求助 翻译 哈？ process configuration for sewage sludge a process configuration that was developed for energy and material recovery from sewage sludge treatment is shown in figure 4. in this design, a tubular system of constant pipe diameter is used for the combination of preheater, reactor, and cool-down heat exchanger (modell, 1996). high velocities and the smooth transitions from preheater to reactor to cooldown exchanger help to minimize settling of solids and buildup of scale in the system. scale formation in the preheater is removed periodically by mechanical cleaning devices. the energy required for preheating is obtained from the cooling of the reactor effluent. pressurized pure water is used to carry the heat from the reactor effluent to the preheater. the preheater to cool-down heat exchanger encompassing the recirculating heat transfer loop approximates an adiabatic subsystem. therefore the fluid leaving the cool-down exchanger is near the adiabatic flame temperature of the feed-oxygen mixture. the steam and/or hot water generators shown in figure 4 are thus capable of recovering virtually all of the heating value of the feed-oxygen mixture. as discussed below, the quality of steam or hot water depends upon the maximum temperature available for heat recovery – and the local uses that can be made of the recovered energy. the process of figure 4 also features oxygen and carbon dioxide recovery. by cooling the reactor effluent and separating the phases before depressurization, one obtains a gas phase of co2, o2, n2, and small amounts of h2o and n2o. upon depressurizing this gas phase from 25 mpa down to ~2 mpa, most of the co2 will be liquefied. it is possible to obtain highly purified co2 by-product with a cryogenic distillation column containing ~5 stages. the overhead from the distillation is rich in o2 and can be recycled. the recycle line will require a vent to purge n2 and n2o from the system 下面是我翻译的英文 不过很多专业词 全查不到 污水污泥工艺配置研究了一种污水污泥处理对能源和物料回收的工艺配置，这对于发展能源和物料回收污水污泥处理配置如图 4 所示。在本设计中，管状系统不断的管道用于预热器，反应器，冷却热交换器（ modell, 1996 ）的组合。高的速度和平稳过渡，从反应堆冷却预热器换热器有助减少固体和建设规模在系统的安定。形成规模的预热器除去机械定期清洗设备。预热所需的能量是从反应器出水冷却。加压纯净水是用来进行从反应堆的水预热器的热量。预热器冷却式换热器传热涵盖了循环圈的绝热近似子系统。因此，流体离开降温器是靠近原料氧混合绝热火焰温度。蒸汽和 / 或热水发生器，如图 4 所示因此收回几乎所有的原料氧混合热值的能力。正如下面讨论，可用热回收取决于蒸汽式热水质量的最高温度 - 但可以是回收的能量的本地使用。图 4 的过程中还设有氧气和二氧化碳回收。通过冷却反应器污水和降压分离前的阶段，取得了一个二氧化碳，氧气，氮气阶段， h2o 和少量的 n2o 。当这个由 25 兆帕斯卡减压下气相位 〜 2 mpa 时， co2 的大部分将被液化。它有可能获得一个高纯度从低温蒸馏列包含 〜 5 个阶段的副产品。从蒸馏得到的氧气丰富，可循环使用。在回收生产线中会从系统中需要一个排气口排放 n2 和 h2o 流程模拟与优化，以减低成本。 谢谢 查看更多
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