Distributed system for preparing methanol through garbage electromagnetic cracking treatment

Abstract

The invention discloses a distributed electromagnetic cracking garbage treatment methanol preparation system, which belongs to the technical field of garbage treatment and methanol preparation, and comprises: a pretreatment unit for separating garbage metal components and inorganic components and enriching organic components; the electromagnetic cracking unit is connected with the pretreatment unit; the synthesis gas purifying and tempering unit is connected with the output end of the electromagnetic cracking unit and is used for carrying out dust removal, acid removal, desulfurization and dechlorination treatment on the synthesis gas generated by the electromagnetic cracking unit and carrying out hydrogen-carbon ratio tempering on the treated gas; the methanol synthesis unit is connected with the output end of the synthesis gas purifying and tempering unit, and the methanol synthesis unit enables the purified and tempered synthesis gas to generate catalytic reaction to generate methanol. Various kinds of garbage can be efficiently treated, metal, inorganic and organic components are separated through pretreatment, and preliminary resource recycling is achieved; and purification tempering and green hydrogen supplementing are matched, so that the quality of the synthesis gas is optimized, and the cleanliness, the conversion rate and the purity of methanol are improved.

Description

Technical Field

[0001] This invention belongs to the field of waste treatment and methanol production technology, and more specifically relates to a distributed electromagnetic pyrolysis waste treatment and methanol production system. Background Technology

[0002] With the acceleration of global urbanization and population growth, the amount of waste, including household waste and industrial organic waste, has increased dramatically. At the same time, specialized rural production also generates a large amount of waste byproducts. The treatment and resource utilization of various types of waste have become urgent environmental and resource issues. Currently, traditional waste treatment methods mainly include landfill, incineration, and conventional pyrolysis gasification, but these methods have significant limitations. Landfill disposal occupies a large amount of land resources, easily generates leachate that pollutes soil and groundwater, and releases greenhouse gases such as methane during the degradation of organic waste, exacerbating climate change. While incineration can reduce volume and weight, it easily produces toxic pollutants such as dioxins and heavy metals, has high flue gas treatment costs, and low energy recovery efficiency. Conventional pyrolysis gasification technology relies heavily on fuel combustion heating, resulting in high energy consumption, low temperature control precision, and complex product composition, making it difficult to efficiently convert into high value-added products.

[0003] Meanwhile, methanol, as an important clean fuel and chemical feedstock, is experiencing continuous market demand growth. Traditional methanol production mainly relies on natural gas reforming or coal gasification, which not only consumes fossil fuels but also generates significant carbon emissions, contradicting the "dual carbon" goals and the need for a clean energy transition.

[0004] Therefore, there is an urgent need to develop a new system that can achieve the harmless and resource-based co-processing of various types of waste and efficiently produce clean methanol. Summary of the Invention

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A distributed electromagnetic pyrolysis waste-to-methanol production system is disclosed, which establishes electromagnetic pyrolysis waste-to-methanol production systems corresponding to various waste production capacities within a certain radius area. This reduces transportation costs for various types of waste and facilitates convenient and efficient storage, transportation, and distribution of the product. The distributed electromagnetic pyrolysis waste-to-methanol production system includes: The pretreatment unit is used to crush, magnetically separate, and air-separate the waste to separate the metal and inorganic components and enrich the organic components. An electromagnetic pyrolysis unit, connected to the pretreatment unit, is used to perform multiple instantaneous high-temperature pyrolysises on the organic components separated by the pretreatment unit under the action of a specific electromagnetic field to generate syngas mainly composed of CO and H2. A syngas purification and conditioning unit is connected to the output end of the electromagnetic pyrolysis unit. It is used to perform dust removal, acid removal, desulfurization and dechlorination treatment on the syngas generated by the electromagnetic pyrolysis unit, and to condition the hydrogen-carbon ratio of the treated gas. A methanol synthesis unit is connected to the output of the syngas purification and conditioning unit. The methanol synthesis unit causes the purified and conditioned syngas to undergo a catalytic reaction to generate crude methanol, which is then purified into finished methanol of a predetermined purity.

