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    • 36. 发明申请
    • PRESSURIZED FLUIDIZED FURNACE EQUIPMENT
    • 加压流化炉设备
    • US20160273762A1
    • 2016-09-22
    • US14777797
    • 2014-02-14
    • TSUKISHIMA KIKAI CO., LTD.
    • Toshiki KobayashiTakafumi YamamotoKazuyoshi Terakoshi
    • F23C10/16F23J15/00F23G5/30
    • F23C10/16F23G5/30F23G2202/30F23G2209/12F23J15/006F23J15/06F23J2217/101F23J2217/103F23J2217/104F23J2219/40F23J2900/15004F23L15/04F23L2900/05021Y02E20/348
    • Pressurized fluidized furnace equipment includes a fluidized bed furnace (1) that pressurizes combustion air (B) and combusts a material to be treated (A) while fluidizing the same; an air preheater (3) that exchanges heat between a combustion exhaust gas (C) discharged from the fluidized bed furnace (1) and the combustion air (B); a dust collector (4) that removes dust from the combustion exhaust gas (C); and first and second superchargers (5, 6) to which the combustion exhaust gas (C), having undergone the heat exchange in the air preheater (3) and the dust removal in the dust collector (4), is supplied to generate compressed air (D, E). The first compressed air (D) generated in the first supercharger (5) is supplied as the combustion air (B) to the fluidized bed furnace (1) by way of the air preheater (3), and the second compressed air (E) generated in the second supercharger (6) is made to have a higher pressure than that of the first compressed air (D). Accordingly, it is possible to prevent the equipment from having more superchargers than is necessary for normal use although a plurality of first and second superchargers are provided, and to efficiently use the surplus combustion exhaust gas.
    • 加压流化炉设备包括在使燃烧空气(B)加压并使待处理材料(A)进行流化的同时流化床炉(1); 在从流化床炉(1)排出的燃烧废气(C)和燃烧空气(B)之间进行热交换的空气预热器(3); 从燃烧废气(C)除去灰尘的集尘器(4); 并且供给在空气预热器(3)中进行了热交换的燃烧废气(C)和集尘器(4)中除尘的第一和第二增压器(5,6),以产生压缩空气 (D,E)。 在第一增压器(5)中产生的第一压缩空气(D)通过空气预热器(3)作为燃烧空气(B)供给到流化床炉(1),第二压缩空气(E) 在第二增压器(6)中产生的压力比第一压缩空气(D)的压力高。 因此,尽管设置了多个第一和第二增压器,但是可以防止设备具有比正常使用所需的更多的增压器,并且有效地使用多余的燃烧废气。
    • 38. 发明申请
    • Process for recovering terephthalic acid from pulverized product of spent polyethylene terephthalate and system for use in such process
    • 从废聚对苯二甲酸乙二醇酯的粉碎产物中回收对苯二甲酸的方法和用于该方法的体系
    • US20030225299A1
    • 2003-12-04
    • US10424042
    • 2003-04-24
    • Tsukishima Kikai Co., Ltd.
    • Jinichi YazakiKozaburo SakanoNobuyuki FunakoshiKazuho Tanaka
    • C07C051/09
    • C07C51/43C07C51/09C07C51/412C07C51/47C08J11/24C08J2367/02Y02W30/706C07C63/28C07C63/26
    • This invention provides a process a process for recovering terephthalic acid from pulverized products of spent polyethylene terephthalate. This process comprises (1) a decomposition reaction step where the pulverized products of spent polyethylene terephthalate are continuously subjected to decomposition reaction in ethylene glycol in the presence of alkali, which is equimolar or excessmolar relative to the polyethylene terephthalate, so that salt of terephthalic acid and ethylene glycol can be continuously obtained; (2) a solid-liquid separation, dissolution, impurities-removing step where the ethylene glycol is separated from decomposition reaction slurry of salt of terephthalic acid and ethylene glycol, and the solid salt of terephthalic acid is dissolved into water, while insoluble impurities are removed; (3) a neutralization, crystallization step, where solution of said salt of terephthalic acid is neutralized with acid so that terephthalic acid can be crystallized; (4) a solid-liquid separation, washing stop where slurry of terephthalic acid crystals is subjected to solid-liquid separation so that the terephthalic acid crystals can be obtained and washed; and (5) a drying, pulverization step where the washed terephthalic acid crystals are dried and pulverized
    • 本发明提供一种从废聚对苯二甲酸乙二醇酯的粉碎产物中回收对苯二甲酸的方法。 该方法包括:(1)分解反应步骤,其中废聚对苯二甲酸乙二醇酯的粉碎产物在相对于聚对苯二甲酸乙二醇酯等摩尔或过量的碱的存在下在乙二醇中连续进行分解反应,使得对苯二甲酸的盐 可连续获得乙二醇; (2)从对苯二甲酸和乙二醇盐的分解反应浆液中分离出乙二醇和对苯二甲酸的固体盐的固液分离,溶解,杂质去除步骤溶解在水中,不溶性杂质为 删除 (3)中和,结晶步骤,其中所述对苯二甲酸盐的溶液用酸中和,使对苯二甲酸可以结晶; (4)固液分离,其中对苯二甲酸晶体的浆液进行固液分离以使得可以获得和洗涤对苯二甲酸晶体的洗涤停止; 和(5)干燥,粉碎步骤,其中将洗涤的对苯二甲酸晶体干燥并粉碎