy kiln body, has small heat loss and strong energy targeting, avoids the energy waste of integral overheating, can realize selective bond breaking and free radical directional recombination by regulating and controlling the parameters of the light quantum energy field, omits expensive catalysts and regeneration and treatment links thereof, and has continuous treatment process and easy realization of industrialized amplification.

Inventors

• QIN WEIZHI
• ZHANG ZE
• YU BIN

Assignees

• 秦伟志
• 张泽
• 余斌

Dates

Publication Date

20260512

Application Date

20251222

Claims (7)

1. 1. A process method for preparing alkane gas by coupling biomass anaerobic pyrolysis gasification with high-frequency electromagnetic field is characterized by comprising the following steps: a) Under the anaerobic environment, feeding biomass raw materials into a reaction device, wherein the reaction device is at least partially composed of an austenitic alloy material which can be heated and excited to emit light quanta under the action of a high-frequency electromagnetic field; b) Induction heating is carried out on the austenitic alloy material part through a high-frequency electromagnetic generator, so that the austenitic alloy material reaches and maintains a preset high-temperature working temperature; c) Under the high-temperature working temperature, the austenitic alloy material releases high-energy hot electrons, high-energy photons are released when the hot electrons return, and a high-frequency photon energy field is formed inside the reaction device; d) Irradiating the biomass raw material by using the high-frequency light quantum energy field to enable biomass macromolecules to absorb light quantum energy to transition from a ground state to an excited state, and breaking molecular bonds to generate various free radicals; e) Controlling the energy density and frequency of the high-frequency light quantum energy field to enable the free radicals to recombine through a roaming chemical reaction mechanism to generate an alkane gas product containing methane and non-methane total hydrocarbons; f) The alkane gas products are collected and separated.
2. 2. The process for preparing alkane gas by coupling high-frequency electromagnetic field through biomass anaerobic pyrolysis gasification according to claim 1, wherein the austenitic alloy material comprises at least two of nickel, chromium, manganese and nitrogen elements, and has stable thermionic emission and light quantum radiation characteristics in a temperature range of 400-1200 ℃ after being treated by a special heat treatment process.
3. 3. The process for preparing alkane gas by coupling high-frequency electromagnetic field through anaerobic pyrolysis gasification of biomass according to claim 1 or 2, wherein the working frequency range of the high-frequency electromagnetic generator is 50 khz-500 khz, and the power adjustable range is 10 kw-1000 kw, which is used for controlling the heating rate and the final temperature of the austenitic alloy material.
4. 4. The process for preparing alkane gas by coupling high-frequency electromagnetic field through anaerobic pyrolysis gasification of biomass according to claim 1, wherein the reaction device is of a rotary kiln structure, the whole kiln body is made of austenitic alloy material, or a lifting plate and a guide vane made of austenitic alloy material are arranged in the kiln body, and the rotary kiln keeps rotating in the anaerobic pyrolysis gasification process of biomass, so that biomass raw materials are continuously and uniformly stirred and exposed to the high-frequency light quantum energy field.
5. 5. The process for preparing alkane gas by coupling high-frequency electromagnetic field through anaerobic pyrolysis gasification of biomass according to claim 1, wherein the preset high-temperature working temperature range in the step b) is 500-900 ℃, and the accurate control of the high-temperature working temperature is realized by adjusting the output power of a high-frequency electromagnetic generator and/or the biomass feeding rate of a reaction device.
6. 6. A system for implementing the process of any one of claims 1-5, comprising: A reaction device, at least the inner surface or critical radiating element in contact with the biomass feedstock, made of said austenitic alloy material; The high-frequency electromagnetic induction heating coil is arranged around the outside or a specific part of the reaction device and is electrically connected with the high-frequency electromagnetic generator; A feed system for continuously or intermittently feeding biomass feedstock to the reaction device; An anaerobic environment protection system for maintaining an anaerobic atmosphere inside the reaction apparatus; The temperature monitoring and controlling system is used for monitoring the temperature in the reaction device in real time and feeding back and adjusting the output power of the high-frequency electromagnetic generator; And the product collecting and separating system is used for collecting the alkane gas discharged from the reaction device and cooling, separating and purifying the alkane gas.
7. 7. The system according to claim 6, wherein the reaction device is a horizontal rotary kiln, a cylinder of which is made of the austenitic alloy material, or a material lifting member made of the austenitic alloy material is fixedly arranged inside the horizontal rotary kiln.