[0006] Furthermore, the pretreatment unit includes a waste crusher and a magnetic separator arranged in sequence. The waste crusher is used to crush the waste to a preset particle size and input it into the magnetic separator. The magnetic separator separates the metal components and inorganic components in the waste and enriches the organic components.

[0007] Furthermore, the electromagnetic pyrolysis unit includes an electromagnetic pyrolysis furnace and an electromagnetic field generator installed on the furnace wall. The electromagnetic pyrolysis furnace is connected to the output end of the magnetic separator and air separator through a conveying device to receive the organic components separated by the magnetic separator and air separator. Under the action of a specific electromagnetic field generated by the electromagnetic field generator, the electromagnetic pyrolysis furnace causes the organic components to undergo multiple instantaneous high-temperature pyrolysis processes to generate syngas mainly composed of CO and H2.

[0008] Furthermore, the syngas purification and conditioning unit includes a dust collector, an acid remover, a desulfurization and dechlorination device, and a hydrogen-carbon ratio conditioning device connected in sequence. The dust collector, the acid remover, and the desulfurization and dechlorination device sequentially treat the syngas for dust removal, acid removal, desulfurization and dechlorination, and the hydrogen-carbon ratio in the syngas is adjusted by the hydrogen-carbon ratio conditioning device.

[0009] Furthermore, the syngas purification and conditioning unit also includes an integrated water electrolysis hydrogen production subunit, which is connected to the hydrogen-carbon ratio conditioning device and is used to supplement the hydrogen-carbon ratio conditioning device with "green hydrogen" to adjust the hydrogen-carbon ratio of the syngas to a preset ratio.

[0010] Furthermore, the methanol synthesis unit includes a methanol synthesis tower and a methanol purification device. The methanol synthesis tower is connected to the hydrogen-to-carbon ratio conditioning device. The purified and conditioned synthesis gas is transported to the methanol synthesis tower and undergoes a catalytic reaction to produce crude methanol. The methanol purification device is connected to the methanol synthesis tower and purifies the crude methanol synthesized by the methanol synthesis tower into finished methanol of a predetermined purity.

[0011] Furthermore, the methanol synthesis tower is equipped with a catalyst to catalyze the purified and conditioned synthesis gas to produce crude methanol; the methanol purification unit purifies the crude methanol into finished methanol of a predetermined purity through methanol distillation.

[0012] Furthermore, it also includes an energy self-sufficiency unit connected to the electromagnetic pyrolysis furnace. The electromagnetic pyrolysis furnace delivers the separated combustible gas to the energy self-sufficiency unit, which uses the combustible gas to generate electricity and delivers the generated electricity to the waste crusher, the magnetic separator, the electromagnetic pyrolysis furnace, the methanol purification unit, and the methanol synthesis tower.

[0013] Furthermore, the energy self-sufficiency unit includes a gas collection module, a gas engine connected to the gas collection module, and a generator driven by the gas engine. The gas collection module is connected to the gas outlet of the electromagnetic pyrolysis furnace to collect the combustible gas produced by the electromagnetic pyrolysis unit and transport it to the gas engine. The gas engine drives the generator to convert the combustible gas into electrical energy and supply it to the waste crusher, the magnetic separator, the electromagnetic pyrolysis furnace, the methanol synthesis tower, and the methanol purification device.

[0014] Furthermore, the waste shredder, the magnetic separator / air separator, the electromagnetic pyrolysis furnace, the methanol synthesis tower, and the methanol purification unit are all modularly designed and installed in 20-foot or 40-foot frame containers, facilitating system delivery and transportation, and rapid installation, integration, and commissioning at distributed factory sites.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention can efficiently process waste, separating metals, inorganic and organic components through pretreatment to achieve preliminary resource recovery; the electromagnetic cracking of organic components does not cause secondary pollution, and with the addition of purification conditioning and "green hydrogen", the quality of syngas is optimized, and the cleanliness, conversion rate and purity of methanol are improved.

[0016] Each function is modularly designed and installed in a standard frame container, facilitating shipping and rapid on-site installation, integration, and commissioning in distributed factories.

