Selective hydrogenation of acetic acid to ethanol on Cu-In …
网页2019年5月5日 — Considering the theoretical and economic feasibility, the acetic acid could be selectively hydrogenated to ethanol in the presence of metal catalyst, and at the same time, as an alternative technology to fermentation to meet the increasingly demand of …
Acetic acid - Wikipedia
网页Acetic acid / ə ˈ s iː t ɪ k /, systematically named ethanoic acid / ˌ ɛ θ ə ˈ n oʊ ɪ k /, is an acidic, colourless liquid and organic compound with the chemical formula CH 3 COOH (also written as CH 3 CO 2 H, C 2 H 4 O 2, or HC 2 H 3 O 2). Vinegar is at least 4% acetic acid by volume, making acetic acid the main component of vinegar ...
Aqueous phase conversion of CO2 into acetic acid over thermally ...
网页2023年5月17日 — Gas phase CO 2 hydrogenation to AA, PA (propionic acid), and negligible amounts of C +4 acids (butyric acid and valeric acid), and other hydrocarbons (CH 4 and C 2 −C 4) has been...
Kinetics of Hydrogenation of Acetic Acid over Supported Platinum ...
网页2019年5月22日 — In this study, the HDO of acetic acid is presented, being a typical model compound found in bio-oil. Kinetic data were obtained over the range of temperature (175–210 °C), hydrogen pressure (20–50 bar), initial acetic acid concentration (0.16–0.521 M), and catalyst loading (0.2–0.5 g), in a 100 mL batch reactor using 4% Pt/TiO 2.
The cooperation effect of Ni and Pt in the hydrogenation of acetic acid
网页2021年8月31日 — The cooperation of Pt and Ni significantly promotes the catalytic activity of the hydrogenation of acetic acid to ethanol. As a result, the catalyst with 0.1% Ni exhibits the best reaction activity, and its space time yield is twice as that of the PtSn/SiO 2 catalyst.
Synthesis of acetic acid via methanol hydrocarboxylation with CO
网页2016年5月11日 — Acetic acid is an important bulk chemical that is currently produced via methanol carbonylation using fossil based CO. Synthesis of acetic acid from the renewable and cheap CO 2 is of great...
Aqueous‐Phase Hydrogenation of Acetic Acid over Transition Metal ...
网页2010年11月9日 — Vision in scission: Catalytic hydrogenation of acetic acid to ethanol has been carried out in aqueous phase on several metals, with ruthenium being the most active and selective. DFT calculations suggest that the initial C O bond scission yielding acetyl is the key step and that the intrinsic reactivity of the metals accounts for the observed ...
Aqueous Phase Hydrogenation of Acetic Acid and Its …
网页At low temperatures (∼150 °C), acetic acid hydrogenation is favored with higher selectivity to ethanol, while at high temperatures (∼300 °C), acetic acid decomposition and ethanol reforming/hydrogenolysis dominate with CO 2 and CH 4 as the major products.
Acetic acid hydrogenation over supported platinum catalysts
网页2000年6月10日 — Acetic acid was chosen to probe the kinetic behavior of carboxylic acid hydrogenation over platinum supported on TiO 2, SiO 2, η-Al 2 O 3, and Fe 2 O 3. The reaction was studied in the vapor phase underconditions of 423–573 K, 100–700 Torr hydrogen, and 7–50 Torr acetic acid in a differential, fixed-bed reactor.
Catalytic Hydrogenation of Acetic Acid to Acetaldehyde: …
网页2019年5月8日 — The large-scale industrial production of acetic acid (HAc) from carbonylation of methanol has enabled intense research interest from direct hydrogenation of HAc to acetaldehyde (AA). Herein, a series of cerium-iron oxide solid solution supported metallic cobalt catalysts were prepared by modified sol …