Questão 971287

• Banca: CESPE / CEBRASPE
• Órgão: MCT
• Ano: 2012
• Provas: CESPE - 2012 - MCT - Tecnologista Pleno - Tema III; CESPE - 2012 - MCT - Tecnologista Pleno - Tema V; CESPE - 2012 - MCT - Todos os Cargos - Conhecimentos Básicos - Temas III, IV, V e VI; CESPE / CEBRASPE - 2012 - MCT - Tecnologista Pleno - Tema IV; CESPE / CEBRASPE - 2012 - MCT - Tecnologista Pleno - Tema VI
• Disciplina: Inglês
• Assuntos: Interpretação de texto | Reading comprehension

     A pair of new technologies could reduce the cost of capturing carbon dioxide from coal plants and help utilities comply with existing and proposed environmental regulations, including requirements to reduce greenhouse-gas emissions. Both involve burning coal in the presence of pure oxygen rather than air, which is mostly nitrogen. The basic idea of burning fossil fuels in pure oxygen is not new. The drawback is that it is more expensive than conventional coal plant technology, because it requires additional equipment to separate oxygen and nitrogen. The new technologies attempt to offset at least some of this cost by improving efficiency and reducing capital costs in other areas of a coal plant.
Internet: < m.technologyreview.com> (adapted).

According to the text, it can be concluded that

it is mostly the use of pure nitrogen that can help reduce the cost of capturing carbon dioxide from coal plants.

• C. Certo
• E. Errado

Gabarito: E

Comentários

• Inexact- it's the other way around- Nitrogne should be isolated from oxygen, leaving only the latter to react with scorching coal so less green house gas emission ensues.

  errado- exatamente o oposto. Queima do carvao em contato com Nitrogênio é o que acontece atualmente e a ideia é de nao usar mais N.