Process for sorting and primary production of c4 plants for subsequent production
The process for sorting and primary production of C4 plants enhances the properties and efficiency of raw materials and products through harvesting, sorting, primary production, and transportation, ensuring optimal conditions for subsequent processes.
Patent Information
- Application Number
- PCT/TH2025/050037
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-10-10
- Filing Date
- 2025-09-05
- Publication Date
- 2026-04-16
AI Technical Summary
Existing processes for the management and primary production of C4 plants do not effectively ensure that the raw materials and products obtained possess the most appropriate properties and highest efficiency before entering subsequent production stages.
A process involving harvesting, sorting, primary production, and transportation of C4 plants, incorporating an energy management system and energy efficiency enhancement system, to manage and enhance the properties and efficiency of raw materials and products.
Ensures that the raw materials and products from C4 plants have optimal properties and efficiency, maximizing energy recovery and utilization, and preparing them for subsequent processes.
Smart Images

Figure TH2025050037_16042026_PF_FP_ABST
Abstract
Description
[0001] Process for Sorting and Primary Production of C4 Plants for Subsequent Production
[0002] Technical field of the invention
[0003] The present invention relates to the process for sorting and primary production of C4 plants for subsequent production.
[0004] Background art
[0005] C4 plants are plants originating in equatorial regions, such as maize, sugarcane, sorghum, and this group of plants has a distinct internal leaf structure (Kranz Anatomy), characterized by bundle-sheath cells (BS) that contain chloroplasts surrounding vascular bundles or what are called veins. Next to the bundle-sheath cells (BS) are mesophyll cells (M).
[0006] C4 plants have a photosynthesis system that fixes carbon dioxide (CO2) twice. The first fixation of carbon dioxide (CO2) from the air enters through the stomata, which fixes carbon dioxide (CO2) by combining with phosphoenolpyruvate (PEP) by using the enzyme phosphoenolpyruvate carboxykinase (PEPC), resulting in a compound having four carbon (C) atoms, namely oxaloacetic acid (OAA), which is subsequently converted to malate (MA). Then, carbon dioxide (CO2) is released from the malate (MA) molecule and is fixed again for the second time by combining with RubP to enter the Calvin cycle, similar to the photosynthesis system of C3 plants.
[0007] In addition, C4 plants have special properties that enable them to grow well in arid environments as they are plants with the C4 photosynthesis pathway which is efficient, and easy to cultivate using seeds, have a short growth cycle (3-4 months), are resistant to high-temperature conditions and tolerate poor soil quality. Therefore, C4 plants are used as raw materials for many products.
[0008] The invention of the process for sorting and primary production of C4 plants for subsequent production is provided to comprise harvesting, sorting, primary production, and transportation to obtain two or more types of raw materials and / or products from the process according to the invention, wherein the raw materials and / or products obtained from the process according to the invention are made to have the most appropriate properties and highest efficiency before entering the subsequent process. Summary of the invention
[0009] The process for sorting and primary production of C4 plants for subsequent production according to the invention, entails the management, preparation, and primary production of C4 plants, inclusive of suitable transportation system oversight. This process aims to procure raw materials and / or products in two or more varieties, ensuring that the resulting materials and / or products possess the most suitable properties and optimal efficiency as prescribed, prior to proceeding to subsequent stages.
[0010] By the invention of the process for sorting and primary production of C4 plants for subsequent use, it is provided to comprise harvesting, sorting, primary production, and transportation, wherein it incorporates an energy management system and an energy efficiency enhancement system.
[0011] Brief description of the drawings
[0012] FIG. 1 illustrates the steps of the process for sorting and primary production of C4 plants for subsequent use, in one embodiment of the invention.
[0013] FIG. 2 illustrates the characteristics of the sorting step in the C4 plant and one embodiment of the primary production step according to the invention.
[0014] FIG. 3 illustrates the primary production step of the bagasse, one embodiment of the invention.
[0015] FIG. 4 illustrates an example of energy efficiency improvement and energy management, wherein cooperation is provided between a combustion process and a residue separation process, in one embodiment of the invention.
