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11.发明授权Process and apparatus for recovering residual oil from solids dehydrated in an oil medium and grossly deoiled 失效用于从石油和石油中脱除的固体中回收残留油的工艺和装置
公开(公告)号：US3950230A
公开(公告)日：1976-04-13
申请号：US511825
申请日：1974-10-03
CPC分类号： B01D1/14 , B01D1/26 , B01D11/0226 , B01D21/262 , B09C1/02 , B09C1/06 , C02F11/002 , B01D2221/06 , B01D2221/10 , Y10S159/25 , Y10S159/33 , Y10S159/905
摘要： Process and apparatus for recovering residual oil from solids previously substantially dehydrated by a process wherein a slurry of water-wet solids in oil is subjected to a heat evaporation step to substantially remove the water. The oil is then largely expressed from the solids after which the solids still containing some oil as residual oil are extracted with a relatively low viscosity and relatively volatile water-immiscible light oil. The light oil-laden solids are then brought into direct contact with steam whereby the presence of the steam effectively reduces the boiling point of the water-immiscible light oil to effect its more efficient removal from the solids. Excess externally supplied steam and light oil vapor are used to supply heat to the overall process.
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公开(公告)号：US3251398A
公开(公告)日：1966-05-17
申请号：US31179263
申请日：1963-09-26
申请人： CHARLES GREENFIELD
发明人： CHARLES GREENFIELD
IPC分类号： C02F11/00
CPC分类号： C02F11/002 , Y10S71/901 , Y10S159/25 , Y10S159/33 , Y10S159/905
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公开(公告)号：US2911423A
公开(公告)日：1959-11-03
申请号：US68751657
申请日：1957-10-01
申请人： CHARLES GREENFIELD
发明人： CHARLES GREENFIELD
IPC分类号： C11C1/00
CPC分类号： C11C1/005
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公开(公告)号：US2911421A
公开(公告)日：1959-11-03
申请号：US64027857
申请日：1957-02-14
申请人： CHARLES GREENFIELD
发明人： CHARLES GREENFIELD
IPC分类号： C11B1/12
CPC分类号： C11B1/12
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公开(公告)号：US2619421A
公开(公告)日：1952-11-25
申请号：US19709050
申请日：1950-11-22
申请人： CHARLES GREENFIELD
发明人： CHARLES GREENFIELD
CPC分类号： C11B7/0075 , A23C15/14
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公开(公告)号：US4608120A
公开(公告)日：1986-08-26
申请号：US587133
申请日：1984-03-07
CPC分类号： B01D12/00 , B01D1/26 , C02F11/002
摘要： An apparatus for removing light oil from solids. The invention is particularly applicable to the removal of residual light oil from solids obtained in an apparatus where aqueous solids are mixed with a light fluidizing oil and subjected to dehydration by heat evaporation. Aqueous solids are mixed with a low viscosity, relatively volatile, water-immiscible light fluidizing oil in a fluidizing tank to obtain a mixture which will remain fluid and pumpable after removal of essentially its entire water content. The mixture of solids, water and fluidizing oil is subjected to a dehydration step by heat evaporation whereby substantially all of the water and at least part of the light oil are evaporated and subsequently recovered. The light fluidizing oil is then largely separated from the solids in a liquid-solid separating means. The solids carrying residual light fluidizing oil are then brought into direct contact in a deoiler apparatus with a hot, inert gas, referred to herein as "blowing gas." The hot, inert blowing gas effects the removal of the residual light oil from the solids. Light oil vapor removed from these solids is separated from effluent blowing gas by condensation and recovered. Effluent blowing gas, free of light oil vapor, may be recycled. The inert blowing gas may be gaseous products of combustion obtained from, for example, a boiler-furnace. Alternatively, the blowing gas may be an inert gas, other than gaseous combustion products, that is heated in the heating region of a boiler-furnace. In either case, the boiler-furnace may or may not be otherwise associated with the apparatus for the dehydration of aqueous solids mixed with light fluidizing oil.
