Abstract: Cellulose and hemicellulose from biomass can be broken down to C6 and C5 sugars and further converted to corresponding sugar alcohols. It is now found that a new catalyst, MoS2, is active for the hydrogenation of sugar alcohols to hydrocarbons. Combining the technologies listed above allows us to convert the cellulose/hemicellulose to liquid hydrocarbons.

Abstract: Furfural is produced through hydrolysis of the hemi-cellulose in corn stover. Furfural may also be produced from other biomass. The direct conversion of furfural to mono-alcohols which can be blended with gasoline is an attractive chemical process for providing biomass into the liquid fuel supply. Examples of such alcohols include 1-butanol, 1-pentanol, 2-pentanol and tetrahydrofurfuryl alcohol. Preferred alcohols include C-4 and C-5 mono-alcohols that have suitable blending properties.

Abstract: A heated petroleum-derived hydrocarbon is contacted with a triglyceride feed in a thermal cracking zone to decompose and remove impurities prior to hydrotreating the mixture to fuel range hydrocarbon. This process allows the use of a variety of low cost triglyceride feeds while reducing fouling of process equipment and catalyst. The process also reduces the use of chemicals required for conventional degumming of triglyceride feeds.

Abstract: A method of hydrotreating liquefied biomass feedstock with diesel feedstock to produce alkanes is demonstrated that prevents damage to the reactor catalyst, reduces coke production, and converts nearly all of the polyols to alkanes. In order to mitigate the potential coking issue and to moderate the temperature of the catalyst bed while maintaining high conversion for sugar alcohol to hydrocarbon via a hydrotreating process, a diesel feedstock is fed over the reactor catalyst with multiple injections of polyol feedstock along the reactor.

Abstract: The conversion of diols to mono-alcohols as fuel blendstocks. In one embodiment hydrotreating processes are described that selectively convert glycols to mono-alcohols that can be blended as biofuels. Both NiMo and CoMo catalysts are active for the reaction and reaction conditions can also impact the selectivity of mono-alcohols.

Abstract: Cellulose and hemicellulose from biomass can be broken down to C6 and C5 sugars and further converted to corresponding sugar alcohols. It is now found that a new catalyst, MoS2, is active for the hydrogenation of sugar alcohols to hydrocarbons. Combining the technologies listed above allows us to convert the cellulose/hemicellulose to liquid hydrocarbons.

Abstract: Technologies to convert biomass to liquid hydrocarbon fuels are currently being developed to decrease our carbon footprint and increase use of renewable fuels. Since sugars/sugar derivatives from biomass have high oxygen content and low hydrogen content, coke becomes an issue during zeolite upgrading to liquid hydrocarbon fuels. A self-sustainable process was designed to reduce the coke by co-feeding sugars/sugar derivatives with the paraffin products from hydrogenation of sugars/sugar derivatives. Paraffins without complete conversion result in products with less aromatics and relatively low density compared with the products directly from zeolite upgrading. Thus, the process is more economically favorable.

Abstract: This invention relates to a process for production of transportation fuels from biomass. More particularly, this invention relates to a process for using solvent to remove metal impurities and high molecular weight components from biomass derived biocrude to prevent potential catalyst poisoning and catalyst bed plugging in biocrude-to-transportation fuel upgrading process.

Abstract: Described is a method for converting biomass derived pyrolysis oil (bio-oil) into materials that will be more useful for transportation fuels including the following two steps: 1) solubilizing and extracting bio-oil oxygenates, and 2) zeolite catalyzed hydrogenation of the oxygenates into renewable fuel range materials.

Abstract: A method of hydrotreating liquefied biomass feedstock with diesel feedstock to produce alkanes is demonstrated that prevents damage to the reactor catalyst, reduces coke production, and converts nearly all of the polyols to alkanes. In order to mitigate the potential coking issue and to moderate the temperature of the catalyst bed while maintaining high conversion for sugar alcohol to hydrocarbon via a hydrotreating process, a diesel feedstock is fed over the reactor catalyst with multiple injections of polyol feedstock along the reactor.