[0016] Detailed description of the invention
[0017] The invention, as described below, is a detailed description by reference to the drawings. However, the invention may be provided in other configurations. It shall not be construed as being limited only to the prescribed drawings, which are prepared for the purpose of clarity of the disclosure of the invention to be explicit and complete, so that a person of ordinary skill in the relevant art may fully understand.
[0018] The process for sorting and primary production of C4 plants for subsequent production according to the invention is the process for management, preparation, and primary production of C4 plants, including appropriate transportation system management, to obtain raw materials and products from the process according to the invention in two or more types, wherein the raw materials and products obtained from the process according to the invention are made to have the most appropriate properties and highest efficiency as prescribed before entering the subsequent process.
[0019] The C4 plants are plants originating in the equatorial zone, and this group of plants has a distinct internal leaf structure (Kranz Anatomy), characterized by bundlesheath cells (BS) that contain chloroplasts surrounding vascular bundles or so-called veins. Next to the bundle-sheath cells (BS) are mesophyll cells (M), wherein the Calvin cycle of the C4 plant occurs inside the bundle-sheath cells (BS). The carbon dioxide gas fed into the Calvin cycle is derived from molecular transformation of organic substances in the mesophyll cells (Mesophyll: M), wherein the concentration of the carbon dioxide gas released in the area of the bundle-sheath cells (BS) has a high concentration compared with the concentration of oxygen present inside the cells, making the oxygen fixation reaction by RubP occur less. Therefore, the C4 plant has carbon atom loss from the photorespiration process at a very low level, to the extent that it is not measurable under normal conditions.
[0020] The C4 plants comprise sorghum, corn, sugarcane, barley, globe amaranth, Bermuda grass, nutgrass, and Chinese amaranth, which are plants capable of growing well in arid environments, high temperatures, and poor soil quality, including those with a short life cycle.
[0021] The process for sorting and primary production of C4 plants for subsequent production according to the invention comprises a harvesting step, a sorting step, a primary production step, and a transportation step, as shown in FIG. 1.
[0022] The harvesting step is the provision of harvesting of C4 plants by a mechanical method using a machine, tool, or equipment for harvesting for harvesting of C4 plants. It is prescribed to harvest C4 plants at an age of 80-135 days and the grains of the C4 plant having a hard texture, dryness, and a stable colour in accordance with the species, wherein it is provided to use a machine, tool, or equipment for preventing loss or damage of the grain part, or the harvesting method by traditional method or otherwise, wherein it enables separation of parts of the C4 plant from roots and soil. The parts of the C4 plant are introduced into the sorting step or a subsequent step or the transportation step.
[0023] The sorting step is the provision of sorting of parts of the C4 plant obtained from the harvesting step or the preceding step as shown in FIG. 2, by sorting ears or panicles and stalks from each other by cutting using a machine, tool, or other cutting equipment or equipment integrated with a sickle or a knife.
[0024] Wherein the ears or panicles are subjected to sorting of the grains of the C4 plant from the ears or panicles using a machine, tool, or mechanical equipment to separate the grain parts from the ears or panicles, and then separating the grains of the C4 plant from the shells or skins by threshing using a machine, tool, or threshing equipment, or by beating to winnow the grains of the C4 plant from the ears or panicles, wherein the grains of the C4 plant and the shells or skins are introduced into the primary production or transportation steps.
[0025] Wherein the stalks are subjected to separation of bagasse and sap by a mechanical process, pressing, squeezing, compacting, extruding, centrifuging, or by using a specifically designed machine having ability to separate bagasse and sap from each other either individually or together, resulting in obtaining bagasse in an amount of 60-80% and sap in an amount of 20-40%, wherein the bagasse and sap are introduced into the primary production step or the transportation step. The stalks may be introduced into the primary production step or the transportation step.
