Document 2Nvdj9rDbynEB9B0byZmnkdZR

M-22*MC (REV. 4-79) Shell Oil Company Shell Chemical Company Interoffice Memorandum JULY 23, 1980 FROM: INDUSTRIAL HYGIENIST TO: 'SUPERINTENDENT - MAINTENANCE - NORTH SUBJECT: SEPTEMBER, 1981 CCU SHUTDOWN - INDUSTRIAL HYGIENE REQUIREMENTS Supplemental Safety and Industrial Hygiene requirements for personnel who will be involved in the September, 1980 Catalytic Cracker Shutdown have been outlined in the attached guideline. The precautionary measures to be required during the shutdown are based on good industrial hygiene practice and address potential problem areas which have been associated with cat cracker shutdowns. Recognized potential health hazards which have been taken into consideration include airborne catalyst dust, welding fume, noise exposure from grinding and chipping, and exposure to polycyclic aromatic containing materials such as slurry oil and residual coke deposits. Additional require ments or modifications to the prepared guideline will be specified as experience is developed in this area. Individuals involved in the CCU Shutdown should be reminded to wear the appropriate type of respiratory protection and protective clothing. Air-supplied respirators are to be worn by personnel performing welding and arc cutting; other personnel are to use air-purifying masks as specified. Efforts should be made in so far as practical to minimize skin contact with slurry oil 'during the initial stages of opening lines in the fractionator slurry system. Crafts should be informed of the hazardous properties of slurry oil as covered by the attached material safety data sheet. Vacuuming of clothing and adequate washing by personnel is recommended before eating and leaving work. Other precautionary measures not specifically included in the attached guideline which will aid in minimizing exposure potential include improved ventilation, and the periodic vacuuming of settled particulate. Questions concerning the required precautionary measures should be directed to the Safety and Industrial Hygiene Department. 01 P. J. Snyder PJS/gri LAM 010453 DFMC-06S48 ALC ichment 1 C r.: C rc r ?h u t r.cvn 1 nd us ; r_i a 1 Jjvgione Guide! ine 1. Respiratory Free action Requirements A. Available Equipment 1. Scott full-face air-purifying mask with high efficiency dust cartridges (Part No. 652L) 2. MSA full-face constant flow airline mask with attached protective weld ing lens (Part No. 461-699 and Part No. 449-646) 3. MSA half-face constant flow welder's airline mask (Part No. 460-862) B. Contaminant or Activity______________ Minimum Respiratory Protection Vessel Entry Cartridge Dust Mask (No. 1 above) 3rd Stage Separator, Regenerator Reactor at all times including - cleaning - preparation work - inspection - observation Fractionator & furnace during dust generating activities Fractionator and Slurry Oil System A. If a heavy cool liquid: High boiling aromatic oils None normally required. B. If a solid requiring chipping: Cartridge Dust Mask (No. 1 above) Sandblasting - Non-Silica Containing Grit A. Sandblasters: Blaster's Air-line Hood B. Helpers, Transients: Cartridge Dust Mask (No. 1 above) Cat Cracker Catalvst Dust Cartridge Dust Mask (No. 1 above) LAM 010454 DPMC-06549 Con l ar ir.2n r or Ac t i v 11 v WeJ ding, Stainless Steel: Hex Metal (chrome) Plenum Cyclones Fluffing Lines Precipitator Clips Etc. on Inside Welders: Airline Mask (No. 2 or 3 on the previous page) Helpers, Transients: Cartridge Dust Mask (No. 1 on the previous page) 2. Use of Wash Facilities and Protective Clothing ' A. Appropriate protective clothing, to prevent skin contact as far as practical (including slicker suits) washing after incidental contact and daily showering at the end of the shift required for all personnel who have anticipated exposure potential to polycyclic aromatic containing materials: - All cleaning, preparation work inside vessels including fractionator, and on slurry oil system; removing or washing slurry oil and coke deposits. B. Appropriate protective clothing, to prevent skin contact as far as practical, washing after incidental contact, and daily showering at the end of the shift made available. - unflanging slurry system lines - slurry system pump removal and cleaning - ancillary factionator personnel etc. C. Vacuuming of dust on clothing, washing prior to eating, and leaving work required for all personnel cutting, grinding, welding or other-wise exposed to chrome containing metals. Vacuuming of clothing by other personnel recommended but not required. D. Where asbestos is envoi intered, special precautionary measures will be imple mented which are consistent with the Shell DPMC Asbestos Safety Order. ^ Hearing Conservation Measures LAM 010455 Contaminant or Accixitv Required Protective Measures ; Arcing, Grinding, Hammering. Chipping Appropriate hearing pro!fction required. By i-.