We have proposed to install a "hot separator" in the recycle gas loop of a heavy naphtha hydrotreater unit operating at a pressure of 65 barg. The configuration which we are contemplating will be similar to kerosene hydrotreater units which usually have both high temperature and low temperature high pressure separators to enable liquid condensed at high temperature to be directly sent to the stripper without cooling. Concerns have been raised by the process licensor that chlorides may be condensed with liquid in hot separator and reach the stripper with feed thereby causing choking/corrosion in stripper. Does anyone have any experience of operating a hot separator in a heavy naphtha hydrotreater? Simulations predict significant heat recovery potential from this project in line with savings achieved in several similar projects in Diesel Hydrotreater units. Can anyone share experience of discovering precipitated chloride salts in the high temperature combined feed effluent exchangers (operating over 200 deg C) during cleaning operation?