Description

Process method for preparing alkane gas by coupling biomass anaerobic pyrolysis gasification with high-frequency electromagnetic field Technical Field The invention relates to the technical fields of organic solid waste recycling treatment and energy chemical industry, in particular to a process method for preparing alkane gas by coupling a high-frequency electromagnetic field through biomass anaerobic pyrolysis gasification. Background Along with the increase of global energy demand and environmental protection pressure, the conversion of biomass into clean fuels with high added value (such as methane) has become a research hot spot, and the traditional pyrolysis technology mainly relies on an external heat source conduction, convection or radiation mode to provide heat energy, so that organic matters are cracked, however, the method generally has the problems of low heat efficiency, uneven heating, slow reaction rate, easy coking, catalyst requirement (often causing catalyst deactivation and secondary pollution) and the like. In the prior art, as in the chinese patent with publication number CN112639058B, a continuous operation method for cracking solid materials containing organic matters by microwave high temperature is disclosed, which adopts microwave heating technology for cracking organic matters, and uses dielectric loss to heat materials, but the microwave heating depth is limited, specific requirements are made on dielectric properties of materials, and the energy field is mainly in the form of heat energy, so that the control capability for selective bond breaking and directional synthesis is weak. Therefore, a novel cracking technology which is efficient, energy-saving, does not need a catalyst and can realize directional regulation and control of products is developed, and the method has important significance for promoting the recycling utilization of organic solid wastes. Disclosure of Invention The invention aims to provide a process method for preparing alkane gas by coupling high-frequency electromagnetic field through biomass anaerobic pyrolysis gasification, which aims to solve the problems in the prior art. According to a first aspect, the embodiment of the invention provides a process method for preparing alkane gas by coupling a biomass anaerobic pyrolysis gasification coupling high-frequency electromagnetic field, which comprises the following steps: a) The pretreated biomass raw material is continuously or intermittently fed into the reaction device, and the reaction device is at least partially composed of an austenitic alloy material which can be heated and excited to emit light quanta radiation under the action of a high-frequency electromagnetic field; b) Starting a high-frequency electromagnetic generator, and carrying out induction heating on the austenitic alloy material part through an induction heating coil encircling the outside of the reaction device, so that the austenitic alloy material reaches and maintains a preset high-temperature working temperature; c) When the hot electrons return to the ground state from the excited state, energy is released in a high-energy light quantum form, a uniformly distributed high-frequency light quantum energy field is formed in the reaction device, and the energy range of the light quantum is matched with the chemical bond energy of biomass macromolecules; d) The biomass raw material is directionally irradiated by utilizing the high-frequency light quantum energy field, and after the biomass macromolecule absorbs the light quantum energy, the biomass macromolecule transits to an excited state from a ground state, and chemical bonds in the molecule are selectively broken to generate various active free radicals such as hydrogen free radicals (seed H), methyl free radicals (seed CH 3), methylene free radicals (CH 2) and the like; e) The energy density and the frequency of a high-frequency light quantum energy field are precisely controlled by adjusting the power and the frequency of a high-frequency electromagnetic generator, so that the active free radicals are directionally recombined through a roaming chemical reaction mechanism under the constraint of the energy field, the generation of byproducts such as tar, coke and the like is inhibited, and alkane gas products such as methane, ethane, propane and the like are preferentially formed; f) And (3) conveying the alkane gas product discharged from the reaction device into a cooler, a gas-liquid separator and an adsorption tower in sequence, and finally obtaining the high-purity alkane gas mixture. The process method provided by the embodiment of the invention realizes the selective cracking and the directional recombination of free radicals of biomass macromolecules by utilizing a high-frequency photon energy field through the innovative mode of anaerobic pyrolysis gasification and high-frequency electromagnetic field coupling, solves the problems of complex products and low alkane se