~o:mel directly involved in these activities and in the immediate vicinity of 111 e noise source. DPMC-06850 J-MC (REV. 4-7,9) ATTACHMENT I Shell Oil Company Shell Chemical Company Interoffice Memorandum JULY 23, 1980 FROM* INDUSTRIAL HYGIENIST TO: ""SUPERINTENDENT - MAINTENANCE - NORTH SUBJECT: SEPTEMBER, L9BO-GCU SHUTDOWN - INDUSTRIAL HYGIENE REQUIREMENTS / tet%T. C'/e-fcnS Supplemental Safety and Industrial Hygiene requirements for personnel who will be involved in the 4 i^%^lCL^FXnJS'- Fee s/^+Dc^/v have been outlined in tne attacnea guideline. The precautionary measures to be required during the shutdown are based on good industrial hygiene practice and address potential problem areas which have been associated with shutdowns. Recognized potential health hazards which have been taken into consideration include airborne catalvst dustwelding fume, noise exposure from ,vlark's ^.pp^-W a/<j and exposure to polycyclic aromatic containing materials such as residual coke deposits. Additional require ments or modifications to the prepared guideline will be specified as experience is developed in this area. Individuals involved in thef^D^crr*(vr<~s^-ra,..^3hould be reminded to wear the appropriate type of respiratory protection and protective clothing. Air-supplied respirators are to be worn" by personnel performing welding and arc cutting; other personnel are to use air-purifying masks as specified, efforts should be made in so far as practical to minimize skin contact with slurry oil 'during the initial stages of opening lines in the fractionator slurry system. Crafts'should be informed of the hazardous properties of slurry oil as covered by the attached material safety data sheet. Vacuuming of clothing and adequate washing by personnel is recommended before eating and leaving work. Other precautionary measures not specifically included in the attached guideline which will aid in minimizing exposure potential include improved ventilation, and the periodic vacuuming of settled particulate. Questions concerning the required precautionary measures should be directed to the Safety and Industrial Hygiene Department. P/J. llUldifU P. J. Snyder PJS/gri LAM 010450 DPMC-06845 Cat Cracker Shutdown Industrial Hygiene Guideline Respiratory Protection Requirements A. Available Equipment 1. Scott full-face air-purifying mask with high efficiency dust cartridges (Part No. 652L) 2. MSA full-face constant flow airline mask with attached protective weld ing lens (Part No. 461-699 and Part No. 449-646) 3. MSA half-face constant flow welder's airline mask (Part No. 460-862) B. Contaminant or Activity_____________ Minimum Respiratory Protection Vessel Entry 3rd Stage Separator, Regenerator Reactor at all times including - cleaning - preparation work - inspection - observation Fractionator & furnace during dust generating activities Cartridge Dust Mask (No. 1 above) Fractionator and Slurry Oil System High boiling aromatic oils A. If a heavy cool liquid: None normally required. B. If a solid requiring chipping: Cartridge Dust Mask (No. 1 above) re Sandblasting - Non-Silica Containing Grit A. Sandblasters: Blaster's Air-line Hood B. Helpers, Transients: Cartridge Dust Mask (No. 1 above) Cat Cracker Catalyst Dust Cartridge Dust Mask (No. 1 above) LAM 010451 f f DPMC-06846 ' Cur. tarn: nan t or Activitv Welding Stainless Steel: - Hex Metal (chrome) - Plenum - Cyclones - Fluffing Lines - Precipitator Clips - Etc. Minimum Fesniratcrv Protection Inside Welders: Airline Mask (No. 2 or 3 on the previous page) Helpers, Transients: Cartridge Dust Mask (No. 1 on the previous page) 2. Use of Wash Facilities and Protective Clothing A. Appropriate protective clothing, to prevent skin contact as far as practical (including slicker suits) washing after incidental contact and daily showering at the end of the shift required for all personnel who have anticipated exposure potential to polycyclic aromatic containing materials: - All cleaning, preparation work inside vessels including fractionator, and on slurry oil system; removing or washing slurry oil and coke deposits. B. Appropriate protective clothing, to prevent skin contact as far as practical, washing after incidental contact, and daily showering at the end of the shift made available. - unflanging slurry system lines - slurry system pump removal and cleaning - ancillary factionator personnel - etcT C. Vacuuming of dust on clothing, washing prior to eating, and leaving work required for all personnel cutting, grinding, welding or otherwise exposed to chrome containing metals. Vacuuming of clothing by other personnel recommended but not required. D. Where asbestos is encountered, special precautionary measures will be imple mented which are consistent with the Shell DPMC Asbestos Safety Order. 3. Hearing Conservation Measures Contaminant or Activitv Reouired Protective Measures j Arcing, Grinding, Hammering, Chipping Appropriate hearing protection required. By personnel directly involved in these activities and in the immediate vicinity of the noise source. --------------------------------- LAM 010452 DPMC-06847