摘要翻译： 用于从固体中除去轻质油的装置。 本发明特别适用于在将含水固体与轻质流化油混合并通过热蒸发进行脱水的设备中得到的固体中除去残余轻油。 将水性固体与流化槽中的低粘度，相对挥发性的与水不混溶的轻质流化油混合，以获得在除去基本上其全部水含量之后将保持流体和可泵送的混合物。 固体，水和流化油的混合物通过热蒸发进行脱水步骤，基本上所有的水和至少部分的轻油被蒸发并随后回收。 然后轻液化油在液 - 固分离装置中与固体大量分离。 然后携带残余光流化油的固体在具有热惰性气体的脱气装置中直接接触，这里称为“吹气”。 热的惰性气体气体可以从固体中去除残留的轻油。 从这些固体中除去的轻油蒸气通过冷凝与流出物吹出气体分离并回收。 可以循环使用不含轻油蒸汽的流出气体吹入气体。 惰性吹入气体可以是从例如锅炉炉获得的燃烧气体产物。 或者，吹入气体可以是在锅炉炉的加热区域中被加热的惰性气体，而不是气体燃烧产物。 在任一种情况下，锅炉炉可能与也可能不与用于与轻质流化油混合的含水固体的脱水装置相关联。
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公开(公告)号：US4518458A
公开(公告)日：1985-05-21
申请号：US419574
申请日：1982-09-17
CPC分类号： B01D12/00 , B01D1/26 , C02F11/002
摘要： Process and apparatus for removing light oil from solids. The invention is particularly applicable to the removal of residual light oil from solids obtained in a process where aqueous solids are mixed with a light fluidizing oil and subjected to dehydration by heat evaporation. Aqueous solids are mixed with a low viscosity, relatively volatile, water-immiscible light fluidizing oil to obtain a mixture which will remain fluid and pumpable after removal of essentially its entire water content. The mixture of solids, water and fluidizing oil is subjected to a dehydration step by heat evaporation whereby substantially all of the water and at least part of the light oil are evaporated and subsequently recovered. The light fluidizing oil is then largely separated from the solids. The solids carrying residual light fluidizing oil are then brought into direct contact with a hot, inert gas, referred to herein as "blowing gas." The hot, inert blowing gas effects the removal of the residual light oil from the solids. Light oil vapor removed from these solids is separated from effluent blowing gas by condensation and recovered. Effluent blowing gas, free of light oil vapor, may be recycled.
摘要翻译： 从固体中除去轻油的方法和设备。 本发明特别适用于在将含水固体与轻质流化油混合并通过热蒸发进行脱水的方法中从固体中除去残留的轻油。 将水性固体与低粘度，相对易挥发的水不混溶的轻质流化油混合，以获得在除去基本上其全部水分后将保持流体和可泵送的混合物。 固体，水和流化油的混合物通过热蒸发进行脱水步骤，从而基本上所有的水和至少部分轻油蒸发并随后回收。 然后轻质流化油与固体大量分离。 然后将携带残余光流化油的固体与本文称为“吹气”的热惰性气体直接接触。 热的惰性气体气体可以从固体中去除残留的轻油。 从这些固体中除去的轻油蒸气通过冷凝与流出物吹出气体分离并回收。 可以循环使用不含轻油蒸汽的流出气体吹入气体。
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公开(公告)号：USRE31185E
公开(公告)日：1983-03-22
申请号：US356346
申请日：1982-03-09
CPC分类号： B01D1/26 , C02F11/002
摘要： An apparatus and process for dehydrating waste solids concentrates including secondary and digested sewage sludges and those concentrates prone to form emulsions upon the addition of oil are obtained and accomplished by mixing the sludge or other concentrate with fluidizing oil prior to dehydration by heat evaporation to maintain pumpability; recycling a portion of the substantially anhydrous waste solids and oil evaporator output slurry, and admixing it with the fluidizing oil and input sludge or concentrate to regulate the solids content and viscosity of the steady state feed mixture and thereby prevent fouling of the evaporator heat transfer surfaces and convert emulsions to suspensions.
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公开(公告)号：US4270974A
公开(公告)日：1981-06-02
申请号：US719515
申请日：1976-09-01
CPC分类号： C02F11/002 , B01D1/14 , B01D1/26 , B01D12/00 , B01D3/34 , Y10S159/905
摘要： Process and apparatus for recovering clean water and solids from aqueous solids. Aqueous solids are mixed with a low viscosity, relatively volatile, water-immiscible light fluidizing oil to obtain a mixture which will remain fluid and pumpable after removal of essentially its entire water content. The mixture of solids, water and fluidizing oil is subjected to a dehydration step by heat evaporation whereby substantially all of the water and at least part of the light oil are evaporated and subsequently recovered. The light fluidizing oil is then largely separated from the solids. Those solids carrying residual light fluidizing oil are then brought into direct contact with steam, referred to herein as "blowing steam". The presence of the blowing steam reduces the boiling point of the water-immiscible light fluidizing oil to effect its more efficient removal from the solids. Effluent blowing steam and light oil vapor removed from the solids may be used to supply heat to the overall process.
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公开(公告)号：US4007094A
公开(公告)日：1977-02-08
申请号：US640712
申请日：1975-12-15
CPC分类号： B01D1/26 , B01D3/343 , C02F1/048 , C02F11/002 , Y10S159/17 , Y10S159/25 , Y10S159/905
摘要： Process and apparatus for recovering clean water from aqueous wastes by evaporation while avoiding scaling and fouling as well as corrosion of the evaporator tubes. Addition of an oil, preferably a volatile oil, to the aqueous waste feed results in the formation of a coating of said oil on the surfaces of the tubes, thereby preventing corrosion and fouling and build-up of scale deposits. Volatile oil that distills over is separated from the aqueous distillate by conventional means and may be recirculated.
摘要翻译： 通过蒸发从废水中回收清洁水的方法和装置，同时避免蒸发器管的结垢和结垢以及腐蚀。 向废水进料中加入油，优选挥发性油导致在管的表面上形成所述油的涂层，从而防止锈垢沉积和结垢沉积。 蒸馏的挥发油通过常规方法与含水馏分分离，并可以再循环。
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