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Methods and systems for producing pulp, energy and bio-derivatives from plant-based and recycled materials
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A technology of biomass materials and pulp, applied in the direction of liquid production bioreactors, biochemical equipment and methods, chemical instruments and methods, etc., can solve the problems of increasing manufacturing costs, limited biomass quality, increasing production process costs, etc., and achieve excellent The effect of performance and calorific value increase
Active Publication Date: 2022-01-21
思科有限责任公司
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However, due to the limited amount of biomass that can be removed from a given terrain, the biomass must be transported from the site to the processor, adding to the cost of the production process
In addition, during the production of pulp and paper products, large amounts of energy are required for heating, as well as relatively large quantities of chemical catalysts (typically more than 25% sodium hydroxide by volume), increasing manufacturing costs
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Embodiment 1
[0074] Extraction of 42g Peanut Shell Raw Material in Batch Reactor
[0075] Examples 1-24 directly test whether various raw materials (peanut hulls, wine residues, apple peels, pine chips, soybean hulls) can be used to make pulp for the paper industry and whether hydrothermal liquefaction methods can be used to reduce Or replace the chemicals currently used in the pulping process.
[0076] 42.04 g of solid peanut shells (moisture content 16.15%) were mixed with 428 mL of 1% NaOH and added to a 500 mL Parr batch reactor (model 4848). The reactor was preheated for 21 min before adding the peanut shells and NaOH. Temperature and pressure were recorded at various time points as indicated in Table 1 below.
[0077] The maximum temperature was 164°C, the maximum pressure was 84 psi, the pH was 7.5, and 1.68 mg / mL of soluble sugars were recovered.
[0078] Table 1
[0079] Temperature and pressure testing of peanut shells
[0080]
Embodiment 2
[0082] Extraction of 23.74g Peanut Shell Raw Material in Batch Reactor
[0083] 23.74 g of solid peanut shells (moisture content 16.15%) were mixed with 465 mL of 1% NaOH and added to the 500 mL batch reactor of Example 1. The reactor was preheated for 29 min before adding the peanut shells and NaOH. Temperature and pressure were recorded at various time points as indicated in Table 2 below.
[0084] The maximum temperature was 183°C, the maximum pressure was 171 psi, the pH was 8.25, and 0.62 mg / mL of soluble sugar was recovered.
[0085] Table 2
[0086] Temperature and pressure testing of peanut shells
[0087]
Embodiment 3
[0089] Extraction of chopped peanut shell raw material in batch reactor, preheated for 20min
[0090] 30.58 g of chopped peanut shells (moisture content 16.15%) were mixed with 474 mL of 5% NaOH and added to the 500 mL batch reactor of Example 1. The reactor was preheated for 20 min before adding the peanut shells and NaOH. Temperature and pressure were recorded at different time points as shown in Table 3 below.
[0091] With a maximum temperature of 176 °C, a maximum pressure of 1272 psi, and a pH of 13.79, 3.36 mg / mL of soluble sugars were recovered.
[0092] table 3
[0093] Temperature and pressure testing of chopped peanut shells
[0094]
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Abstract
The presently disclosed subject matter relates to an industrial system for processing various plant materials to produce marketable materials. Specifically, the system incorporates subcritical water extraction technology and includes a pretreatment module and a secondary treatment module (treatment module) with constant control of temperature, pressure and / or residence time. In some embodiments, the end products of the disclosed systems may include feedstock components for biofuel production (sugar and / or oil), biochar and various industrial feedstocks (e.g. for the manufacture of paper products and / or for food or cellulose pulp for industrial products). The disclosed system may be modular or non-modular and may include prefabricated elements with automatic programming or manual operation so that it can be easily moved and / or assembled on site.
Description
technical field [0001] The presently disclosed subject matter relates to modularization for industrial processing of plant material, wood, wood residue, algae, fungal biomass, agricultural waste, recycled material, putrescible waste, and / or by-products or intermediates thereof Or non-modular systems using subcritical water-assisted hydrolysis to produce paper and pulp products, feedstock components for the bioenergy industry, and other bio-derived commodities. Background technique [0002] Grasses, non-food crops and agricultural residues have shown potential as cost-effective "green" feedstocks for biofuel and pulp / paper production and have been the subject of extensive research projects over the past decade. However, due to the limited amount of biomass that can be removed from a given terrain, the biomass must be transported from the site to the processor, adding cost to the production process. In addition, during the production of pulp and paper products, large amounts ...
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