[0017] Meanwhile, the energy self-sufficiency unit reduces dependence on external energy sources, and the distributed layout reduces transportation costs for various types of waste and methanol products. The entire process achieves harmless and resource-based waste treatment, balancing low carbon emissions and economic efficiency, providing an efficient solution for waste disposal and methanol production. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 A schematic diagram of a distributed electromagnetic pyrolysis waste treatment system for methanol production. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1

[0022] refer to Figure 1 A distributed electromagnetic pyrolysis waste treatment system for methanol production, comprising: The pretreatment unit is used to crush, magnetically separate, and air-separate the waste to separate the metal and inorganic components and enrich the organic components. The electromagnetic pyrolysis unit is connected to the pretreatment unit and is used to perform multiple instantaneous high-temperature pyrolysis of the organic components separated from the pretreatment unit under the action of a specific electromagnetic field to generate syngas mainly composed of CO and H2. Syngas purification and conditioning unit is connected to the output end of electromagnetic pyrolysis unit. It is used to remove dust, acid, desulfurize and dechlorinate the syngas generated by electromagnetic pyrolysis unit, and to condition the hydrogen-carbon ratio of the treated gas. The methanol synthesis unit is connected to the output of the syngas purification and conditioning unit. The methanol synthesis unit causes the purified and conditioned syngas to undergo a catalytic reaction to produce crude methanol, which is then purified into finished methanol of a predetermined purity.

[0023] In this embodiment, the pretreatment unit includes a waste crusher and a magnetic separator arranged in sequence. The waste crusher is used to crush the waste to a preset particle size and input it into the magnetic separator. The magnetic separator separates the metal components and inorganic components in the waste and enriches the organic components.

[0024] In this embodiment, the electromagnetic pyrolysis unit includes an electromagnetic pyrolysis furnace and an electromagnetic field generator installed on the furnace wall. The electromagnetic pyrolysis furnace is connected to the output end of the magnetic separator and air separator through a conveying device to receive the organic components separated by the magnetic separator and air separator. Under the action of a specific electromagnetic field generated by the electromagnetic field generator, the electromagnetic pyrolysis furnace causes the organic components to undergo multiple instantaneous high-temperature pyrolysis processes to generate syngas mainly composed of CO and H2.

[0025] The pretreatment unit crushes, magnetically separates, and air-separates the waste to accurately separate metals, inorganic components, and organic components, realizing the classification and resource utilization of waste and reducing interference from impurities in subsequent processing. The electromagnetic pyrolysis unit uses a specific electromagnetic field to achieve instantaneous high-temperature pyrolysis of organic components in a closed electromagnetic pyrolysis furnace, avoiding pollutants such as dioxins produced by conventional incineration, significantly reducing the risk of secondary pollution, and achieving harmless treatment of waste.

[0026] In this embodiment, the syngas purification and conditioning unit includes a dust collector, an acid remover, a desulfurization and dechlorination device, and a hydrogen-to-carbon ratio conditioning device connected in sequence. The dust collector, acid remover, and desulfurization and dechlorination device sequentially perform dust removal, acid removal, desulfurization and dechlorination treatment on the syngas, and the hydrogen-to-carbon ratio in the syngas is adjusted by the hydrogen-to-carbon ratio conditioning device. The hydrogen-to-carbon ratio is preferably 2:1.

[0027] In this embodiment, the syngas purification and conditioning unit also includes an integrated water electrolysis hydrogen production subunit. The integrated water electrolysis hydrogen production subunit is connected to the hydrogen-carbon ratio conditioning device and is used to supplement the hydrogen-carbon ratio conditioning device with "green hydrogen" to adjust the hydrogen-carbon ratio of the syngas to a preset ratio.

[0028] The syngas purification and conditioning unit effectively removes impurities from the syngas through dust removal, acid removal, desulfurization, and dechlorination, thus preventing catalyst poisoning. Combined with the hydrogen-to-carbon ratio conditioning device and the integrated water electrolysis hydrogen production subunit to supplement "green hydrogen," the hydrogen-to-carbon ratio of the syngas can be precisely adjusted to the optimal ratio for methanol synthesis (2:1), significantly improving methanol synthesis efficiency and methanol product purity.

