液氨硝酸装置工艺流程
    英文回答：
    Liquid Ammonia-Nitric Acid Process Flow.
    The liquid ammonia-nitric acid (LAN) process is a widely used industrial process for the production of nitric acid (HNO3) and ammonium nitrate (NH4NO3). The process involves the following main steps:
    1. Ammonia Oxidation: In the first step, ammonia (NH3) is oxidized to nitric oxide (NO) in a platinum-rhodium catalyst-lined reactor. The reaction is exothermic and releases a significant amount of heat.
    2CH3NH2 + 5O2 → 4NO + 6H2O + heat.
    2. Nitric Oxide Conversion: The nitric oxide produced in the first step is then converted to nitrogen dioxide (NO2) in a second reactor. The reaction involves the oxidation of NO with additional oxygen.
    2NO + O2 → 2NO2。
    3. Nitric Acid Absorption: The nitrogen dioxide produced in the second step is absorbed in water to form nitric acid. The absorption process takes place in a series of packed towers or absorbers.
reactor4
    3NO2 + H2O → 2HNO3。
    4. Ammonium Nitrate Production: In the final step, nitric acid is reacted with ammonia to form ammonium nitrate. The reaction takes place in a neutralization reactor.
    HNO3 + NH3 → NH4NO3 + H2O.
    The liquid ammonia-nitric acid process is a continuous process that operates at high pressures and temperatures. The products, nitric acid and ammonium nitrate, are widely used in the production of fertilizers, explosives, and various other industrial chemicals.
    中文回答：
    液氨硝酸装置工艺流程。
    液氨硝酸（LAN）工艺是一种广泛应用于工业上生产硝酸（HNO3）和硝酸铵（NH4NO3）的流程。该工艺主要包括以下几个步骤：
    1. 氨氧化，第一步，氨（NH3）在铂铑催化剂内衬反应器中被氧化成一氧化氮（NO）。该反应是放热反应，会释放大量的热量。
    2CH3NH2 + 5O2 → 4NO + 6H2O + 热量。
    2. 一氧化氮转化，第一步生成的一氧化氮在第二个反应器中转化成二氧化氮（NO2）。该反应涉及NO与额外的氧气氧化。
    2NO + O2 → 2NO2。
    3. 硝酸吸收，第二步生成的两氧化氮在水中吸收形成硝酸。吸收过程在多级填充塔或吸收塔中进行。
    3NO2 + H2O → 2HNO3。
    4. 硝酸铵生产，最后一步，硝酸与氨反应生成硝酸铵。该反应在一个中和反应器中进行。
    HNO3 + NH3 → NH4NO3 + H2O.
    液氨硝酸工艺是一个连续的工艺过程，在高压和高温下进行。产品硝酸和硝酸铵广泛用于生产化肥、和其他各种工业化学品。

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