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Reactions of magnesium formate on supports
Author(s) -
Han QiaoFeng,
Yang XuJie,
Deng LiJun,
Wang Xin,
Lu LuDe,
Hua WanSheng
Publication year - 1993
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19930110505
Subject(s) - chemistry , dehydrogenation , magnesium , inorganic chemistry , methanation , formate , catalysis , decomposition , hydrogen , thermal decomposition , adsorption , dehydration , zeolite , phosphorus , organic chemistry , biochemistry
Thermal decomposition of supported magnesium formate has been studied by gas chromatography. The reaction paths of decomposition of supported magnesium formate depend on the nature of the supports. For Mg(HCO 2 ) 2 /HZSM‐5, the zeolite behaves as a dehydration catalyst to give CO and H 2 O at lower temperatures; when the zeolite is modified by phosphorus, the methanation reaction will be partly restrained. In the case of Mg(HCO 2 ) 2 /AC, strong adsorption of CO 2 leads to the formation of the shoulder peak of CO 2 at higher temperatures, however, CH 4 disappears after modified by phosphorus. For Mg(HCO 2 ) 2 /Al 2 O 3 , the dehydrogenation of HCO 2 − takes place on the surface of Al 2 O 3 . The decomposition of Mg(HCO 2 ) 2 on SiO 2 in hydrogen yields two peaks of CO and only one appears after modified by phosphorus. When Mg(HCO 2 ) 2 decomposes on MgO, the first peak of CO 2 arises from the reaction of surface Mg 2+ with HCO 2 − from dissociated Mg(HCO 2 ) 2 .