substance

Aluminium

The metal. No ChEBI id: ChEBI gives two entries for this InChIKey (CHEBI:28984 aluminium atom, CHEBI:33629 aluminium(0)).

Formula: Al
CAS: 7429-90-5
InChIKey: XAGFODPZIPBFFR-UHFFFAOYSA-N

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Made by

Primary aluminium by Hall-Heroult electrolysis with point-feed prebaked anodesMain productConcept · not reviewed

Used by

No process in the Atlas uses this yet.

When a process with this chemical is added to the library, it appears here.

Routes compared

One route in the Atlas makes Aluminium: nothing to compare yet. A comparison appears when a second route is added.

Per 1 kg of Aluminium: inventory from each route's LCI dataset, unallocated; footprints per the functional unit of their own LCA.

Route	Tier, design maturity, review status	Geography, year	Energy	Feedstocks	Key emissions	Footprint	Comparability
Primary aluminium by Hall-Heroult electrolysis with point-feed prebaked anodespoint-feed prebake cells (PFPB, about 90 % of EU capacity in the BREF); Soederberg cells and the anode baking plant are not modelled	Tier 1 (sourced conceptual)Design maturity: Concept (research)Not independently reviewedDataset review: unreviewed	RER, 2012	Electricity, potline total (AC, with rectifier losses and auxiliaries): 14.7 kWh	Alumina, smelter grade: 1.94 kg Prebaked carbon anode, net consumption: 0.43 kg Oxygen from ambient air (anode air burn and sulfur oxidation): 0.242 kg (free) Aluminium fluoride (bath make-up): 0.0215 kg	CO2 from anode consumption (process emission): 1.54 kg SO2 from anode sulfur, cell gases and roof (no wet scrubber): 0.0173 kg Tetrafluoromethane (CF4) from anode effects: 0.0000536 kg Hexafluoroethane (C2F6) from anode effects: 0.00000649 kg Hydrogen fluoride (gaseous fluoride), stack and roof: 0.000632 kg NOx from anode nitrogen, as NO2: 0.00015 kg Dust (alumina and bath material), stack and roof; size not stated: 0.00115 kg	no footprint	–

ISO 14044 requires a critical review (by a panel of interested parties, ISO/TS 14071) of a comparative assertion intended to be disclosed to the public. These routes are listed side by side for screening; a statement that one is better than another needs that review. None of these routes has had such a review.