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1、UNIPOL PP Process DescriptionUNIPOL PP工艺过程描述1Description of the Contract Plant 合同工厂描述2UNIPOL PP Process Unit UNIPOL聚丙烯工艺装置3Auxiliary Process Facilities 辅助工艺装置UNIPOL PP PROCESS DESCRIPTIONUNIPOL PP工艺过程描述1 Description of the Contract Plant 合同工厂描述The Contract Plant consists of a polypropylene process u
2、nit designed to produce 400 KTA of pelleted polypropylene from propylene based on UNIPOL PP Technology licensed by Union Carbide Chemicals & Plastics Technology LLC, a subsidiary of The Dow Chemical Company. The UNIPOL PP Process is a low-pressure gas-phase fluidized bed process for the manufacture
3、of PP resins.合同工厂包含一套基于UNIPOL PP 技术的生产40万吨/年的聚丙烯工艺装置，该技术转让自陶氏化学公司下属的联合碳化物（联碳）化学和塑料技术公司。 UNIPOL PP 工艺技术是一项用于生产聚丙烯树脂的低压气相流化床工艺。In addition to the UNIPOL PP Process, resin handling and blending facilities are also included in the Contract Plant battery limits. Other auxiliary facilities include utility
4、 distribution, flare and plant infrastructure systems. The PDP provides adequate information to allow these systems to be easily designed by the Engineering Contractor, resulting in savings to the Licensee. The product bagging area is outside the Contract Plant battery limits and will be designed by
5、 the Licensee. 在UNIPOL PP 工艺之外，树脂处理和掺混也包括在本合同工厂范围之内. 其他辅助工艺设施包括公用工程分配，火炬，工厂基础设施。工艺包提供了足够的信息使工程承包商能很容易的设计这些系统,从而使专利受让方节省投资. 产品包装区域是在合同工厂之外，由该技术买方设计。2UNIPOL PP Process Unit UNIPOL聚丙烯工艺装置The UNIPOL PP plant ISBL is comprised of the following process areas. UNIPOL聚丙烯工厂界区由下列工艺单元组成：A.Raw Material Supply a
6、nd Purification 原料供应和精制B.Propylene Purification丙烯精制C.Reaction聚合反应D.Resin Degassing树脂脱气E.Vent Recovery尾气回收F.Resin Additive Handling添加剂的加入G.Pelleting造粒Each is described in detail in the following sections. No catalyst preparation is necessary SHAC catalyst is delivered to the plant ready to use. No ga
7、s/solid separation is needed due to the unique design of the reactor and product discharge system. The process units listed above are included in the Licensors Process Design Package (PDP). 每一单元都将在下面的章节详细描述催化剂制备是不需要的，因为卖方会将直接可用的SHAC催化剂运到工厂。由于特殊的反应器和产品下料系统的设计，也无需单独的气固分离装置以上所列的工艺装置都包含在专利商的工艺设计包(PDP)中A
8、.Raw Material Supply and Purification (Part 1) 原料供应及精制（第1部分）Ethylene, nitrogen, and hydrogen are delivered to the battery limits by pipeline. Co-catalyst, T2, is received from vendor shipping containers with these shipping containers stored in the ISBL area.乙烯，氮气和氢气通过管线送至界区边界。助催化剂三乙基铝则来自储存在界区内的厂商运输过
9、来的储罐。Ethylene from Battery Limits is compressed to 635 psig in the Ethylene Compressor (K-1003) and heated to 100C in the Ethylene Preheater (E-1006) before passing through the CO Removal Vessel (C-1008). The ethylene is then cooled down to 40C in the Ethylene After-Cooler (E-1010) before being fed
10、to the Ethylene Dryer (C-1012) for removal of water, miscellaneous polar compounds and carbon dioxide. Finally, ethylene is passed through the Ethylene Filter (Y-1002) to remove particulate contamination before it is sent to the reaction area.从界区外来的乙烯先经过乙烯压缩机(K-1003)压缩至635 psig，然后通过乙烯预热器(E-1006)加热至1
11、00C，再进入脱一氧化碳床(C-1008)。然后乙烯通过乙烯后冷却器(E-1010)冷却至40C， 再通过乙烯干燥器（C-1012）以除去水、各种极性成分和二氧化碳。最后，乙烯再经乙烯过滤器（Y-1002），去掉颗粒杂质，而后才被送至反应系统。Nitrogen is received from the boundary limits and the flow is split between different end users. Nitrogen not requiring purification is passed through a Filter (Y-1101) before be
12、ing sent to the process. Purification bed regeneration nitrogen is fed directly to the N2 Regeneration Heater (E-2114) without purification or filtration. Nitrogen for both Purified and High Pressure Purified end uses is passed through the Nitrogen Dryer (C-1112) to remove water. From the Dryer outl
13、et, Nitrogen passes through the Nitrogen Filter (Y-1115) to remove particulate contamination. A portion of this filtered nitrogen is fed to a small booster Compressor (K1102) which is used to increase the pressure of the nitrogen to its normal operating pressure of about 660 psig (4,551 kPag) for fe
14、ed to the PP reaction system. High pressure nitrogen is passed through a Filter (Y1116) to remove particulate contamination prior to being fed to the process. 由界区外来的氮气分流至不同的最终用户。不需要精制的氮气，只需在送至工艺区之前通过过滤器(Y-1101)。 精制床再生氮气不需要经过精制或过滤就可直接送到氮气再生加热器(E-2114)。 需要精制的氮气和高压精制的氮气会经过氮气干燥床(C-1112)去除水。从干燥床出来的氮气经过氮气
15、过滤器（Y-1115）去除颗粒杂质。 这股过滤氮气的一部分会进入一个小的压缩机(K-1102)， 升高氮气的压力至进入聚丙烯反应系统的正常操作压力 660 psig (4,551 kPag)。 高压但其在进入工艺系统之前通过一个过滤器(Y-1116)去除颗粒杂质。 Hydrogen from the boundary limits is passed through the Methanator Heater (E-1204) which increases the Hydrogen temperature to between 100C and 150C. At that temperatu
16、re, the Hydrogen enters the Methanator (C-1205) for the removal of carbon dioxide and carbon monoxide. The catalyst contained in the Methanator converts the CO and CO2 to Methane and Water. Methane is an inert in UNIPOL Reactor. The Hydrogen leaving the Methanator is cooled in the Methanator Aftercooler (E1206). From the Aftercooler, Hydrogen pass
