Abstract:
The present invention addresses the processing of waste and low-value products that contain bone material to produce useful materials in reliable purities and compositions, at acceptable cost, and with high energy efficiency. In particular, the invention comprises a process that converts various feedstocks such as offal, animal manures, and municipal sewage sludge, to useful materials including gas, oil, specialty chemicals, and carbon solids. The process heats the feedstock in order to breakdown proteins and separate organic material from bone material, applies further heat and pressure to the resulting liquid mixture, separates out various components, then further applies heat and pressure to one or more of those components. The invention further comprises an apparatus for performing a process of converting waste products into useful materials, and an oil product that arises from the process.
Abstract:
This invention describes systems and methods for mixing two fluids. A first fluid, usually fuel, can be passed through a primary passage that typically leads to a carburetor or other inlet to a combustion engine. A second fluid, usually air, can be mixed with the first by introducing it to the primary passage through an inlet located upstream in the primary passage. The mixture of fluids can then be further emulsified by passing it over a plurality of obstructions, such as a threaded interior surface of the primary passage, located within the primary passage downstream of the inlet.
Abstract:
A process for enhancing the fuel form, raising the energy content, and lowering the level of impurities of low rank coals and/or carbonaceous wastes, like Municipal Solid Waste (MSW), Refuse Derived Fuel (RDF), and sewage sludge, by providing the low rank fuel, carbonaceous waste, or mixtures thereof as a slurry in water of processable viscosity. This feed slurry is heated under pressure, usually in the presence of an alkali, to a temperature at which a significant physical and molecular rearrangement occurs, characterized by the splitting off of a substantial proportion of the oxygen bound in the low rank coal or carbonaceous waste as carbon dioxide. At these conditions, solid particles in the feed slurry lose much of their fibrous and hydrophilic character, and are broken up into smaller particles of char, resulting in a slurry of dramatically improved rheology, i.e., capable of a much higher solids concentration (or energy density) at processable viscosity. Simultaneously, cation and anion impurities, like sodium, potassium, chlorine, sulfur, nitrogen, toxic metals, and others, are significantly reduced in the resulting product char slurry fuel.
Abstract:
Liquid wastes and solid wastes, which can be put into slurry form, have combustible constituents burned from them at supercritical temperature and subcritical pressure, with respect to water, resulting in purified water and, with the more concentrated wastes, recovery of valuable energy. Pressure makes possible the recovery of latent heat so that the dry heating value of the waste is made available. Consequently, relatively dilute wastes can be "incinerated" without the consumption of auxiliary fuel.
Abstract:
Coal liquid fractions to be used as fuels are stabilized against gum formation and viscosity increases during storage, permitting the fuel to be burned as is, without further expensive treatments to remove gums or gum-forming materials. Stabilization is accomplished by addition of cyclohexanol or other simple inexpensive secondary and tertiary alcohols, secondary and tertiary amines, and ketones to such coal liquids at levels of 5-25% by weight with respect to the coal liquid being treated. Cyclohexanol is a particularly effective and cost-efficient stabilizer. Other stabilizers are isopropanol, diphenylmethanol, tertiary butanol, dipropylamine, triethylamine, diphenylamine, ethylmethylketone, cyclohexanone, methylphenylketone, and benzophenone. Experimental data indicate that stabilization is achieved by breaking hydrogen bonds between phenols in the coal liquid, thereby preventing or retarding oxidative coupling. In addition, it has been found that coal liquid fractions stabilized according to the invention can be mixed with petroleum-derived liquid fuels to produce mixtures in which gum deposition is prevented or reduced relative to similar mixtures not containing stabilizer.
Abstract:
The invention concerns a fuel comprising a mixture of (A) at least one alcohol with an average molecular weight of less than 160, and (B) at least one further organic compound which has a spontaneous ignition temperature of less than 450.degree. C. The further organic compound is selected from(i) compounds which contain one nitrate group and at least two ether linkages, and(ii) compounds which contain two nitrate groups and at least one ether linkage.
Abstract:
A gasoline and petroleum fuel supplement formed of a combination of ingredients including a lower alkanol selected from the group consisting of methyl alcohol, ethyl alcohol, n-propyl alcohol, i-propyl alcohol and mixtures thereof and an alkali metal hydroxide selected from the group consisting of sodium hydroxide, potassium hydroxide, lithium hydroxide and mixtures thereof. These ingredients may be added in various ratios to gasoline and/or to water, preferably distilled or deionized water, for use as fuel supplements for internal combustion engines.
Abstract:
Disclosure is made of a method of improving the combustion of base fuels selected from ammonia and amines. The method comprises the addition of hydrogen carriers to the base fuels, which possess an energy content and release it together with hydrogen for combustion upon ignition of the base fuel. The disclosure is also of novel fuel compositions which comprise from 0.5 to 15 percent by weight of a hydrogen carrier dissolved or suspended in the base fuel.
Abstract:
The invention relates to highly reactive fuel compositions primarily intended for supersonic combustion ramjet engines. In particular, the invention provides highly reactive fuel compositions capable of efficient oxidation and thrust production even within the low combustor residence time of a supersonic combustion ramjet engine. The fuel compositions comprise specific blends of a major fuel component and an additive which, on pyrophoric combustion thereof, produces sufficient heat energy to spontaneously ignite and burn the major fuel component at a substantially increased rate.