[0029] In this embodiment, the methanol synthesis unit includes a methanol synthesis tower and a methanol purification device. The methanol synthesis tower is connected to a hydrogen-to-carbon ratio conditioning device. The purified and conditioned synthesis gas is transported to the methanol synthesis tower and undergoes a catalytic reaction to generate crude methanol. The methanol purification device is connected to the methanol synthesis tower and purifies the crude methanol synthesized by the methanol synthesis tower into finished methanol of a predetermined purity.

[0030] The methanol synthesis tower is equipped with a catalyst to catalyze the purified and conditioned synthesis gas to produce crude methanol; the methanol purification unit purifies the crude methanol into finished methanol of a predetermined purity through methanol distillation.

[0031] The distributed electromagnetic pyrolysis waste treatment methanol production system provided in this embodiment also includes an energy self-sufficiency unit. The energy self-sufficiency unit is connected to the electromagnetic pyrolysis furnace. The electromagnetic pyrolysis furnace delivers the separated combustible gas to the energy self-sufficiency unit. The energy self-sufficiency unit uses the combustible gas to generate electricity and delivers the generated electricity to the waste crusher, magnetic separator, electromagnetic pyrolysis furnace, methanol purification unit, and methanol synthesis tower.

[0032] Specifically, the energy self-sufficiency unit includes a gas collection module, a gas engine connected to the gas collection module, and a generator driven by the gas engine. The gas collection module is connected to the gas outlet of the electromagnetic pyrolysis furnace to collect the combustible gas produced by the electromagnetic pyrolysis unit and transport it to the gas engine. The gas engine drives the generator to convert the combustible gas into electrical energy and supply it to the waste crusher, magnetic separator, electromagnetic pyrolysis furnace, methanol synthesis tower, and methanol purification unit.

[0033] The energy self-sufficiency unit generates electricity by collecting combustible gas produced by electromagnetic pyrolysis, which powers equipment such as waste crushers, electromagnetic pyrolysis furnaces, and methanol synthesis towers, reducing dependence on the external power grid and lowering operating costs. At the same time, the water electrolysis hydrogen production subunit can combine renewable energy sources (such as photovoltaic and wind power) to produce "green hydrogen," reducing fossil energy consumption and carbon emissions throughout the process, and practicing the concept of low-carbon development.

[0034] In this embodiment, the various functional modules, such as the waste crusher, magnetic separator, electromagnetic pyrolysis furnace, methanol synthesis tower, and methanol purification unit, are designed in a modular fashion and installed in a 20-foot or 40-foot frame container. This facilitates the system's delivery and transportation, and allows for rapid installation, integration, and commissioning of each functional standard module frame at the distributed factory site according to the set process flow.

[0035] This invention realizes the transformation of waste treatment from "end-of-life disposal" to "source-based resource utilization", which has multiple benefits in terms of environmental protection, energy and economy, and provides a solution for the harmless treatment of waste and the preparation of clean energy.

[0036] The technical solutions of the present invention have been fully described above. It should be noted that the specific embodiments of the present invention are not limited to the above description. All technical solutions formed by those skilled in the art based on the spirit and essence of the present invention by adopting equivalent transformations or equivalent transformations in terms of structure, method or function fall within the protection scope of the present invention.

Claims

1. A distributed electromagnetic pyrolysis waste treatment system for methanol production, characterized in that, include: The pretreatment unit is used to crush, magnetically separate, and air-separate the waste to separate the metal and inorganic components and enrich the organic components. An electromagnetic pyrolysis unit, connected to the pretreatment unit, is used to perform multiple instantaneous high-temperature pyrolysises on the organic components separated by the pretreatment unit under the action of a specific electromagnetic field to generate syngas mainly composed of CO and H2. A syngas purification and conditioning unit is connected to the output end of the electromagnetic pyrolysis unit. It is used to perform dust removal, acid removal, desulfurization and dechlorination treatment on the syngas generated by the electromagnetic pyrolysis unit, and to condition the hydrogen-carbon ratio of the treated gas. A methanol synthesis unit is connected to the output of the syngas purification and conditioning unit. The methanol synthesis unit causes the purified and conditioned syngas to undergo a catalytic reaction to generate crude methanol, which is then purified into finished methanol of a predetermined purity.

