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Methanol is added during drilling/recovery process. Recently it was given in an article that Bonga crude (from a new Nigerian field)had high methanol content. Regards,

Request to provide information on the effects of presence of methanol in crude. Has any refinery processed crudes having high methanol content ? What are the experiences ?

Can you pl give us the vendor name of HPRT supplier ? Thank you and regards

Request to provide experiences of using HPRT in refineries (DHDS, Hydrotreaters, Hydrocrackers etc).

Request to provide experiences of using hydraulic pressure recovery turbines in refineries. Vendors/suppliers/designers of HPRT is also required. Thank you

Is anybody awaare of installing rupture disc at the upstream of crude distillation column relief valve inlet line, to prevent corrosion of the relief valve internals. If yes, what is the metallurgy and set pressure selected

1. What is the limit normally allowed for mercury in crude ? 2. What are the harmful effects ? (Pl give references) 3. Is there any treatment to remove mercury ? 4. Apart from LPG and naphtha will mercury be found in any other products after refining ? 5. What are the mercury limits being...

The quantity involved is 1.5 m3 of 20% Nitric acid. The elements will be washed with potash solution before acid wash. We are going to do a Hazop study on this cleaning operation. It will be helpful for us if any specific issues to be considered in the Hazop are given.

Thank you for the reply. The tank will be heated by steam coils inside the container. The filter elements will be steamed for removing oil, first and immersed in alkali and then immersed in nitric acid. Spent acid and alkali will be drained to effluent system after neutralisation.

Can anyone please tell me what is the mettallurgy of a container for Nitric acid ? The nitric acid is to be kept in a tank with heating coil (for heating upto 80 deg C) for cleaning of diesel filter elements.

The reformer effluent contains large quantities of steam condensate and CO&CO2. If any cold areas are there this low pH condensate condenses and attacks the metal. Hence selection of suitable metallurgy that will withstand a pH of 4 will solve the problem. The metallurgy selected should have...

Is online relief valve pop test taken up in process gas boilers/steam generators, like Hydrogen plant naphtha-reformer steam gen or sulfur condensers ? Some inspectors are insisting on this (inpectors are with mechanical background)