Fast pyrolysis heat exchanger system and method

    公开(公告)号:US11634644B2

    公开(公告)日:2023-04-25

    申请号:US15922976

    申请日:2018-03-16

    Inventor: Kenneth D. Moss

    Abstract: A fast pyrolysis heat exchanger system for economically and efficiently converting biomass and other combustible materials into bio-oil. The system employs multiple closed loop tubes situated inside the heat exchanger. As a granular solid heat carrier is deposited at the top of the heat exchanger and caused to move downwardly therethrough, heat is transferred from the tubes to the heat carrier which is then transferred to a reactor where it is placed in contact with the combustible materials.

    Process for the gentle flash distillation of residual oils
    5.
    发明授权
    Process for the gentle flash distillation of residual oils 失效
    挥发油蒸馏残余油的工艺

    公开(公告)号:US06841064B1

    公开(公告)日:2005-01-11

    申请号:US10148826

    申请日:2000-11-16

    CPC classification number: C10B49/20 C10G9/005 C10G9/28

    Abstract: Residual oil from the processing of crude oil, natural bitumen or oil sand is mixed in a mixer with granular, hot coke as heat carrier (heat carrier coke) in a weight ratio of 1:3 to 1:30, where on the granules of the heat carrier coke there is first of all formed a liquid residue film which partly evaporates in the mixer. Gases and vapors and moist, sticky coke are withdrawn from the mixer. The mixture of coke and residual oil is introduced into a subsequently connected stirred tank in which the mixture slowly moves downwards while being stirred mechanically at a temperature of 450 to 600° C. and preferably at 480 to 550° C. Dry, flowable coke is withdrawn from the stirred tank. Usually, the dwell time of the heat carrier coke in the stirred tank is 1 to 30 minutes.

    Abstract translation: 来自加工原油,天然沥青或油砂的残余油在混合器中与作为热载体(热载体焦炭)的颗粒状焦炭(重量比为1:3至1:30)混合,其中颗粒状 首先,热载体焦炭形成了在混合器中部分蒸发的液体残余物膜。 将气体和蒸气和潮湿的粘稠焦炭从混合器中取出。 将焦炭和残余油的混合物引入随后连接的搅拌釜中,其中混合物在450-600℃,优选480-550℃的温度下机械搅拌的同时慢慢地向下移动。干燥的可流动的焦炭为 从搅拌罐中取出。 通常,搅拌釜中的载体焦炭的停留时间为1〜30分钟。

    Fixed sulfur petroleum coke fuel and method for its production
    8.
    发明授权
    Fixed sulfur petroleum coke fuel and method for its production 失效
    固定硫石油焦炭燃料及其生产方法

    公开(公告)号:US4479804A

    公开(公告)日:1984-10-30

    申请号:US301356

    申请日:1981-09-11

    CPC classification number: C10B55/00 C10L9/10

    Abstract: A fixed-sulfur, solid fuel product is obtained by an improved coking process wherein petroleum fractions are coked in the presence of added alkaline earth metal oxides. The fixed-sulfur, solid fuel product comprises coke and from about 3 to 30 weight percent, preferably from about 5 to 15 weight percent, "ash" (calculated as calcium oxide) derived from the alkaline earth additive. The quantity alkaline earth metal oxide or precursor thereof added to the coking zone is dependent on the sulfur content of the product coke and on the desired ash content of the solid fuel product. The coking zone may comprise delayed, fluid bed, or moving bed cokers.

    Abstract translation: 通过改进的焦化方法获得固定硫固体燃料产物,其中石油馏分在加入的碱土金属氧化物的存在下被焦化。 固体硫固体燃料产品包括焦炭和约3至30重量%,优选约5至15重量%的衍生自碱土金属添加剂的“灰分”(以氧化钙计算)。 添加到焦化区中的碱土金属氧化物或其前体的量取决于产物焦炭的硫含量和固体燃料产品的所需灰分含量。 焦化区可以包括延迟的流化床或移动床焦炭。

    Process for maximizing oil yield in the retorting of oil shale
    9.
    发明授权
    Process for maximizing oil yield in the retorting of oil shale 失效
    在油页岩蒸馏中最大化油产量的方法

    公开(公告)号:US4312740A

    公开(公告)日:1982-01-26

    申请号:US97718

    申请日:1979-11-27

    CPC classification number: C10G1/02

    Abstract: An improved method for retorting oil shale with heat-carrying bodies comprising relatively coarse attrition resistant, non-oil sorbing, shale ash particles wherein oil recovery is maximized. After retorting, the spent oil shale and heat-carrying bodies are transferred to a reheating vessel or combustor. The reheating vessel contains a dense phase fluidized bed wherein the fixed carbon contained in the spent shale is combusted at temperatures between 1100.degree. F. and 1600.degree. F. to reheat the heat-carrying bodies. The invention is based on the finding that the decomposition of kerogen, which is present as a binder in raw oil shale, leaves pores within kerogen-rich shale which results in relatively large surface areas. Attrition of the kerogen-rich shale in the dense phase fluidized bed at a superificial gas velocity of 7-14 ft/sec reduces the size of this porous, friable material and allows it to be removed in the exit gas stream as fines. The larger particles remaining in the fluidized bed originated as kerogen-lean shale and thus lack the surface area and resulting sorption capacity to adversely affect retorting. These relatively coarse, attrition resistant, non-oil sorbing particles thus may be used effectively as heat-carrying bodies.In another feature of the invention, recovery of sensible heat from the coarse and fine combusted spent shale particles is accomplished in two separate coarse and fine fluidized bed coolers operated at specific conditions to maximize heat transfer and energy utilization.

    Abstract translation: 一种改进的使用包含相对粗糙的耐磨,非油吸附,含油回收最大化的页岩灰颗粒的带有热载体的油页岩蒸馏法。 在蒸馏后,将废油页岩和热载体转移到再加热容器或燃烧器。 再加热容器含有密相流化床,其中包含在废页岩中的固定碳在1100°F至1600°F之间的温度下燃烧,以重新加热热载体。 本发明基于以下原因:原油页岩中作为粘合剂存在的干酪根的分解在富含干酪根的页岩中留下孔,导致相对较大的表面积。 在7-15ft / sec的人造气体速度下,致密相流化床中的干酪根富集页岩的磨损减小了这种多孔脆性材料的尺寸,并允许其在出口气流中作为细粒被去除。 残留在流化床中的较大颗粒起源于贫油页岩,因此缺乏表面积并导致吸附能力不利地影响蒸煮。 因此,这些相对粗糙的,耐磨耗的非油吸附颗粒可以有效地用作载热体。 在本发明的另一个特征中,在粗细和精细燃烧的废页岩颗粒中回收显热是在特定条件下操作的两个独立的粗和细流化床冷却器中完成的,以最大限度地传热和能量利用。

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