The effects of supported Pd, Pt, Re, Rh, Ru, Ir, Au, and Ni catalysts on renewable hydrocarbon production from alternative feedstock

Māliņš, Kristaps; Māliņa, Ilze

doi:10.1016/j.biombioe.2023.106732

Cited by 4 publications

(8 citation statements)

References 24 publications

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“…The C–C bond cleavage activity of supported Ru and Rh catalysts has been demonstrated in the hydrotreatment of vegetable oils, fatty acids and alcohols, ,, but to our knowledge, the selective C–C bond cleavage of fatty amides has not been reported before. Furthermore, with most amine hydrotreatment studies focusing on methylamine, information on the preference between C–C and C–N bond cleavage routes on reduced metal catalysts is limited.…”

Section: Resultsmentioning

confidence: 87%

“…For example, the formation of trihexadecylamine (C48 amine) may have occurred. − The low activity of the Ni catalyst may have been related to the relatively low number of surface Ni sites (Table ). Considering the low price of Ni compared to noble metals, it could be viable to increase the Ni loading in order to increase the reaction rate. ,, …”

Section: Resultsmentioning

confidence: 99%

“…Considering the low price of Ni compared to noble metals, it could be viable to increase the Ni loading in order to increase the reaction rate. 23,77,78 The activity of Pt/ZrO 2 markedly exceeded the activity of Ni/ZrO 2 and Pd/ZrO 2 , but the product distribution shared some similarities (see Figure S7 in the Supporting Information for the product distribution at similar conversion levels). Pt/ ZrO 2 provided the highest conversion (87%) out of the studied catalysts in the hydrotreatment of the C16 amide (Figure 4).…”

Section: Catalytic Hydrotreatment Of N-hexadecanamidementioning

confidence: 99%

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Zirconia-Supported Pt, Pd, Rh, Ru, and Ni Catalysts in the Hydrotreatment of Fatty Amides and Amines

Verkama,

Albersberger,

Meinander

et al. 2024

Energy Fuels

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Active catalysts for simultaneous hydrodeoxygenation (HDO) and hydrodenitrogenation (HDN) enable the production of fuels from renewable feedstocks. In this work, zirconia-supported nickel, ruthenium, rhodium, palladium, and platinum catalysts were evaluated in the HDO and HDN of n-hexadecanamide (C16 amide). The HDN of 1-hexadecylamine (C16 amine) was studied separately to assess the HDN activity and the preference between C−C and C−N bond cleavage routes without the interference of HDO. The differences in the catalytic activity were mainly attributed to the metal identity. Pt/ZrO 2 and Ru/ZrO 2 exhibited the highest activity toward the conversion of both model compounds. The C16 amide was converted more efficiently than the C16 amine over the studied catalysts, and a high HDO activity did not translate to a high activity in HDN, which was particularly evident in the case of Rh/ZrO 2 . The active metal strongly influenced the preferred reaction routes, as observed from differences in the yields of C15 and C16 n-paraffins and C32 condensation products. Ni/ZrO 2 and Pd/ZrO 2 exhibited the lowest activity and paraffin selectivity in the hydrotreatment of both model compounds. Ru/ZrO 2 and Rh/ZrO 2 favored the formation of n-pentadecane from both the C16 amine and C16 amide, whereas Pt/ZrO 2 produced n-hexadecane and high intermediate yields of the C32 condensation products.

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Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: Catalytic Hydrotreatment Of N-hexadecanamidementioning

confidence: 99%

See 1 more Smart Citation

Zirconia-Supported Pt, Pd, Rh, Ru, and Ni Catalysts in the Hydrotreatment of Fatty Amides and Amines

Verkama,

Albersberger,

Meinander

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…The C-C bond cleavage activity of supported Ru and Rh catalysts has been demonstrated in the hydrotreatment of vegetable oils, fatty acids and alcohols, 23,78,79 but to our knowledge, the selective C-C bond cleavage of fatty amides has not been reported before. Furthermore, with most amine hydrotreatment studies focusing on methylamine, information on the preference between C-C and C-N bond cleavage routes on reduced metal catalysts is limited.…”

