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Benzene toluene ethylbenzene & xylene (BTEX) in indoor air has significant harm for human health. This paper designs an experiment platform for alternating adsorption-enhanced catalytic treatment of BTEX by plasma. The experiment platform consists of adsorption/catalysis dual-function module, low-temperature plasma generation module, pipeline system and control system. The development of the experiment platform achieves the green goal of continuous control of low concentration BTEX for a long time without O3 secondary pollution. The teaching application of the platform enriches the form and content of experimental courses such as air pollution control engineering and environmental comprehensive experiment, and helps to cultivate students' innovative thinking and comprehensive ability to solve practical engineering problems. [ABSTRACT FROM AUTHOR]

According to the current situation of light hydrocarbon resources and combined with the market demand, the process engineering technology to produce aromatics, olefins, gasoline and chemical feedstocks from LPG have been studied and developed, and many of them have been widely popularized and applied. The C4 components of FCC ether rich in olefins can be transformed into high-purity aromatics by aromatization technology, ad the yield of aromatics is 56.22%. The ffuidized bed catalytic cracking process with continuous reaction regeneration is a new technology for producing ethylene and propylene from C4 components. Through the recycle of unconverted C4 components and light gasoline, the yields of ethylene and propylene can reach about 60%, and some aromatics can be produced by-product. The catalytic cracking of isobutane into propane, which can efficiently produce ethylene and propylene is a new technology developed in recent years, and the propane yield is as high as 73%-75%. In addition, the technology of producing high octane gasoline from LPG has low investment and low operating cost, which is also one of the ways to utilize LPG. [ABSTRACT FROM AUTHOR]