Document 9DKdvrp1MO6meZpbGMX9mZxq

r n-' i-'ii-.K.t-t-JHU, HULLAND S CQ:LTD. //V \\ /( V l --- --. - - -- -- -- 3njd'jcer4 of refractory rr#tsrt*ls. 39! Ful*ro=d Road, Sheffield SIC 3G3. TaltD^one C72 3C3921 110 lineal- Tale* 5442S Registarao Offc* Re^iatarao m Lng'snc.N&.J254ia VAT Rag. No. 172 37iS S3 AJN/KT \ 8th July, 1980. Air Products a Chemicals Ir.c. , Escambia Plant, P.O.Box 467 r Pensacola, Florida 32592, U.S.A. Dear Sirs, Re: Proposed use of PH/NUA21 Catalyst in your Methanol Plant Reformer We ccnfirm that Pi ex ford Holland & Co.Ltd. will accept the return, of all normal radioactive waste (contaminated coveralls, radioactive dust, used catalyst etc.) which arise during the leading/unloading of our PK/NUA21 catalyst, to the United Kingdom, for disposal at an approved dumping site within the United Kingdom. All costs to be borne by client. The regulation packing requirements and current disposal costs are outlined in the attached publication. Yours faithfully, for PICKf'OAD HOLLAND & CO. LTD. hL:J. vvLCuAi. i! i7>. A.J.NORMAN Technical Sales Manager, Catalyst Dept. Enos A member of the Dy6f' Group of Companies AP00054429 i Ml___) C^3L UU.T L I 1___J. Product of rffi-sc'-o-y material*. 331 FJwood Road. Shaffiald SIC 3G3. Telsphona 0742 303S21 :o l.nea). Telex =4425 Regi*tr*o OfTit* m England. So. 12341-4 VAT Reg No.(72 27lS 59 Disposal cf used NUA21 plus ether radioactive waste. 1 - Regulations The regulations for shipping usad NTJA21 are as strict as those fcr shipping new catalyst ar.a must be fully complied with. The recuirements are as follows. The catalyst must be loaded in good, rust free steel drums conforming to the International Atomic Energy Authority (IATA) Transport Regulations for Type 'Ar packages. In cur experience the thickness of the steel including the lid should be rot less than 0.048 inches (1.2mm). The catalyst should be packed inside a polythene liner insice the drum or in a number of smaller polythene bags. The radiation requirements are that toe dose rate measurable on the outside of the steel drums ( radiation) must not exceed 0.5mRem/hour and the removable surface contamination on the drums -3 2 Eust be less than lO ^xA.Ci/om . To reduce transport costs the catalyst should be packed in drums of optimum size 23 inches dia (58.5 cms) by 35.1/2 inches high (35 cms) . Four drums should be scrapped on a wooden pallet,, size 44 x 44 inches (112 x 112 cms) , which will fit Side by sine in container vessels. 2. .kethcd c5 disposal. Pickford Holland have an arrangement with British Nuclear Fuels Ltd. for the disposal of spent NUA21 plus ether radioactive waste arising from the charging and discharging of the catalyst, in a Client's reformer tubes. Tire arrangements call for the following instructions to be carried out. Upon arrival at a U.K. port, the containers holding the spent NUA21 plus waste raterial must be unloaded for onward transmission via road transport to Pickford Holland works at West Eunvick, Co.Durham. A BNFL Inspector will inspect the drums at Pickford Holland works. A member of the D_yon Group of Comptnies continued............. AP00054430 Disposal of used NUA21 plus other radioactive waste (cont' d) . After acceptance for dumping, the spent catalyst plus waste material will be taken by a special BNFT. lorry from Pick ford Holland works to the approved dumping site. 3. Cost of disposal. \ (a) Provision of polythene bags, drums and pallets; Client's liability, (b) Transport from Client's site to FC5 port of Client's choice; Client's liability (c) Shipping costs fron: port of Client`s choice to U.K.port; Client's liability. (d) Unloading from containers on to road lorries and transport to West Hunwick; 60.00 per tonne. (el Inspection at West a unwick and transport to dumping site; 19.625 per tonne. (f) Dumping charge; 12.25 per tonne. - Sub Total 41.375 per tonne. (g) Pickforc Bolland handling charge; 150 or 10% of the subtotal, whichever is the greater. Pic): ford Holland have no control over the prices shown in items (d) , (e) and () which are therefore given without guarantee. AP00054431 PRECAUTIONS TO DE TAKEN WHEN STORING, HANDLING AND USING NICKEL URANIUM STEAM REFORMING CATALYSTS by Hill and A.P, YJrixon Pickford, Holland and Cc.Ltd. Contract No. 6/1017 National Radiological Protection Board Marvell, Didcot, Oxon. Oxll ORQ - AP00054432 Abstract This report has been prepared by the Katicnal Hadiolccical Protection Board for Pickfcrd, Holland and Co. Ltd. The potential hazards associated with the use of nickel uranium steam refemirg catalysts, which are slightly radioactive. have been assessed in the light of the recommendations of the 'International Comission. on Radiological Protection. It is concluded that these catalysts can be used safely provided sens sinple industrial hygiene procedures are followed. The roost important of these procedures are the wearing of gloves when handling the catalyst and the use of techniques to reduce dust levels when leading sr.d unloading reformer tubes. Special medical supervision of workers should not be necessary. AP00054433 Nickel urmivn rtoar. reforming catalysts ccnt-ir. depleted uranium which Ir* slightly-radio-active, hov/cvcr, the hazard:: aczcciatcd with this material a_rc negligible if simple prccautionc arc token to ensure good indurtrial hygiene. Hie catalysts consist of uranium oxide, nickel oxide and a small amount of barium, supported on alumina. I^a main problem arising- from their use io due to tiic dust produced during .handling, and nest of the precautions are therefore directed at reducing duct levels and hence intakes of duct. ' 2. RADIOLOGICAL PROTECTION DATA 2.1 Properties of Depleted Uranium Naturally occurring uranium consists of three isotopes: uraniun-230 (99 3#) uranium-235 (0.7?o) and uraniua-23U (O.OOCj-a). Depleted uxaniuj: has a lower activity than natural uranium since part of the uxoniun-235 (and some of the uranium-23U) has been artificially removed, typically depleted uranium contains 0.3/3 uranium-235* All three isotopes of uranium enitc-C-radiation and produce daughter ^isotopes which art also radioactive, emitting c*-, p end Y -radiation. These .three types of radiation will therefore be emitted by depleted uranium catalysts. Alpha-radiation has a very short range and is stepped by, for example a fev/ centimetres of air or the dead layer of the chin. External to the body it therefore presents no hazard but internally it is the radiation of principal concern. Since the catalyst is in insoluble form the organs of the body chiefly affected by eating or breathing in the catalyst v;ill be the gastro-intestinal tract and the lur.g respectively. Seta-radiation hac a somewhat longer range and if the catalyst is handled directly this can cause external irradiation of the skin and hands. Eowevcr, any normal form of' containment of the catalyst will eliminate this since, for example, . 1.2j mm of steel is sufficient to completely stop the radiation. Gamma-radiation is much more penetrating than or (Z -radiation but the intensity decrcEvses rapidly with distance. In view of its penetrating nature it can cause irradiation of the whole body and is the only radiation, of interest when the catalyst is contained in storage drums or reformer tubes, 2.2 basic Standards The basic standards of radiological protection arc those of the International Commission on Radiological Protection, ICRP, who have laid down maximum permissible levels of radiation exposure^/. Ihece levels have been accepted internationally and those which a^'c relevant to this assessment are given in Table 1 . AP00054434