Abstract: Technologies to convert biomass to liquid hydrocarbon fuels are currently being developed to decrease our carbon footprint and increase use of renewable fuels. Since sugars/sugar derivatives from biomass have high oxygen content and low hydrogen content, coke becomes an issue during zeolite upgrading to liquid hydrocarbon fuels. A process was designed to reduce the coke by co-feeding sugars/sugar derivatives with a saturated recycle stream containing hydrogenated products.

Abstract: A process for co-production of renewable diesel fuel range hydrocarbons and gasoline fuel range hydrocarbons from biomass-derived oils and fatty materials (e.g. triglycerides, diglycerides, monoglycerides, and free fatty acids) and biomass-derived polyol (e.g. sorbitol, xylitol, trehalose, sucrose, and sugar alcohol), respectively, in a same refinery hydrotreater with or without co-feeding of diesel fuel range hydrocarbons.

Abstract: A process for upgrading hydrocarbons comprising removal of C5 hydrocarbons from a feedstock, metathesizing said C5 hydrocarbons to C6+ and C4? hydrocarbons, and upgrading said C4? hydrocarbons is disclosed absent any dehydrogenation.

Abstract: It has been discovered that the residence time of oils/fats in metal apparatus, particularly in the upstream of a hydrotreating unit, for example, a heat exchanger and/or a storage/feed tank, can impact significantly on corrosiveness of oils/fats in combination with and without conventional hydrocarbons. In addition, it is also found that the presence of hydrogen in the metal apparatus can also inhibit the corrosion rate of oils/fats.

Abstract: Conversion of renewable hydrocarbons to transportation fuels is required to reduce carbon emission, limit the use of fossil fuels, and develop renewable energy sources. Sorbitol, xylitol and trehelose are polyalcohols generated from the liquefaction of various sugars and carbohydrates in biomass from algae, corn, sugarcane, switchgrasses, and biological wastes. Mixtures of aqueous polyols and fuel feedstocks are catalyzed over metal catalysts to produce hexanes, pentanes, and lighter hydrocarbons. By managing the catalyst, reaction conditions and sulfur content, the octane value of the product fuel is dramatically increased.

Abstract: Cellulose and hemicellulose from biomass can be broken down to C6 and C5 sugars and further converted to corresponding sugar alcohols. It is now found that a new catalyst, MoS2, is active for the hydrogenation of sugar alcohols to hydrocarbons. Combining the technologies listed above allows us to convert the cellulose/hemicellulose to liquid hydrocarbons.

Abstract: A process is disclosed for converting distillate to gasoline-range hydrocarbons using a two-stage catalyst system including a first catalyst containing a Group VIII metal and a zeolite, and a second catalyst containing a Group VIII metal, tin and an inorganic oxide support.

Abstract: Materials and processes for the conversion of carbohydrates and polyols to gasoline boiling range hydrocarbons. Carbohydrates and polyols are reacted in the presence of modified zeolite catalysts to form a reaction product containing non-aromatic and aromatic gasoline boiling range hydrocarbons.

Abstract: The conversion of diols to mono-alcohols as fuel blendstocks. In one embodiment hydrotreating processes are described that selectively convert glycols to mono-alcohols that can be blended as biofuels. Both NiMo and CoMo catalysts are active for the reaction and reaction conditions can also impact the selectivity of mono-alcohols.

Abstract: Methods and systems relate to upgrading light olefins, such as ethylene, propylene and butylenes, diluted in a gas mixture, such as refinery fuel gas. The upgrading yields products in a gasoline, distillate, lube oil or wax range without requiring purification or compression of the gas mixture prior to feeding the gas mixture to a reactor. In operation, the mixture contacts a solid oligomerization catalyst, such as silica supported chromium, within the reactor. This contact occurs at a first temperature suitable to produce oligomers that are formed of the olefins and adsorb on the catalyst in liquid or solid phases. Next, heating the catalyst to a second temperature higher the first temperature desorbs the oligomers that are recovered and separated into the products.