National Technology & Engineering Solutions of Sandia, LLC

Eric Monroe

Ryan Wesley Davis

Joseph Carlson

Nicholas Richard Myllenbeck

Anthe George

Sungwhan Kim

A fuel for an internal combustion engine includes a Cto Cdialkoxyalkanoate corresponding to formula (I): wherein the Rgroup is —H or a —CHgroup, the Rand R' groups are alkyl groups independently selected to have 1 to 9 carbon atoms; and the Rgroup is selected to have 1 to 9 carbon atoms. The compounds described herein may be used as neat fuels or mixed fuels (with diesel, biodiesel, jet fuel, marine fuel or other fuel compounds) in autoignition or spark ignition engines, such as diesel engines, gasoline (spark ignition) engines, MCCI, Homogeneous Charge Compression Ignition (HCCI) engines, or more generally in Low-Temperature Gasoline Combustion (LTGC) engines (using gasoline-like fuels), that have the high-efficiency advantages of HCCI but can operate with some level of charge inhomogeneities. Methods of making these compounds are environmentally friendly and can be done in a continuous manner.

Alkyl dialkoxyalkanoates as bioderived, high cetane diesel fuels

A chemical upgrading of two high-yield fermentation products to produce a novel biofuel with properties desirable for use in internal combustion engines produces a Cto Calkoxyalkanoate corresponding to formula (I):

Coupling high yield biochemical intermediates for fuel production

A fuel for an internal combustion engine includes a Cto Cdialkoxyalkanoate corresponding to formula (I): 

A fuel mixture includes a fuel and an octane overboosting additive. Methods of preparing and using such mixtures are disclosed. In particular, the mixture includes an additive that provides octane boosting that produces peak octane at or before a 40% blend and produces at least a 1 octane boost at 10% volume of additive to fuel mixture.

Compounds that induce octane overboosting

A fuel for an internal combustion engine includes a fatty alkyl ether having a formula corresponding to formula (II): wherein x is 1-8, and y is 0 to 3; and the alkyl is an alkyl group having a number of carbon atoms that is less than the number of carbon atoms in the alkyl chain on the opposite side of the oxygen atom. The fatty alky ether can be used as a neat fuel or blend with biodiesel, diesel, ethanol or other fuels. The fatty alkyl ethers are improved in cetane number and cold flow properties over a biodiesel with fatty acid methyl acid methyl ester compounds. This is particularly valuable for compression ignition engines. A method of combustion in several types of engines is also disclosed.

Fatty acid derived alkyl ether fuels for compression ignition

Systems for algae-based water filtration and algae harvesting are described herein. A flow-way comprises a channel and a divider positioned within the channel that separates the channel into sub-channels. The flow-way further includes an algal growth that grows on a sidewall of the channel and/or the divider. The algal growth can be established in the flow-way by positioning a pre-seeded mesh element within the channel, the pre-seeded mesh element having an algae culture growing thereon prior to positioning the pre-seeded mesh within the channel. A harvesting system comprises a hinged container that includes a straining screen. The hinged container is positioned downstream from a flow-way and receives water from the flow-way. Biomass in the water is strained by and accumulates on the screen. Weight of the accumulated biomass causes the hinged container to tip and deposit the accumulated biomass in a second container.

Algal harvesting and water filtration

The present invention relates, in part, to fuel mixtures and methods of preparing such mixtures. In particular, the mixture includes an alkenol additive that provides octane boosting.

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Pleasanton, CA, United States of America

Eric Monroe