2. The distributed electromagnetic pyrolysis waste treatment system for methanol production according to claim 1, characterized in that, The pretreatment unit includes a waste crusher and a magnetic separator arranged in sequence. The waste crusher is used to crush the waste to a preset particle size and input it into the magnetic separator. The magnetic separator separates the metal components and inorganic components in the waste and enriches the organic components.

3. The distributed electromagnetic pyrolysis waste treatment system for methanol production according to claim 2, characterized in that, The electromagnetic pyrolysis unit includes an electromagnetic pyrolysis furnace and an electromagnetic field generator installed on the furnace wall. The electromagnetic pyrolysis furnace is connected to the output end of the magnetic separator and air separator through a conveying device to receive the organic components separated by the magnetic separator and air separator. Under the action of a specific electromagnetic field generated by the electromagnetic field generator, the electromagnetic pyrolysis furnace causes the organic components to undergo multiple instantaneous high-temperature pyrolysis processes to generate syngas mainly composed of CO and H2.

4. The distributed electromagnetic pyrolysis waste treatment system for methanol production according to claim 3, characterized in that, The syngas purification and conditioning unit includes a dust collector, an acid remover, a desulfurization and dechlorination device, and a hydrogen-carbon ratio conditioning device connected in sequence. The dust collector, the acid remover, and the desulfurization and dechlorination device sequentially treat the syngas for dust removal, acid removal, desulfurization and dechlorination, and the hydrogen-carbon ratio in the syngas is adjusted by the hydrogen-carbon ratio conditioning device.

5. The distributed electromagnetic pyrolysis waste treatment system for methanol production according to claim 4, characterized in that, The syngas purification and conditioning unit also includes an integrated water electrolysis hydrogen production subunit, which is connected to the hydrogen-carbon ratio conditioning device and is used to supplement the hydrogen-carbon ratio conditioning device with "green hydrogen" to adjust the hydrogen-carbon ratio of the syngas to a preset ratio.

6. The distributed electromagnetic pyrolysis waste treatment system for methanol production according to claim 5, characterized in that, The methanol synthesis unit includes a methanol synthesis tower and a methanol purification unit. The methanol synthesis tower is connected to the hydrogen-to-carbon ratio conditioning unit. The purified and conditioned synthesis gas is transported to the methanol synthesis tower and undergoes a catalytic reaction to produce crude methanol. The methanol purification unit is connected to the methanol synthesis tower and purifies the crude methanol synthesized by the methanol synthesis tower into finished methanol of a predetermined purity.

7. The distributed electromagnetic pyrolysis waste treatment system for methanol production according to claim 6, characterized in that, The methanol synthesis tower is equipped with a catalyst to catalyze the purified and conditioned synthesis gas to produce crude methanol; the methanol purification unit purifies the crude methanol into finished methanol of a predetermined purity through methanol distillation.

8. The distributed electromagnetic pyrolysis waste treatment system for methanol production according to claim 6, characterized in that, It also includes an energy self-sufficiency unit, which is connected to the electromagnetic pyrolysis furnace. The electromagnetic pyrolysis furnace delivers the separated combustible gas to the energy self-sufficiency unit, which uses the combustible gas to generate electricity and delivers the generated electricity to the waste crusher, the magnetic separator, the electromagnetic pyrolysis furnace, the methanol purification unit, and the methanol synthesis tower.

9. The distributed electromagnetic pyrolysis waste treatment system for methanol production according to claim 8, characterized in that, The energy self-sufficiency unit includes a gas collection module, a gas engine connected to the gas collection module, and a generator driven by the gas engine. The gas collection module is connected to the gas outlet of the electromagnetic pyrolysis furnace to collect the combustible gas produced by the electromagnetic pyrolysis unit and transport it to the gas engine. The gas engine drives the generator to convert the combustible gas into electrical energy and supply it to the waste crusher, the magnetic separator, the electromagnetic pyrolysis furnace, the methanol synthesis tower, and the methanol purification device.

10. The distributed electromagnetic pyrolysis waste treatment methanol production system according to claim 9, wherein the waste crusher, the magnetic separator / air separator, the electromagnetic pyrolysis furnace, the methanol synthesis tower, and the methanol purification device are all modularly designed and installed in 20-foot or 40-foot frame containers, facilitating system delivery and transportation and rapid installation, integration, and commissioning at the distributed plant site.

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