A root cause investigation team comprised of cross-functional, cross-company experts concluded that the most probable source of the incident was a decomposition-triggered detonation of …

The NOx Gums formed when a conjugated di-olefin, most likely butadiene, carried over from the first two drums in the chilling train to the fifth drum and reacted with NOx gases that had …

The non-explosive, non-shock sensitive NOx-polymer material found in the heat exchanger is a completely new phenomenon in Dow and in the ethylene industry, different from the known …

NOx生成途径主要有三种:温度型，简称 T-NOx;燃料型，简称 F-NOx;快速型，简称 P-NOx。 (1)T-NOx是由空气中的氮气和氧气在高温下生成的，影响NOx生成量的主要因素是烟气中氧含量、 …

2019年5月10日 · 快速型NOx是在碳氢化合物燃料在燃料过浓时燃烧，燃料挥发物中碳氢化合物高温分解生成的CH自由基和空气中氮气反应生成HCN和N，再进一步与氧气作用以极快的速度 …

Nox in olefin feed which react with hydrocarbon to form various type of gums & salts. It acquire some space in cold box of olefin plant due to favorable condition of temperature & pressure. …

NOx gums/salts are potentially unstable compounds that ethylene production facilities must include in their safety program. These compounds can form at cryogenic temperatures and …

2011年2月18日 · NOx in the olefin feed can react with hydrocarbons to form various types of gums and salts. A build up of these impurities in the cold box of the olefin plant can result due …

1990年12月16日 · They concluded the gum was formed by nitrogen oxide contamination of noncondensable gases in the unit's catalytic cracker-used since 1982. Investigators have …

This document provides an overview of the risks associated with Nox gums and salts accumulating in the cold boxes of olefin plants. It outlines a methodology for assessing these …

2019年3月25日 · NOx污染主要来源于生产、生活中所用的煤、石油等燃料燃烧的产物(包括汽车及一切内燃机燃烧排放的NOx)；其次是来自生产或使用硝酸的工厂排放的废气。当NOx与碳氢 …

The AICHE Task Group for NOx Safety has advised the industry that any ethylene plant cold box is potentially vulnerable to accumulation of NOx compounds, and plans to mitigate the …

2013年5月1日 · NOx gums/salts are potentially unstable compounds that ethylene production facilities must include in their safety program. These compounds can form at cryogenic …

NOx gums/salts are potentially unstable compounds that ethylene production facilities should include in their safety program. These compounds can form at cryogenic temperatures and …

吸附法是利用 吸附剂 对NOx的吸附量随温度或压力变化而变化，通过周期性地改变操作温度或压力控制NOx的吸附和解吸，使NOx从气源中分离出来，属于干法脱硝技术。

A relatively warm operating temperature in the cryogenic section of the recovery unit eliminates the potential of NOx accumulation and NOx gum buildup, making the process inherently safe. …

2009年4月29日 · The NOx Gums formed when a conjugated di-olefin, most likely butadiene, carried over from the first two drums in the chilling train to the fifth drum and reacted with NOx …

2013年5月1日 · Brazed aluminum plate-fin heat exchangers (BAHX, commonly known as 'cold boxes') are susceptible to NO x gum/salt accumulation due to equipment operating at cold …

Brazed aluminum plate-fin heat exchangers (BAHX, commonly known as 'cold boxes') are susceptible to NO x gum/salt accumulation due to equipment operating at cold temperatures …