Application of carbonized ion exchange resin beads as catalyst support for gas phase hydrogenation processes

Abstract

Carbonized ion exchange resin beads were prepared as catalyst for gas phase hydrogenation processes. Amberlite IR 120 polystyrene based sulfonated ion exchange beads were carbonized at 900 °C. The process of carbonization was monitored by FTIR combined thermogravimetric analysis. During the carbonization formed sulfur dioxide, carbon dioxide and organic compounds. The carbon pearls were used as catalyst support for Pd nanoparticles. The catalyst was characterized by scanning electron microscopy and X-ray diffractometry. The diameters of the palladium nanoparticles on the catalyst surface were between 15 and 50 nm, but bigger aggregates were also detected. The catalyst was tested during the gas phased heterogeneous catalytic hydrogenation of 1-butene. The hydrogenation process was followed by FTIR measurements, 93% conversion was reached after 10 min.

Vanadium(V) Removal from Aqueous Solutions and Real Wastewaters onto Anion Exchangers and Lewatit AF5

“…The sorbents selected for vanadium removal are macroporous or microporous, including polystyrene, polyacrylic matrices with different functional groups (FG) or a carbonaceous matrix without FG. The physicochemical properties were presented based on the producer data sheets of SR7, A400TL, PSR2, PSR3, A830, S984, and AF5 sorbents as well as from our previous studies [ 15 , 16 ], and they are collected in Table 1 .…”

“…In the ATR-FTIR spectra of ion exchangers before the vanadium(V) sorption process ( Figure 4 a–c), broad bands of large intensity corresponding to the stretching vibrations of the –OH and =N–H groups were observed at about 3100–3700 cm −1 [ 16 ]. For all anion exchange resins, this peak is observed but the minimum of peak is at wavenumbers 3361 cm −1 for A400TL, 3351 cm −1 for SR7, 3352 cm −1 for PSR2, 3344 cm −1 for PSR3, 3264 cm −1 for A830, and 3260 cm −1 for S984.…”

Nonedible Thevetia peruviana Oil for the Synthesis of Biobased Thermosets and Vitrimers with Tunable Mechanical Properties

“…50 The loss of sulfonic functionality of the catalyst was further verified using FTIR analysis. The peaks corresponding to −OH (3000−3700 cm −1 ) and −SO 3 (1129 and 1411 cm −1 ) 51 exhibited a significant decrease with the progression of catalyst usage, as depicted in Figure S10.…”

Catalytic hydrogenation of n-butene with nanosized Pt/NBCNT hybrid membranes reinforced with bacterial cellulose

“…To determine the catalytic activity of the BC-NBCNT/Pt hybrid membranes, 1-butene hydrogenation was tested in a continuous flow system (Fig. 1), which is coupled to the gas cell of the FTIR equipment [13].…”

“…In our previous works, precious metal contained catalysts in different forms was tested. NBCNT supported Pt catalysts and Pt contained NBCNT coated zeolite beads was examined in the hydrogenation of 1-butene [12] and Pd contained carbonized ion exchange resin beads were also tested [13]. It was proven that they are efficient, but higher amount of catalysts is required to reach high catalytic efficiency.…”