A method for using alumina-carbon agglomerates to capture aluminum vapor species and utilize waste heat from off-gases in a vapor recovery reactor to form a recyclable material is also disclosed.
Sulphuric acid production based on sulphur, different from on pyrite or off-gases, has diversified process arrangement for drying and absorption due to permittinp higher concentration of drying acid.
硫磺制酸不同于矿制酸和冶炼烟气制酸，它可采用较高的干燥酸浓度而使干燥与吸收工艺流程多种多样。
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They give off a lot of greenhouse gases (especially CO2) into the air. This warms the earth.