英语翻译气相催化氧化-碱液吸收法处理NOx工业废气工艺系统初步设计摘 要\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05氮氧化物(NOx)对生态环境和人类健康造成极大的危害,成为当前环境领域的

英语翻译气相催化氧化-碱液吸收法处理NOx工业废气工艺系统初步设计摘 要\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05氮氧化物(NOx)对生态环境和人类健康造成极大的危害,成为当前环境领域的
英语翻译
气相催化氧化-碱液吸收法处理NOx工业废气
工艺系统初步设计
摘 要
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\x05氮氧化物(NOx)对生态环境和人类健康造成极大的危害,成为当前环境领域的重要研究课题之一.[14]含NOx工业废气常用的脱硝方法有吸收法、氧化-吸收法和吸附法.本设计针对制药厂排放的含NOx废气氧化度低、常温常压排放的特点,采用气相催化氧化-碱液吸收法进行工艺设计.
\x05本设计工序包括：NOx废气除水和氧化,两级吸收塔吸收NOx废气,副产物NaNO2的分离提纯和NaNO3的分离提纯三部分.其中,氧化除水吸附剂选用活性炭,催化剂选用ZSM-5分子筛,吸收塔采用填料塔,吸收液采用NaOH溶液.
\x05效果：经过两级吸收塔吸收处理,最终NOx出口排放浓度为0.14mg/m3,排放流量为1.256kg/h,小于国家NOx排放标准（GB16297-1996）：浓度≤0.15mg/m3,40m排气筒流量≤4.4kg/h.吸收液经简单处理可得具有一定经济价值的副产物NaNO2380.1t/a,和NaNO3423.7t/a.（产量）,总运行成本为255.53万元/年,副产品效益为216.58万元/年,实际操作成本38.95万元.

英语翻译气相催化氧化-碱液吸收法处理NOx工业废气工艺系统初步设计摘 要\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05\x05氮氧化物(NOx)对生态环境和人类健康造成极大的危害,成为当前环境领域的
The gas phase catalytic oxidation - the alkali absorption method to handle NOx industrial emissionsPreliminary design of process systemsAbstractNitrogen oxides (NOx) cause great harm to the ecological environment and human health, one has become an important research topic for the field of environment. [14] The denitration method commonly used in industrial emissions containing NOx absorption method, oxidation - absorption and adsorption. The design for the pharmaceutical factory emissions including NOx exhaust gas oxidation, the emission characteristics of normal temperature and pressure, using a vapor phase catalytic oxidation - alkali absorption process design.The design process include: the exhaust of NOx in addition to water and oxidation, two absorber to absorb NOx emissions, byproducts of separation purification of NaNO2 and NaNO3 the separation and purification of three parts. The selection of activated carbon oxidation which, in addition to water adsorbent, catalyst selection of ZSM-5 zeolite, the absorber tower, absorption solution using NaOH solution.Results: After two absorber absorption treatment, the final NOx concentration of export emissions 0.14mg/m3 emission flow rate of 1.256kg / h, less than the national NOx emission standard (GB16297-1996): the concentration of ≤ 0.15mg/m3 40m row The pump flow rate ≤ 4.4kg / h. Absorption of liquid by simple treatment with a certain economic value byproduct NaNO2380.1t / a, and NaNO3423.7t / a. (Yield) of total operating costs of 2.5553 million yuan / year, by-product benefits of 2.1658 million yuan / year, the actual operating costs 389,500 yuan.
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