[0026] Primary Production Step
[0027] The primary production step involves generating primary products from various methods using grains of the C4 plant, as well as bagasse, sap, and stalks obtained from the sorting step or the previous step, with the methods outlined as follows:
[0028] - Primary Production Step of the Grains of the C4 Plant
[0029] Bringing the grains of the C4 plant obtained from the sorting step or the preceding step to be subjected to separation of the shells from the grains by threshing using a machine, tool, or threshing equipment, and sieving to sieve out the shells and other adhering residues from the grains, wherein it is prescribed that the grains must have a moisture content of less than 5% by applying heat for 48 hours at a temperature of 50-60°C to preserve long shelflife and prevent seed rot and mold, wherein the grains are provided to be used as raw materials for producing other products, including raw materials for producing enzyme-resistant starch flour (Flour RS), ready-to-cook food, ready-to-eat food, or any other products to be used in the production of savory food, desserts, or beverages, and the shells / skins are also provided as raw materials for producing pharmaceutical products.
[0030] Primary Production Step of the Bagasse Subjecting the bagasse obtained from the sorting step or the preceding step to a moisture reduction process and moisture improvement to achieve a bagasse moisture content of 5%-40% before entering the subsequent production process, wherein the bagasse can be used to produce biomass, bio-coal / bio-fuel, lignin, nano cellulose, biobased carbon material (biobased battery), and syngas.
[0031] The moisture reduction of the bagasse in the primary production step of the bagasse is by energy exchange within the system continuously according to the invention, which comprises: a preparation process, a dewatering process, a drying process, a combustion process, and a residue separation process, Within the process, an energy efficiency enhancement system and an energy management system are installed concurrently to effectively manage and exchange energy during the primary production stage of bagasse. This setup is designed to operate as a continuous process, thereby maximising energy recovery and utilisation possible, as shown in FIG. 3.
[0032] ■ Preparation process: A process for preparing the bagasse to enter a size reduction process by cutting or chopping or by any one or more methods, to obtain bagasse of a smaller size or a predetermined size, and
[0033] ■ Dewatering process: A process to reduce the moisture content within the bagasse from the preparation process or the preceding step, wherein the moisture content is more than 60%, and it is prescribed that the moisture content be reduced by compression and pressing, which is applying physical force controlled through a compact screw for compression and pressing, and conveying the raw materials by a compact screw, and applying physical force controlled through springs by passing through rolls for pressing, to make the bagasse after compression by the compact screw have a moisture content of less than 40%, and
[0034] ■ Drying process: A process to reduce the moisture content within the bagasse from the dewatering process or the preceding step, using hot air (air dryer) or tools having capability for reducing liquid content and moisture content, or a solar dome drying system, flash dryer or pneumatic dryer, steam dryer, superheated steam dryer (SHS), multi heat pump evaporator, or mechanical vapor recompression (MVR) evaporator, to reduce the moisture content within the bagasse to less than 20%, and
[0035] ■ Combustion process is a process for reducing the moisture content within the bagasse from the drying process or the preceding step, which possesses the capability to enhance properties such as moisture content, temperature, heat value, volatilization, fixed carbon ratio, and energy density per volume through thermochemical processes including combustion with oxygen, combustion without oxygen, pyrolysis, gasification, or any similar process nature, wherein the moisture content within the bagasse is reduced using a temperature of more than 300°C for a predetermined period, wherein time, gas pressure, and amount of oxygen are controlled, etc., to reduce the moisture content to an amount of 5-10%; and
[0036] ■ Residue separation process is a process for separating the bagasse obtained after the combustion process, which contains residue or is mixed with syngas produced from the combustion process, separate from one another, wherein the bagasse obtained after removing the residue process, the residue obtained is the product from the process, and the syngas that is separated is introduced into a furnace and an energy source, which is installed within the energy management system or the energy efficiency enhancement system, for use as fuel to drive the energy source further; and
[0037] ■ Energy management system functions to drive the energy source, which is equipment for converting energy in the form of mechanical energy or fuel energy or any kind of renewable energy into energy in the form of electrical energy, for bringing the generated energy back as initial fuel for electricity generation within the drying process and the combustion process further; and
[0038] ■ Energy efficiency enhancement system functions to recover energy from outside air that enters the furnace and exchanges the flue gas exiting the combustion process, delivering it to other processes further.
[0039] FIG. 4 shows an example of energy efficiency improvement and energy management, which works together between the combustion process and the residue separation process, wherein the energy source within the energy management system receives energy from the syngas that is separated from the residue separation process continuously, wherein the energy source transmits electrical energy to the heat exchanger equipment to deliver thermal energy to the drying process, and the remaining energy will be delivered to the combustion process further. Moreover, energy from the exhaust pipe of the energy source can be delivered directly to the combustion process.
