Questions about chlorine transfer agents

It’s quite difficult! There are currently reports on the research and some applications of dechlorinating agents, but there are fundamental difficulties. It’s not necessarily organic chlorines that prevent electrodesalination from removing chlorides; severe emulsification caused by factors such as high crude oil density and high asphaltene content can also lead to difficulties in desalination. Adding dechlorinating agents can improve the dechlorination effect, but based on available data, it’s difficult to determine whether it’s organic chlorines involved. Furthermore, there is still no consensus regarding the types of organic chlorines present in crude oil and the methods for analyzing them. Some quaternary ammonium salts, such as chlorides, are present in crude oil; although electrodialysis is not effective in removing them, the addition of dechlorinating agents yields good results, which is one of the main reasons why such agents are effective today. As for true organic chlorines, namely chlorinated hydrocarbons, it is very difficult to remove them through electrodialysis or chemical agents, whether using catalytic or reactive mechanisms.

So what exactly is a dechlorination transfer agent?

The liquid-phase organic chlorine remover consists mainly of a phase-transfer catalyst; it is added before the electrodesalting of crude oil. During the electrodesalting process, the organic chlorine in the crude oil is converted into inorganic chlorine, which then enters the aqueous phase and can be removed through deshydration during electrodesalting, thereby reducing the chlorine content in the crude oil

The organic chlorine removal process, characterized by phase transfer, can remove 50% to 70% of organic chlorine based on current research and industrial applications.