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Vegetable oil extraction

A technology for extracting oil and oil phase, applied in the field of palm oil, can solve problems such as difficulties, prolonged separation time, and increased wavelength

Inactive Publication Date: 2014-07-02
COMMONWEALTH SCI & IND RES ORG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reducing the frequency of the standing wave will increase the wavelength and allow the oil to separate from the larger plant particles, however the separation time increases and it becomes more difficult to maintain a stable standing wave field

Method used

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  • Vegetable oil extraction
  • Vegetable oil extraction
  • Vegetable oil extraction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1: Experiments with Indirect High Frequency Ultrasonic Treatment Using Ultrasonic Lab System

[0047] The following tests selected three intervention points to demonstrate the invention, i.e. (1) before the screw press ( figure 2 Point 3 in the middle); (2) the muddy sediment in the lower layer ( figure 2 Point 5 in ); and (3) the discharged sludge (before the sludge was centrifuged) ( figure 2 Point 6 in .

[0048] Three sonication methods were selected for processing the selected samples: Ultrasonic 1 (US1), Ultrasonic 2 (US2) and the two-step method (US1 and US2) using a long titanium rod type sonotrode or a short titanium rod sonotrode . After mixing and preheating to 70°C, the samples were pumped through an ultrasonic system. The mixture is recycled through the US1 system. In the US2 system, the transducer is placed in a water bath at 70°C and the sound waves are emitted indirectly through the wall of a plastic centrifuge tube filled with palm oil m...

Embodiment 2

[0064] Example 2: Pilot test with a plate transducer submerged in a container

[0065] Pilot tests further demonstrated other ultrasonic treatment conditions for enhanced oil extraction in various plate transducer configurations and using single frequency or combinations of multiple frequencies. Ultrasonic waves are applied to the feed before the screw press ( figure 2 Point 3 in): Ultrasonic 3 (US3), Ultrasonic 4 (US4), and Ultrasonic 5 (US5); Figure 6 the respective configurations in a, b and c). Fresh samples were obtained directly from the factory's processing line at 85°C and processed directly in the ultrasonic vessels used for each configuration. In all cases, the transducers were placed vertically or horizontally inside the container and emitted sound waves directly into the palm oil material.

[0066] US3 uses a frequency of 400kHz and a power of 222-227dB, utilizing vertical plate transducers arranged vertically on two different planes;

[0067] US4 uses freque...

Embodiment 3

[0074]Embodiment 3: Utilize the pilot test that the transducer that is installed on the outside of container carries out (active surface directly contacts with sample)

[0075] Additional pilot tests demonstrated that high frequencies are effective in enhancing oil extraction when using transducers mounted externally on prefabricated windows (or openings) through the vessel wall. This prototype ( Figure 10 ) has the advantage that only the active area of ​​the transducer is in direct contact with the sample, thus reducing the thermal load on the transducer and increasing its lifetime. Figure 10 The pilot systems in a and 10b are designed to accommodate 600 kHz and 400 kHz transducers, respectively. The system components are numbered and indicated as follows: (1) Spare cutout cover, (2) Support clamping bars, (3) Mounting screws, (4) Cutout support frame, (5) Transducer cooling (6) transducer signal port, (7) 600kHz plate transducer, (8) side window, (9) removable cover, (1...

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PUM

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Abstract

A method of extracting recovering oil from vegetable material in which oil bearing material is heated and subjected to sonication at least one frequency above 400 kHz, removing a first yield of oil by decanting and subjecting the retained material to centrifugal separation to separate out a second yield of oil. Preferably the raw vegetable material is passed through a screw press and the obtained material is heated and subjected to the ultrasonic treatment and then allowed to settle for a predetermined period before decanting the oil layer. Preferably two frequencies above 400 kHz are used, one below 1 MHz and the second from 1 MHz. There are many potential transducers arrangements possible for producing standing waves.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Australian Provisional Application No. 2011902275, filed 9 June 2011, and Australian Provisional Application No. 2012900749, filed 27 February 2012, the entire contents of which are incorporated by reference. technical field [0003] The present invention relates to a method for extracting oil from plants, especially palm oil. In particular, the present invention relates to the recovery of oil and oil soluble components in palm oil pressing operations. Background technique [0004] Various emerging food processing technologies, especially ultrasonic, high pressure processing, and microwave technologies are increasingly being developed and used in oil and phytonutrient recovery and food processing operations. Potential use in emerging food processing technologies in the palm oil industry. Potential applications in palm oil pressing operations include microwave-assisted extraction of...

Claims

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Application Information

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IPC IPC(8): A23L1/025A23L3/30B01D11/04C11B1/10C11B3/16A23L5/30
CPCB01D11/0265C11B1/102C11B1/106A23L5/32C11B1/04A23L5/30C11B1/00
Inventor M·A·奥古斯丁P·尤利亚诺R·莫森P·斯维尔戈恩K·克内策尔
Owner COMMONWEALTH SCI & IND RES ORG
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