Declared refinery scheme: fuel used in integrated refining escapes duty, but fuel for electricity generation supplied outside the process is dutiable.
In a declared refinery treated as a deemed warehouse, fuel oil or LSHS used within the integrated refining process for generating steam, producing naphtha, and extracting sulphur was not liable to central excise duty. The refinery scheme under Chapter VII and Rule 143A was treated as self-contained for warehoused goods, so intermediate fuel use in refining was covered. By contrast, fuel used to generate electricity supplied to the State Electricity Board fell outside the refining process and was dutiable. Suppression of the true fuel-use mechanism defeated the limitation defence, though the penalty was reduced because the maximum penalty was not justified on the facts.
Issues: (i) Whether fuel oil or LSHS used within a declared refinery for generating steam required for refining crude petroleum, and for the manufacture of naphtha and sulphur, was liable to central excise duty. (ii) Whether the quantity of RFO or LSHS used for generating electricity supplied to the State Electricity Board was outside the refinery scheme and liable to duty, and whether the demand was barred by limitation or warranted full penalty.
Issue (i): Whether fuel oil or LSHS used within a declared refinery for generating steam required for refining crude petroleum, and for the manufacture of naphtha and sulphur, was liable to central excise duty.
Analysis: The refinery was a declared warehouse and Chapter VII of the Central Excise Rules, 1944 applied to the goods. Rule 143A was treated as a special provision enabling further manufacturing processes in a refinery, and the absence of a separate notification under that rule did not defeat the scheme because the administrative circular of 12-2-1971 was treated as governing the position. Following the earlier Tribunal view in the IOC matter, the refinery scheme was held to be self-contained for warehoused goods, and intermediate use of fuel oil or LSHS in the integrated refining process did not amount to a removable dutiable clearance. The extraction of sulphur as an incidental part of refining, and the use of fuel oil for steam required in producing petroleum products, were treated as falling within the refinery process.
Conclusion: No duty was payable on the fuel oil or LSHS used for generating steam in the refinery or for the manufacture of naphtha and sulphur; the assessee succeeded on this issue.
Issue (ii): Whether the quantity of RFO or LSHS used for generating electricity supplied to the State Electricity Board was outside the refinery scheme and liable to duty, and whether the demand was barred by limitation or warranted full penalty.
Analysis: The use of fuel for generating electricity was distinguished from use in the refining process. Only the quantity relatable to low-pressure steam used in refining could be treated as part of manufacture, whereas the extra fuel used for high-pressure steam to generate electricity supplied to the Board was not covered by Rule 143A. On limitation, the assessee had not disclosed the true fuel-use mechanism, and suppression of facts was found. On penalty, however, the facts did not justify the maximum penalty and the penalty was reduced.
Conclusion: Duty was leviable on the quantity of fuel relatable to electricity supplied to the State Electricity Board, the demand was not barred by limitation, and the penalty was reduced but not set aside.
Final Conclusion: The appeals were allowed in part for the refinery-linked fuel use, but the duty demand concerning fuel used for electricity supplied outside the refining process was sustained, with a reduced penalty in one appeal.
Ratio Decidendi: In a declared refinery treated as a deemed warehouse, intermediate fuel used as part of the integrated refining process is not dutiable, but fuel used for a distinct non-refining purpose such as electricity generation supplied outside the manufacturing process falls outside the special refinery scheme and attracts duty.
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