Patent Application
20140053455
Not applicable
Not applicable
1. Field of the Invention
The present invention relates to processing of fuel, and more particularly to dewatering agents for fuels and cleaning agents for drill cuttings and dewatering and dispersing agents for biofuels.
2. General Background of the Invention
Processing of fuel often involves adding to the fuel dewatering agents for fuels and dewatering and dispersing agents for biofuels. Cleaning agents are often used to clean drill cuttings.
The present invention includes a composition which can be useful for cleaning drill cuttings, processing slop oil, and processing biofuels. The composition preferably includes a demulsifier, a co-additive for demulsifier, a solvent and coupling agent and antifoaming agent, a very powerful demulsifier, a solvent, a chelating dispersant, a surfactant, a fluorinated surfactant, and a dispersant which is an oil soluble and water dispersible anionic surfactant. Preferably there are as well multiple surfactant -degreasing agents (particularly when the composition is used to clean drill cuttings).
Preferably, the demulsifier is at least one from the group consisting of citric acid, acetic acid, ascorbic, formic, other carboxylic acids, sulphamic acid, phosphoric acid, sulfuric acid, and mixtures thereof, the co-additive for demulsifier is at least one from the group consisting of dodecyl benzene sulphonic acid, toluene sulphonic acid, toluene sulphonic acid, xylene sulphonic acid, and any other alkyl benzene sulphonic acid, and mixtures thereof, the solvent and coupling agent and antifoaming agent—hydrotrope is at least one from the group consisting of butyl cellosolve and any other preferably non-toxic alkyl glycol ether, and mixtures thereof,
In the above table, POE is polyoxiethylene.
To make the product, one blends as follows (with preferably constant stirring): put the citric acid in a reactor at ambient temperature (typically around 25 Centigrade);
Preferably, the citric acid is always the first ingredient in the reactor. Preferably, EB, Biosoft 101, and C-4100 are added before Versa TL-4. After that, the ingredients can be added in any order. The goal is to keep all components properly blended without separation as the blending occurs.
However, it is possible to mix ingredients other than citric acid together, then add that mix while stirring to the citric acid (in such a case more EB might be needed).
Malcera sells the above product as Malcera 1507AK.
Malcera 1507AK (optionally without Makon 4, Makon 6, and Makon 8) (or a version with ingredients from columns 1 and or 2) can be used to treat slop oils and tank remnants or sludges to knock out water and to disperse the hydrocarbons into diluents, and to drop solids out of these products. This is usually performed at about 150-200 degrees F. and the concentration is usually 1,000-2,500 ppm.
Malcera 1507AK (or a version with ingredients from columns 1 and or 2) can be used to treat drill cuttings to reduce water content. This is usually performed at about 100 degrees C. and the concentration is usually 5,000-10,000 ppm. The drill cuttings are typically coated with oil based drilling mud emulstions.
Malcera 1507AK (optionally without Makon 4, Makon 6, and Makon 8, but preferably in approximately the amounts listed in column 7 of Table 1) (or a version with ingredients from columns 1 and or 2) can be used to reduce water content and solids content in a biofuels mixture made from the pyrolysis of wood to yield a very clean oil. This clean oil can then be hydrotreated to make gasoline and diesel. When used in a biofuels mixture, typically 500-1000 ppm of Malcera 1507AK is used in the biofuels mixture. The typical temperature is about 150 degrees F. Malcera 1507AK knocks out water so that less than 99.9% of the biofuels mixture is water. A desalter then takes out last up to 0.1% water.
All measurements disclosed herein are at standard temperature and pressure, at sea level on Earth, unless indicated otherwise.
The foregoing embodiments are presented by way of example only; the scope of the present invention is to be limited only by the following claims.
This is anon-provisional patent application of U.S. Provisional Patent Application Ser. No. 61/684,414, filed 17 Aug. 2012, which is hereby incorporated herein by reference. Priority of U.S. Provisional Patent Application Ser. No. 61/684,414, filed 17 Aug. 2012, incorporated herein by reference, is hereby claimed. All prior patents and patent applications naming me as an inventor are hereby incorporated herein by reference, including the following: Published U.S. patent applications: US20110174695 A1; US2006/0035793 A1; U. S. 2005/0193923 A1; US2009/059046; US2005/26355; PCT International Publication Number WO2006/012622 A2; U.S. patent application Ser. No. 13/302,645; U.S. patent application Ser. No. 13/121,729; U.S. Pat. No. 6,322,621 B1; U.S. Pat. No. 6,783,582 B2; U.S. Pat. No. 7,449,429; and U.S. Pat. No. 8,063,004.
| Number | Date | Country | |
|---|---|---|---|
| 61684414 | Aug 2012 | US |