Section: Catalyticmentioning

confidence: 88%

“…Considering the low price of Ni compared to noble metals, it could be viable to increase the Ni loading in order to improve the catalytic activity. 23,77,78 The activity of Pt/ZrO2 markedly exceeded the activity of Ni/ZrO2 and Pd/ZrO2, but the product distribution shared some similarities. Pt/ZrO2 provided the highest conversion (87%) out of the studied catalysts in the hydrotreatment of the C16 amide (Figure 4).…”

Section: Catalyticmentioning

confidence: 99%

Zirconia-supported Pt, Pd, Rh, Ru and Ni catalysts in the hydrotreatment of fatty amides and amines

Verkama,

Albersberger,

Meinander

et al. 2023

Preprint

View full text Add to dashboard Cite

Active catalysts for simultaneous hydrodeoxygenation (HDO) and hydrodenitrogenation (HDN) enable the production of fuels from renewable feedstocks. In this work, zirconia-supported nickel, ruthenium, rhodium, palladium and platinum catalysts were evaluated in the HDO and HDN of n-hexadecanamide (C16 amide). The HDN of 1-hexadecylamine (C16 amine) was studied separately to assess the HDN activity and preference between C–C and C–N bond cleavage routes without the interference of HDO. The differences in the catalytic activity were mainly attributed to the metal identity. Pt/ZrO2 and Ru/ZrO2 exhibited the highest activity towards the conversion of both model compounds. The C16 amide was converted more efficiently than the C16 amine over the studied catalysts, and a high HDO activity did not translate to a high activity in HDN, which was particularly evident in the case of Rh/ZrO2. The active metal strongly influenced the preferred reaction routes, as observed from differences in the yields of C15 and C16 n-paraffins and C32 condensation products. Ni/ZrO2 and Pd/ZrO2 exhibited the lowest activity and paraffin selectivity in the hydrotreatment of both model compounds. Ru/ZrO2 and Rh/ZrO2 favored the formation of n-pentadecane from both the C16 amine and C16 amide, whereas Pt/ZrO2 produced n-hexadecane and high intermediate yields of the C32 condensation products.

show abstract

Zirconia-supported Pt, Pd, Rh, Ru and Ni catalysts in the hydrotreatment of fatty amides and amines

Verkama,

Albersberger,

Meinander

et al. 2024

Preprint

View full text Add to dashboard Cite

Active catalysts for simultaneous hydrodeoxygenation (HDO) and hydrodenitrogenation (HDN) enable the production of fuels from renewable feedstocks. In this work, zirconia-supported nickel, ruthenium, rhodium, palladium and platinum catalysts were evaluated in the HDO and HDN of n-hexadecanamide (C16 amide). The HDN of 1-hexadecylamine (C16 amine) was studied separately to assess the HDN activity and preference between C–C and C–N bond cleavage routes without the interference of HDO. The differences in the catalytic activity were mainly attributed to the metal identity. Pt/ZrO2 and Ru/ZrO2 exhibited the highest activity towards the conversion of both model compounds. The C16 amide was converted more efficiently than the C16 amine over the studied catalysts, and a high HDO activity did not translate to a high activity in HDN, which was particularly evident in the case of Rh/ZrO2. The active metal strongly influenced the preferred reaction routes, as observed from differences in the yields of C15 and C16 n-paraffins and C32 condensation products. Ni/ZrO2 and Pd/ZrO2 exhibited the lowest activity and paraffin selectivity in the hydrotreatment of both model compounds. Ru/ZrO2 and Rh/ZrO2 favored the formation of n-pentadecane from both the C16 amine and C16 amide, whereas Pt/ZrO2 produced n-hexadecane and high intermediate yields of the C32 condensation products.

show abstract

The effects of supported Pd, Pt, Re, Rh, Ru, Ir, Au, and Ni catalysts on renewable hydrocarbon production from alternative feedstock

Cited by 4 publications

References 24 publications

Zirconia-Supported Pt, Pd, Rh, Ru, and Ni Catalysts in the Hydrotreatment of Fatty Amides and Amines

Zirconia-Supported Pt, Pd, Rh, Ru, and Ni Catalysts in the Hydrotreatment of Fatty Amides and Amines

Zirconia-supported Pt, Pd, Rh, Ru and Ni catalysts in the hydrotreatment of fatty amides and amines

Zirconia-supported Pt, Pd, Rh, Ru and Ni catalysts in the hydrotreatment of fatty amides and amines

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