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关于采用常温氧化铁对新中变半水煤气进行预脱硫的建议
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作者 高元 《中国化工贸易》 2013年第4期195-195,共1页
净化新中变由于原设计中干法脱硫采用中温氧化锌(ZnO)工艺,而半水煤气中含硫量较高,致使氧化锌使用时间较短,且氧化锌价格高,约3万/吨,造成新中变系统脱硫成本居高不下,本文提出了采用常温氧化铁对新中变半水煤气进行预脱硫的... 净化新中变由于原设计中干法脱硫采用中温氧化锌(ZnO)工艺,而半水煤气中含硫量较高,致使氧化锌使用时间较短,且氧化锌价格高,约3万/吨,造成新中变系统脱硫成本居高不下,本文提出了采用常温氧化铁对新中变半水煤气进行预脱硫的改进措施。 展开更多
关键词 中温氧化锌 常温氧化铁 新中变系统 水煤气
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Boehmeria nivea var. strigosa (Urticaceae), a new variety from Southwest China 被引量:1
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作者 ZHAO Ying Richard I.MILNE +2 位作者 LI Zhipeng Amos KIPKOECH WU Zengyuan 《广西植物》 CAS CSCD 北大核心 2024年第9期1617-1624,I0001-I0006,共14页
Boehmeria nivea var.strigosa Zeng Y.Wu&Y.Zhao,a new variety of B.nivea(Urticaceae)from Southwest China,is here described based on evidence from morphology and molecular phylogeny.This new variety is mainly charact... Boehmeria nivea var.strigosa Zeng Y.Wu&Y.Zhao,a new variety of B.nivea(Urticaceae)from Southwest China,is here described based on evidence from morphology and molecular phylogeny.This new variety is mainly characterized by its green abaxial leaf blade,partly connate stipules,and densely patent strigose hairs on stems and potioles.The phylogenetic analysis based on rbc L,nrDNA and rbc L+nrDNA datasets,revealed that all individuals of B.nivea var.strigosa formed a monophyletic group.The conservation status of B.nivea var.strigosa is assessed as“Near Threatened”(NT)according to IUCN evaluation criteria.The discovery of this new variety is not only crucial for the taxonomy of ramie,but also provides reference for the exploration and utilization of ramie. 展开更多
关键词 Boehmeria nivea MORPHOLOGY molecular phylogeny new variety Southwest China YUNNAN
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