Turnaround and Shutdown Decontamination Chemical Cleaner

JPX is the most cost effective decontamination chemical available. It outperforms well-known and more expensive products. JPX injection into your vessel steam out will:

·      Cut steam out time by 2/3

·      Remove hydrocarbons, H²S and benzene, permitting earlier vessel entry

·      Eliminate internal clean-ups normally required for inspection and repair

·      Reduce the time required for exchanger bundle cleaning

JPX is safe for people, the effluent system, and air quality.

JPX has been used in cokers, crude and vacuum units, FCC, hydrotreaters, hydrocrackers, reformers, contactors, separators, and all varieties of columns:

·      See our steam injection or circulation diagrams for an outline of the JPX cleaning process.

Shell, BP, Arco, Mobil, Chevron, ConocoPhillips, Tesoro, and overseas refineries have saved money by utilizing JPX to decrease down time.

Vapor Phase Application of JPX and JPX-E Chemical Cleaner

 

Vapor Phase Application of JPX and JPX-E

Preparatory:

            Obtain simplified process flow diagram review; with operations, the sequence and priority for equipment decontamination.  Mark up diagram to show JPX injection points and vent locations; show flow path for vapor cleaning through process vessels. 

            Prepare a layout page showing sequence and volumes of JPX (or JPX-E).  Time, temperature, results, and rinse columns will be completed as application proceeds.

Application:

Prior to pumping JPX, verify the following, by physically checking:

1)     Vessel is drained – Condensate not hydrocarbon coming from bottom drain connection.  Do not rely on control instrument levels.  They may be plugged or blocked in.

2)     Vessel is vented to relief system, sometimes called blowdown or vapor recovery system.

3)     JPX injection valves into vessel are open, and that only one flow path for JPX exists.

4)     Check and record vessel temperature.  Depending on system flow and vessel size, temperature should be over 200°F after a couple of hours of steaming.

5)     Check rinse line (reflux line) to be free of H.C. and hot via steam.

Begin pumping JPX into vessel:

Typically one drum per 20 minutes.  After pumping ½ of the calculated JPX required, re-check drain line, any top vent connection and reflux (rinse) line for JPX lemon odor to verify vaporization is adequate.  When completed, JPX injection continue steaming for several more hours; then have operations lower steam rates dropping vessel pressure and perform sniff for LEL, benzene, and H₂S.  If vessel is a column, the overhead accumulator would have JPX injected immediately after column JPX injection and would be sniffed at the same time as column.

If sniff OK, start fresh water rinse, hot water is preferred.  Maximize flow of rinse & continue for several hours until bottom drain is clear of soap emulsion.  Caution, do not use accumulator water or reflux pump as water rinse source.  Accumulator may have sludge emulsion from JPX cleaning and could recontaminate column.

After:

Complete layout page info and discuss with operations.  Flush JPX pumps with water.  Remove empty JPX drums to location for later pick up.