摘要:
The disclosure provides various methods for separating and recovering free fatty acids crude oil containing free fatty acids using certain ion-exchange resins to reduce the amount of free fatty acids in the crude oil to 3% or less such that the resultant oil is useable in downstream chemical processes. After separation and removal of the free fatty acids form the crude oil, the ion-exchange resin is reusable in further free fatty acid separation reactions.
摘要:
A hydrocarbon sequestering product, a method to obtain the product, and a method and a facility to sequester hydrocarbons, wherein the product comprises an oleophilic filamentous material that gets in contact with a medium contaminated by one or more hydrocarbons with the purpose of sequestrating the hydrocarbon(s) present in the medium to free it from said hydrocarbons.
摘要:
A selective adsorbent by means of which halogenated aromatic compounds contained in organic media in small amounts can be selectively adsorbed and either removed or concentrated from the organic media to facilitate decomposition of the halogenated aromatic compounds. The selective adsorbent comprises a composition comprising a compound that interacts with the halogenated aromatic compound attractively and which is selected from the group consisting of a cyclic compound selected from the group consisting of a modified cyclodextrin compound represented by the following formula 1: (where R1 is an amino group, an alkyl group, an alkenyl group, an alkynyl group, a halogen atom, a haloalkyl group, an aryl group, an aralkyl group, an alkoxyalkyl group, a nitro group, an alkanoyl group, an aroyl group, an alkoxycarbonyl group, an arylalkoxycarbonyl group, an alkoxy group, a haloalkoxy group, an aryloxy group, an aralkyloxy group, an alkoxyalkyloxy group, an alkanoyloxy group, an alkoxycarbonyloxy group, an aralkyloxycarbonyloxy group, an alkylsilyl group, or an alkylsilyloxy group; n is 6, 7, or 8), other cyclic oligosaccharides, a supermolecular assembly of cyclodextrin, a crown compound, cyclophane, azacyclophane, thiocyclophane, cryptand, cyclotriveratrylene, cavitand, calixarene, spherand, and cyclic oligopeptides; dimers of these cyclic compounds; an acyclic compound selected from the group consisting of acyclic oligosaccharides and acyclic oligopeptides; and mixtures of two or more species of these cyclic compounds and/or these acyclic compounds.
摘要:
The present invention relates to a process for dechlorinating a spent lubricating oil fraction, optionally mixed with another hydrocarbon stock. Upstream of the recycling operation in refining the spent oil, the latter is subjected to a dechlorination operation at least partially by passing it on a bed of particles (6) of a composition which neutralizes by absorption and containing, as active compound capable of fixing the chlorine, at least one metal oxide and/or at least one metal hydroxide.
摘要:
Apparatus for removing a contaminant from a container having a liquid inventory including the contaminant as a minor ingredient and having an elevated temperature at the top of the liquid inventory. A treatment vessel contains a supply of particulate adsorbent for the contaminant. A first conduit connects the top of the container with the treatment vessel. A second conduit connects the treatment vessel with the bottom of the container. The temperature difference between the top and bottom of liquid in the container provides the driving force for continuing movement of liquid from the top of the container through the first conduit, the treatment vessel and the second conduit back to the bottom of the container. The apparatus is particularly useful for removing PCB from retrofilled transformers containing minor quantities of PCB.
摘要:
A system for the substantial removal of polynuclear aromatic compounds from lubricating oil used to lubricate the engine of a motor vehicle comprising a sorbent located within the lubricating system and through which the lubricating oil circulates which is capable of removing substantially all of the polynuclear aromatic hydrocarbons from the lubricating oil. The sorbent is preferably activated carbon which may be impregnated with additives typically found in lubricating oils especially antioxidants, to prolong the useful life of the oil.
摘要:
Electrical inductive apparatus having a tank, an insulating and cooling liquid in the tank and an electrical winding structure immersed in the liquid, the liquid having a low vapor pressure and containing contaminants derived from various sources within the tank. Filter means associated with the liquid including a liquid recirculating device for degassing, demoisturizing, and filtering insoluble particles out of the liquid, whereby the liquid is decontaminated and upgraded in a continual process.
摘要:
A hydrocarbon sequestering product, a method to obtain the product, and a method and a facility to sequester hydrocarbons, wherein the product comprises an oleophilic filamentous material that gets in contact with a medium contaminated by one or more hydrocarbons with the purpose of sequestrating the hydrocarbon(s) present in the medium to free it from said hydrocarbons.
摘要:
A hydrocarbon sequestering product, a method to obtain the product, and a method and a facility to sequester hydrocarbons, wherein the product comprises an oleophilic filamentous material that gets in contact with a medium contaminated by one or more hydrocarbons with the purpose of sequestrating the hydrocarbon(s) present in the medium to free it from said hydrocarbons.
摘要:
The treating material for polychlorobiphenyl-containing oil comprises calcium oxide provided with a hydrophobic property by deposition of an oil and capable of taking place water absorbing exothermic reaction upon decomposition of the oil, sepiolite, vermiculite or zeolite as a porous material having an ion exchanging capability, capable of adsorbing the polychlorobiphenyl-containing oil and the hydrophobic calcium oxide and decomposing the oil, and potassium carbonate, sodium carbonate and neutral detergent as an oil decomposing agent for decomposing the oil deposited on calcium oxide. By mixing the treating material with polychlorobiphenyl-containing oil, the oil component is decomposed into a powder at a low temperature and chlorine is liberated from polychlorobiphenyl by the ion exchanging capability and changed to a nontoxic chlorine compound such as calcium chloride or magnesium chloride.