摘要:
A filter (10) for removing undesired materials from a fluid, such as used cooking oil, includes a filter envelope (11) including first and second panels (12, 14). The first panel (12) has a permeability greater than that of the second panel (14). The first panel (12) of the filter envelope (11) may be formed of a filter pad, and the second panel (14) may be formed of a filter paper and may enclose a metal spacer grid (18). When the filter (10) is connected to a pump for drawing the oil through the filter (10), the flow of the oil is directed selectively through the filter pad (12), whereby undesired materials are removed from the oil. The filter (10) provides for efficient flow of the oil to be filtered while removing undesired materials therefrom.
摘要:
An economical and environmentally friendly, "green", process for the continuous purification of triacylglycerol (TAG) is described using a powdered, granulated or extruded adsorbent, which can be used in either the chemical or physical refining of edible oils and fats, both of which are traditionally used to refine TAG. The adsorbent is contained in a column system and is regenerated for reuse multiple times. The process utilizes the adsorbent column system as a treatment after chemical refining or before physical refining rather than water or filtration, respectively, to remove soaps and other impurities entrained in a crude triacylglycerol. In the chemical refining process, the crude degummed triacylglycerol (CDTAG) is first refined to remove FFA, forming a once refined triacylglycerol (ORTAG), and then contacted with an adsorbent packed into column(s) prior to deodorization. In the physical refining process, the crude degummed triacylglycerol (CDTAG) is contacted with an adsorbent packed into column(s) prior to the removal of FFA and subsequent deodorization. The CDTAG or ORTAG is contacted with an adsorbent packed into a column, or multiple columns in series, for a sufficient amount of time to remove impurities such as, but not limited to, soaps, metals, chlorophyll, and many of the other compounds that reduce the stability of the TAG. The resulting TAG exiting the column(s) is ready for the deodorization process. Once the adsorbent no longer removes the desired amount of impurities, it is regenerated for reuse. Such a continuous regenerable adsorbent refining process substantially reduces the amount of fresh water required and the amount of waste water generated to purify TAG and reduces the amount of solid waste produced. The result is a cost effective and environmentally friendly edible oil refining process.
摘要:
A process for the continuous purification of biodiesel (fatty acid alkyl esters (FAAE)) is described using an adsorbent The adsorbent is contained in a column system and is regenerated for reuse multiple times The process employs an adsorbent such as, carbon, silica, clay, zeolite or a metal silicate contained in a column to remove the impurities from fatty acid alkyl esters (FAAE) or crude biodiesel in a continuous process The crude biodiesel is contacted with an adsorbent packed into one or more columns to remove impurities such as soaps, metals, free glycerin, and sterol glucosides. The resulting finished biodiesel exiting the column(s) is ready for the methanol recovery process Once the adsorbent no longer removes the desired amount of impurities, it is regenerated for reuse The solvent used for the regeneration process is reclaimed and reused by recycling it back to the transesterification reaction.
摘要:
A filter (10) for removing undesired materials from a fluid, such as used cooking oil, includes a filter envelope (11) including first and second panels (12, 14). The first panel (12) has a permeability greater than that of the second panel (14). The first panel (12) of the filter envelope (11) may be formed of a filter pad, and the second panel (14) may be formed of a filter paper and may enclose a metal spacer grid (18). When the filter (10) is connected to a pump for drawing the oil through the filter (10), the flow of the oil is directed selectively through the filter pad (12), whereby undesired materials are removed from the oil. The filter (10) provides for efficient flow of the oil to be filtered while removing undesired materials therefrom.
摘要:
A method of purifying a biodiesel fuel by contacting the biodiesel fuel with at least one adsorbent material, such as magnesium silicate. Such method removes impurities, such as soap, formed during the production of biodiesel fuels.