Filtration-Extraction of Cottonseed

D’Aquin, E. L.; Vix, H. L. E.; Spadaro, J. J.; Graci, A. V.; Eaves, P. H.; Reuther, Christopher G.; Molaison, L. J.; McCourtney, E. J.; Crovetto, Andrea; Gastrock, E. A.; Knoepfler, N. B.

doi:10.1021/ie50517a071

Cited by 22 publications

(5 citation statements)

References 6 publications

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“…A small amount of FFA, monoglycerides (MG), and diglycerides (DG) was also observed in the oil (Figure 2). Because the particle size of the grains was around 20 µm [obtained from scanning electrom microscopy (SEM) micrograph, Figure 3], a countercurrent extraction would be more economical for industrial purposes (21). The pH of the oil extracted from different solvents was observed to be different due to the variation in the FFA amounts.…”

Section: Resultsmentioning

confidence: 99%

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Spent Coffee Grounds as a Versatile Source of Green Energy

Kondamudi

Mohapatra

Misra

2008

J. Agric. Food Chem.

374

213

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The production of energy from renewable and waste materials is an attractive alternative to the conventional agricultural feed stocks such as corn and soybean. This paper describes an approach to extract oil from spent coffee grounds and to further transesterify the processed oil to convert it into biodiesel. This process yields 10-15% oil depending on the coffee species (Arabica or Robusta). The biodiesel derived from the coffee grounds (100% conversion of oil to biodiesel) was found to be stable for more than 1 month under ambient conditions. It is projected that 340 million gallons of biodiesel can be produced from the waste coffee grounds around the world. The coffee grounds after oil extraction are ideal materials for garden fertilizer, feedstock for ethanol, and as fuel pellets.

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Section: Resultsmentioning

confidence: 99%

“…The free fatty acids (FFAs) present in the crude oil were separated by converting them into soap by mixing a basic solution with the extracted oil. Soap was removed from the pure oil by centrifuging the mixture for 30 min (5000 rpm; Beckman centrifuge model J2- 21).…”

Section: Methodsmentioning

confidence: 99%

Spent Coffee Grounds as a Versatile Source of Green Energy

Kondamudi

Mohapatra

Misra

2008

J. Agric. Food Chem.

374

213

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“…In the processing of perishable produce, for example, minimum careful handling is a great asset in maintaining the value of the product. In the new plant of the Calavo Growers (California Avocados) automatic handling not only helps control quality, but reduces shipper waiting time as well (20). By manipulating electrical controls, a single operator receives lug boxes that have been stacked on floor-type conveyors by hand trucks, unstacks the boxes on an automatic device, carefully dumps the fruit, weighs it, and returns the lug boxes to the shipper.…”

Section: Thementioning

confidence: 99%

Leaching

Ebel¹

1954

Ind. Eng. Chem.

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“…These include the ability of the large operator to provide large storage capacity, finance long-term operation, and purchase the bulk of the premium quality seed. Attention in this laboratory was focused on developing operating procedures and processing methods which would enable existing small mills to succeed in the highly competitive cottonseed-processing industry. The filtration-extraction process, a variation of the direct solvent process, was designed primarily to provide the smaller cottonseed crusher with a more efficient and practicable processing method, resulting in lower operating costs and increased yields while producing high quality oil and meal (3,6,(7)(8)(9)(10)(11).…”

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confidence: 99%