Process for producing furan from furfural aldehyde
    4.
    发明授权
    Process for producing furan from furfural aldehyde 失效
    从糠醛生产呋喃的方法

    公开(公告)号:US4764627A

    公开(公告)日:1988-08-16

    申请号:US34358

    申请日:1987-04-06

    CPC classification number: C07D307/36

    Abstract: A process of producing furan and derivatives thereof is disclosed. The process includes generating furfural aldehyde vapors and then passing those vapors over a zeolite catalyst at a temperature and for a residence time effective to decarbonylate the furfural aldehydes to form furans and derivatives thereof. The resultant furan vapors and derivatives are then separated. In a preferred form, the furfural aldehyde vapors are generated during the process of converting biomass materials to liquid and gaseous fuels.

    Abstract translation: 公开了一种生产呋喃及其衍生物的方法。 该方法包括产生糠醛醛蒸汽,然后在有效使糠醛醛脱羰的温度和停留时间将这些蒸气通过沸石催化剂形成呋喃及其衍生物。 然后将所得的呋喃蒸汽和衍生物分离。 在优选形式中,在将生物质材料转化为液体和气体燃料的过程中产生糠醛醛蒸汽。

    Fluidizing device for solid particulates
    6.
    发明授权
    Fluidizing device for solid particulates 失效
    固体颗粒物流化装置

    公开(公告)号:US4620795A

    公开(公告)日:1986-11-04

    申请号:US625327

    申请日:1984-06-27

    CPC classification number: B65D88/68

    Abstract: A flexible whip or a system of whips with novel attachments is suspended in a hopper and is caused to impact against fibrous and irregularly shaped particulates in the hopper to fluidize the particulates and facilitate the flow of the particulates through the hopper. The invention provides for the flow of particulates at a substantially constant mass flow rate and uses a minimum of energy.

    Abstract translation: 具有新颖附件的柔性鞭子或鞭子系统悬挂在料斗中,并且被引到料斗中的纤维状和不规则形状的颗粒上,以使颗粒流化并促进颗粒流过料斗。 本发明提供了基本上恒定的质量流率的微粒的流动并且使用最小的能量。

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