Carbon-supported palladium-ruthenium catalyst for hydropurification of terephthalic acid

The ruthenium-incorporated catalyst, (0.3% Pd–0.2% Ru)/CCM (carbon carbonaceous composite material) catalyst, has been studied as a candidate to replace an existing 0.5% Pd/C catalyst for hydropurification of crude terephthalic acid; it gives an excellent performance and is a promising catalyst. It...

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Bibliographic Details
Published in:Applied catalysis. A, General General, 2002-02, Vol.225 (1), p.131-139
Main Authors: Jhung, Sung Hwa, Romanenko, Anatoly V., Lee, Ki Hwa, Park, Youn-Seok, Moroz, Ella M., Likholobov, Vladmir A.
Format: Article
Language:English
Subjects:
Carbon
Carbon composite
Hydropurification
Palladium
Ruthenium
Terephthalic acid
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Summary:The ruthenium-incorporated catalyst, (0.3% Pd–0.2% Ru)/CCM (carbon carbonaceous composite material) catalyst, has been studied as a candidate to replace an existing 0.5% Pd/C catalyst for hydropurification of crude terephthalic acid; it gives an excellent performance and is a promising catalyst. It has been confirmed that the (0.3% Pd–0.2% Ru)/CCM catalyst has higher stability in actual commercial condition and aging in lab condition compared with a commercial catalyst. The increased stability may be explained as the effect of ruthenium to prevent the sintering of supported metal particles. The (0.3% Pd–0.2% Ru)/CCM catalyst shows equal or less amount of side reaction of benzene ring hydrogenation. The dust from carbon support can also be decreased from the (0.3% Pd–0.2% Ru)/CCM catalyst due to the increased strength of the CCM. The (0.3% Pd–0.2% Ru)/CCM catalyst may be very competitive to the existing catalyst due to the inexpensive ruthenium and the expected long life of the catalyst.
ISSN:0926-860X
1873-3875
DOI:10.1016/S0926-860X(01)00853-5