[0040] The raw materials / products of the C4 plants, obtained from the raw material preparation process, the dewatering process, the drying process, the combustion process, or the residue separation process, can be introduced into the transportation step or the subsequent process.
[0041] The moisture improvement of the bagasse in primary production step of the bagasse is bringing the bagasse into moisture improvement to be within a range of 35- 50 percent, by means of dewatering process and / or drying process under predetermined time conditions, and performing density increase by mechanical force process, to make the condition suitable for the production of syngas, pyrolysis oil or bio-crude oil, synthetic natural gas (SNG), and hydrogen, wherein the syngas obtained from the process can be introduced into the transportation step or a subsequent process
[0042] - The primary production step of the sap or the concentration adjustment of the sap
[0043] The sap obtained from the sorting step or the preceding step into the concentration adjustment process of the sap to be suitable for use in the production of food products and fermentation, and for the production of energy products, wherein sap includes liquid nourishing inside the stalks of the plant, which may contain sugar as a main component.
[0044] The concentration adjustment of the sap for food and fermentation products and energy products is bringing the sap obtained from the dewatering process of the sorting step or the preceding step to cause evaporation of water mixed in the sap, to increase the concentration of the sap and to purify the sap, by heating, such as vacuum evaporation, reverse osmosis, and any other heating method that can cause evaporation of the sap, and separating precipitates or fine insoluble solids in the sap by membrane filtration, centrifugal separation, spray drying, and freeze drying, to make the sap have sugar concentration within a range of 70-80 percent Brix, and performing sterilisation of bacteria or microorganisms by pasteurisation, and it is stored under a suitable temperature to maintain quality and freshness of the sap
[0045] - The primary production step of the stalks, or the pretreatment of the stalks
[0046] The stalks obtained from the sorting step or the preceding step are introduced into the pretreatment process, wherein the stalks of C4 plants used are prescribed to be cultivated under a single or mono-cropping system, in which the carbohydrate fiber content comprising cellulose and hemicellulose is in an amount of 50-80% of dry biomass, wherein pretreatment includes size reduction of the stalks by cutting, chopping, or by one or more of any methods, to obtain stalks of smaller size or size as prescribed, and / or pretreatment by pressing, compacting, or extruding, or using a specially designed machine capable of separating sap from the stalks, to obtain stalks having moisture content and size as prescribed, to prepare the condition suitable for the production of bio-gas and other products, whereby the products obtained after pretreatment of the stalks can be introduced into the transportation step or a subsequent process.
[0047] The transportation step is the provision of management of a transportation system of the ears or panicles, the grains of the C4 plant, the shells / skins, the stalks, the bagasse, and the sap, including the raw materials / products of the C4 plant obtained from the harvesting step, the sorting step, the primary production step, or from any one of the steps appropriately as prescribed, to cause efficiency of the ears or panicles, the grains of the C4 plant, the shells / skins, the stalks, the bagasse, and the sap, including the raw materials / products of the C4 plant obtained from the process according to the invention or any one process, wherein it is characterized in that the transportation is carried out to be delivered to a place selected from a farm, a primary production source, a distribution center, to a destination or production site, for entering the subsequent production.
[0048] Farm means a place provided for planting of the C4 plant, including farms, plantations, paddy fields, orchards, cultivation places, and any other place that is capable of planting the C4 plant.
[0049] A primary production source refers to a location designated for the harvesting step, the sorting step, the primary production step, or any combination of these steps, which is capable of transforming raw materials and / or products into two or more types.
[0050] Distribution center means a place provided for management and distribution of raw materials and / or products from the harvesting step, the sorting step, the primary production step, or any one of the steps, which is provided to include distribution center, warehouse, and any other place that can receive, store, and distribute / deliver products.
[0051] Production site means a place provided for introducing raw materials and / or products obtained from the harvesting step, the sorting step, the primary production step, or any one of the steps into the subsequent production, which is provided to include production site, manufacturing factory, factory, customer, customer group, and any other place capable of producing any other product.
