摘要:
An environmentally clean dual fuel for an internal combustion engine, comprising acetylene as a primary fuel and a combustible fuel, such as one or more fluids selected from an alcohol such as ethanol, methanol or any other alcohol or alcohols from the group comprising C.sub.1 -C.sub.20 carbon chains, ethers such as from the group comprising dimethyl ether, diethyl ether, methyl t-butyl ether, ethyl t-butyl ether, t-amyl methyl ether, di-isopropyl ether and the like, low-molecular-weight esters such as from the group comprising methyl formate, methyl acetate, ethyl acetate, methyl propionate, ethyl propionate and the like, or other suitable combustible fluid such as mineral spirits and the like, as a secondary fuel for operatively preventing early ignition and knock arising from the primary fuel. The dual fuel, internal combustion system, which generally utilizes a two-stage process for start-up and operation and can be operated with air- or liquid-cooling, is environmentally clean with hydrocarbon, CO, NO.sub.x, and SO.sub.x emissions substantially eliminated.
摘要:
A fuel mixture, which contains by volume 15 to 25% acetylene, 5 to 17% C.sub.3 hydrocarbon, preferably propylene, and the remainder ethylene. This ternary fuel having a fairly constant acetylene content, is suitable in applications pertaining to assembly, flame heat treatment, flame metal spraying and disintegration of inorganic compounds or cements.
摘要:
A method of flame cutting using an improved industrial fuel gas composition consisting of an industrial fuel gas such as propane, butane, natural gas and acetylene, or a mixture thereof, and a supplemental hydrocarbon additive which, when combusted, emits radiant energy waves within the range of greatest absorbability of the material being cut.
摘要:
Acetylene and ethane are blended to form mixtures that are safe toward deflagration under any conditions of compression. The blends are then compressed and condensed to form liquids that can be safely stored, transported, and used as a source of acetylene in chemical reactions.
摘要:
A combustion tool fuel cell is provided having enhanced low temperature operation, including a fuel composition comprising at least one hydrocarbon component with a total vapor pressure equal or above 95 psig at 21° C.
摘要:
A process for partial oxidation of hydrocarbons in a reactor, in which a stream comprising the hydrocarbon and a stream comprising the oxygen are fed to the reactor, wherein both streams fed to the reactor are conducted within the reactor separately through in each case one or more spatially separate lines, these lines having turbulence generators in their interior, owing to which, as a result of the imposed deflection of the flow direction downstream of turbulence generators, a highly turbulent flow field forms, and the streams are then mixed in a mixing zone after exiting from the lines and then converted in a reaction zone.
摘要:
Acetylene is stored at elevated pressure by charging with acetylene at elevated pressure a pressure vessel (typically a gas cylinder) containing carbonaceous adsorbent able reversibly to adsorb acetylene. The adsorbent has: (a) a specific micropore volume equal to or greater than 0.5 cm.sup.3 /g; (b) a specific mesopore volume equal to or greater than 0.5 cm.sup.3 /g; (c) a bulk density equal to or greater than 0.25 g/cm.sup.3 ; and (d) a surface area per volume equal to or greater than 400 m.sup.2 /cm.sup.3. Alternatively or in addition to (a) and (b) above, the specific volume of pores having a diameter in the range of 1.5 to 3.0 nm is equal to or greater than 0.3 cm.sup.3 /g, but the sum of the specific mesopore volume and the specific micropore volume should always be equal to or greater than 1.0 cm.sup.3 /g. Preferably, at least 75% of the specific mesopore volume is contributed by mesopores having a diameter in the range of 2 to 5 nm and at least 90% of the micropores have a diameter of at least 0.4 nm. The adsorbent is typically in a free-flowing or monolithic form.