Lurgi coal gasification systems utilize___________________?
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Answer: D. Larger quantity of coal can be processed
Explanation
Lurgi gasifiers are large-capacity, pressurized moving-bed reactors capable of processing substantial quantities of coal. Continuous counter-current operation allows these industrial gasifiers to handle massive daily fuel tonnages. Pressurized reactor designs increase gas throughput rates and improve overall volumetric efficiency. Lurgi gasification is a well-established dry-bottom moving-bed technology utilizing steam and oxygen. Moving-bed gasifiers feed solid coal from the top while reactant gases enter from the bottom grate. Large-scale synthetic natural gas plants rely on high-capacity gasifier units to meet energy demands.
Commercial coal gasification plants require high-throughput reactors to remain economically viable. Processing large quantities of solid fuel efficiently is crucial for large-scale chemical manufacturing. Lurgi technology historically played a major role in regional synthetic fuel and power production. Option A is incorrect because Lurgi gasifiers can process non-coking and certain weakly coking coals. Option B is incorrect because Lurgi systems achieve high overall carbon conversion efficiencies. Option C is incorrect because moving-bed gasifiers feature lower solid entrainment than entrained-flow types.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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