[0052] A destination for entering the subsequent production is provided to include the primary production source, the distribution centre, and the production site.
[0053] Any modifications or changes in accordance with this invention may be clearly understood and can be performed by persons skilled in the art. Such modifications may fall within the scope and spirit of this invention as shown in the attached claims. Best Mode for Carrying Out the Invention
[0054] As previously described in the section of detailed description of the invention.
Claims
CLAIMS1. A process for sorting and primary production of C4 plants for subsequent production, according to the invention, is a process for the management, preparation, and primary production of C4 plants, including the management of an appropriate transportation system, in order to obtain two or more types of raw materials and products from the process according to the invention, wherein the raw materials and products obtained from the process according to the invention are made to have the most appropriate properties and efficiency as prescribed, before entering the subsequent process,The process for sorting and primary production of C4 plants for subsequent production comprises: a harvesting step, a sorting step, a primary production step, and a transportation step.Wherein it is characterized in that:The harvesting step is the provision of harvesting of C4 plants by a mechanical method using a machine, tool, or equipment for harvesting C4 plants, and is prescribed to harvest C4 plants at an age of 80-135 days and grains of the C4 plants having a hard texture, dryness, and a stable colour in accordance with the species, wherein it enables separation of parts of the C4 plant from roots and soil, and the parts of the C4 plant are introduced into the sorting step or a subsequent step or the transportation step;The sorting step is the provision of sorting the parts of the C4 plant obtained from the harvesting step or the preceding step by sorting ears or panicles and stalks from each other by cutting with a machine, tool, or other cutting equipment or equipment integrated with a sickle or knife, wherein:- the ears or panicles are subjected to sorting of the C4 plant grains from the ears or panicles by using a machine, tool, or mechanical equipment to separate the grain parts from the ears or panicles, and then separating the C4 plant grains from the shells / skins by threshing with a machine, tool, or threshing equipment or by beating to winnow the C4 plant grains from the ears or panicles, and the C4 plant grains and shells / skins are introduced into the primary production step or a subsequent step or the transportation step; and- the stalks are subjected to separation of bagasse and sap by a mechanical process of pressing, squeezing, compacting, extruding, centrifuging, or by using a specifically designed machine capable of separating bagasse and sap, eitherindividually or together, and the bagasse and sap are introduced into the primary production step or the transportation step, wherein the stalks may be introduced into the primary production step or a subsequent step or the transportation step; the primary production step is the provision of primary production by various methods of the grains of the C4 plant, the bagasse, the sap, and the stalks obtained from the sorting step or the preceding step, comprising: a primary production step of the grains of the C4 plant, a primary production step of the bagasse, a primary production step of the sap or concentration adjustment of the sap, and a primary production step of the stalks or pretreatment of the stalks, wherein the raw materials / products of the C4 plant obtained from the primary production process are introduced into the subsequent step or the transportation step; the transportation step is the provision of management of a transportation system of the ears or panicles, the grains of the C4 plant, the shells / skins, the stalks, the bagasse, the sap, including the raw materials / products of the C4 plant obtained from the harvesting step, the sorting step, the primary production step, or from any one of the steps appropriately, to ensure optimal efficiency as prescribed for entering the subsequent production.
2. The process for sorting and primary production of C4 plants for subsequent production according to claim 1, wherein in the sorting step, the stalks are subjected to separation of bagasse and sap, resulting in obtaining bagasse in an amount of 60-80% and sap in an amount of 20-40%.
3. The process for sorting and primary production of C4 plants for subsequent production according to claim 1, wherein the primary production step comprises: a primary production step of the grains of the C4 plant, a primary production step of the bagasse, a primary production step of the sap or concentration adjustment of the sap, and a primary production step of the stalks or pretreatment.
4. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 3, wherein the primary production step of the grains of the C4 plant is bringing the grains of the C4 plant obtained from the sorting step or the preceding step to be subjected to separation of the shells from the grains by threshing using a machine, tool, or threshing equipment, and sieving to sieve out the shells and other adhering residues from the grains, wherein the grains are prescribed to have a moisture content of less than 5%.
5. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 3, wherein the primary production step of the bagasse is to subject the bagasse obtained from the sorting step or the preceding step to a moisture reduction process and moisture improvement to achieve a bagasse moisture content of 5%-40% before entering the subsequent production process, wherein the bagasse can be used to produce biomass, bio-coal / bio-fuel, lignin, nano cellulose, biobased carbon material (biobased battery), and syngas.
6. The process for sorting and primary production of C4 plants for subsequent production according to claim 5, wherein the moisture reduction process of the bagasse in the primary production step of the bagasse comprising a preparation process, a dewatering process, a drying process, a combustion process, and a residue separation process, wherein within the process, an energy efficiency enhancement system and an energy management system are installed together to function in managing and exchanging energy occurring within the primary production step of the bagasse to occur as a continuous process and to achieve energy recovery.
7. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 5 or 6, wherein the preparation process is a process of preparing the bagasse to obtain bagasse with a smaller size or a size as prescribed, wherein it can be performed by cutting or chopping or by one or more methods.
8. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 5 or 6, wherein the dewatering process is a process of reducing the moisture content in the bagasse from the preparation process or the preceding step, wherein the bagasse has a moisture content of more than 60%, the moisture content is reduced by compressing and pressing so that the bagasse has an internal moisture content of less than 40%.
9. The process for sorting and primary production of C4 plants for subsequent production according to claim 8, wherein the compressing and pressing of the dewatering process can be performed by applying physical force controlled through a compact screw, wherein it is prescribed to be performed through rolls to press the bagasse that has been compressed by the compact screw and by any other method having similar characteristics.
10. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 5 or 6, wherein the drying process is a processof reducing the moisture content in the bagasse from the dewatering process or the preceding step by using hot air (air dryer), wherein the moisture content inside the bagasse is reduced to less than 20%.
11. The process for sorting and primary production of C4 plants for subsequent production according to claim 10, wherein the reduction of moisture content inside the bagasse by drying can be performed using an air dryer, solar dome drying system, flash dryer or pneumatic dryer, steam dryer, superheated steam dryer (SHS), multi heat pump evaporator, or mechanical vapor recompression (MVR) evaporator.
12. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 5 or 6, wherein the combustion process is a process of reducing the moisture content inside the bagasse from the drying process or the preceding step, wherein the process has the ability to improve properties including moisture level, temperature, calorific value, volatility, fixed carbon ratio, and energy density per volume, through a thermochemical process by combustion using oxygen or combustion, or combustion without oxygen or pyrolysis, or gasification, or any similar process, wherein the moisture inside the bagasse is reduced by heating at a temperature of more than 300°C for a prescribed period, with control of time, gas pressure, and oxygen amount, to reduce the moisture content to 5-10%.
13. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 5 or 6, wherein the residue separation process is a process for separating the bagasse obtained after the combustion process that remains or mixes with the syngas generated from the combustion process, wherein the bagasse obtained after the residue separation process is the residue product from the process, and the separated syngas is fed into a furnace and energy generation source installed within an energy management system or an energy efficiency enhancement system for use as fuel to drive the energy generation source further.
14. The process for sorting and primary production of C4 plants for subsequent production according to claim 13, wherein the energy management system functions to drive the energy generation source, wherein the energy generation source is equipment for converting mechanical energy, fuel energy, or any renewable energy into electrical energy, to recover the generated energy as the initial fuel for electricity generation in the drying process and the combustion process.
15. The process for sorting and primary production of C4 plants for subsequent production according to claim 13, wherein the energy efficiency enhancement systemfunctions to recover energy between the external air introduced into the furnace and the exchange of flue gas discharged from the combustion process to be delivered to other processes.
16. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 6, wherein the raw materials / products of the C4 plant obtained from the preparation process, or the dewatering process, or the drying process, or the combustion process, or the residue separation process, can be introduced into the transportation step or a subsequent process.
17. The process for sorting and primary production of C4 plants for subsequent production according to claim 5, wherein the moisture improvement of the bagasse in the primary production step of the bagasse comprises bringing the bagasse to undergo moisture reduction or moisture improvement to the range of 35-50 percent by the dewatering process and / or the drying process under predetermined time conditions, and increasing the density by a mechanical force process to achieve a condition suitable for the formation of syngas, pyrolysis oil or bio-crude oil, synthetic natural gas (SNG), and hydrogen, wherein the syngas obtained from the process can be introduced into the transportation step or a subsequent process.
18. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 3, wherein the primary production step of the sap or the concentration adjustment of the sap is bringing the sap obtained from the sorting step or the preceding step into a process for concentration adjustment of the sap to be suitable for use in food and fermentation products and energy products.
19. The process for sorting and primary production of C4 plants for subsequent production according to claim 18, wherein the concentration adjustment of the sap for food and fermentation products and energy products is bringing the sap obtained from the dewatering process from the sorting step or the preceding step to undergo evaporation of the water contained in the sap to increase the concentration of the sap and to purify the sap, wherein the sap is made to have a sugar concentration in the range of 70-80 degrees Brix and undergoes pasteurization for sterilization of bacteria or microorganisms and is stored under appropriate temperature to maintain the quality and freshness of the sap.
20. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 18 or 19, wherein the increase in concentration of the sap and the purification of the sap can be performed by heating,such as vacuum evaporation, and reverse osmosis. Other heating methods that can evaporate the sap, and the removal of sediment or small insoluble particles in the sap can be performed by membrane filtration, centrifugal separation, spray drying, or freeze drying.
21. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 3, wherein the primary production step of the stalks or the pretreatment of the stalks is introducing the stalks obtained from the sorting step or the preceding step into a pretreatment process, wherein the stalks of the C4 plants used are prescribed to be cultivated under a single or mono-cropping system, in which the carbohydrate fiber content comprising cellulose and hemicellulose is in an amount of 50-80% of dry biomass.
22. The process for sorting and primary production of C4 plants for subsequent production according to claim 21, wherein the primary production step of the stalks or the pretreatment of the stalks is the size reduction of the stalks by cutting or chopping or by one or more forms of method, to obtain stalks having smaller size or size as prescribed, and / or the pretreatment by squeezing, compacting, or extruding, or using a specifically designed machine that is capable of separating sap from the stalks, resulting in stalks having moisture content and size as prescribed to create a condition suitable for the production of biogas and other products, wherein the product obtained after the pretreatment of the stalks can be introduced into the transportation step or a subsequent process.
23. The process for sorting and primary production of C4 plants for subsequent production according to claim 1, wherein the transportation step is a type of transportation that is carried out to deliver to a place selected from a farm, a production source, or a distribution center to a destination or production site for entering the subsequent production.
24. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 23, wherein the farm is a place where planting of C4 plants is provided, including a farm, plantation, field, garden, cultivation area, and any other place that has the capability of planting C4 plants.
25. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 23, wherein the primary production source is a place where the harvesting step, the sorting step, the primary productionstep, or any one process is provided, which has the capability to convert to obtain two or more types of raw materials and / or products.
26. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 23, wherein the distribution center is a place that provides for management and distribution of raw materials and / or products obtained from the harvesting step, the sorting step, the primary production step, or any one process, wherein it is provided to include a distribution center, warehouse, and any other place that can receive, store, and distribute / disseminate the products.
27. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 23, wherein the production site is a place that provides the bringing of raw materials and / or products obtained from the harvesting step, the sorting step, the primary production step, or any one process to conduct the subsequent production, wherein it is provided to include a production site, production factory, factory, customer, customer group, and any other place that has the capability to produce any other product.
28. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 23, wherein the destination place for entering into the subsequent production is provided to include the production source, distribution center, and production site.
29. The process for sorting and primary production of C4 plants for subsequent production according to claim 1, wherein the harvesting step or the sorting step or the primary production step can be introduced into the transportation step or subsequent process.
30. The process for sorting and primary production of C4 plants for subsequent production according to claim 1, wherein the C4 plants comprise sorghum, maize, sugarcane, barley, globe amaranth, Bermuda grass, nut grass, Chinese spinach, and are plants that are capable of growing well in arid environments, high temperature and poor soil quality, including short life cycle plants.
31. The process for sorting and primary production of C4 plants for subsequent production according to any one of claim 1 to 18, wherein sap includes liquid that nourishes inside the stalks of plants, wherein sugar may be a main component.