Biodiesel Production on Monometallic Pt, Pd, Ru, and Ag Catalysts Supported on Natural Zeolite

Abstract

Biodiesel production from rapeseed oil and methanol via transesterification reaction facilitated by various monometallic catalyst supported on natural zeolite (NZ) was investigated. The physicochemical characteristics of the synthesized catalysts were studied by X-ray diffraction (XRD), Brunauer–Emmett–Teller method (BET), temperature-programmed-reduction in hydrogen (H2-TPR), temperature-programmed-desorption of ammonia (NH3-TPD), Scanning Electron Microscope equipped with EDX detector (SEM-EDS), and X-ray photoelectron spectroscopy (XPS) methods. The highest activity and methyl ester yields were obtained for the Pt/NZ catalyst. This catalyst showed the highest triglycerides conversion of 98.9% and fatty acids methyl esters yields of 94.6%. The activity results also confirmed the high activity of the carrier material (NZ) itself in the investigated reaction. Support material exhibited 90.5% of TG conversion and the Fatty Acid Methyl Esters yield (FAME) of 67.2%. Introduction of noble metals improves the TG conversion and FAME yield values. Increasing of the metal loading from 0.5 to 2 wt.% improves the reactivity properties of the investigated catalysts.

SrO‐MnO/Ceramic: A Novel Bifunctional Catalyst for Biodiesel production via Simultaneous Transesterification‐Esterification of Waste Frying Oil

“…The catalytic characteristics of heterogeneous catalysts are inextricably linked to the number as well as intensity of energetic centers present over the surface [47] . The quantity of metallic salts loaded has a massive influence on the density of approachable energetic centers on surface of solid catalyst, and consequently on the performance of catalyst.…”

The Effect of the Activation Process and Metal Oxide Addition (CaO, MgO, SrO) on the Catalytic and Physicochemical Properties of Natural Zeolite in Transesterification Reaction

“…Figure 1 presents the influence of the carrier material treatment on the phase composition. As we can easily see from the diffraction curves recorded for the investigated materials, the natural zeolite structure contains calcite, mordenite, clinoptilolite (zeolite) and quartz [ 9 ]. The obtained diffraction curve for NZ with the identified crystal structures is presented in Figure 1 .…”

“…In addition, the increase in greenhouse gas emissions caused by fossil fuel combustion causes significant environmental pollution [4]. All of this demonstrates the urgent need to search for new, sustainable and environmentally friendly alternatives to fossil fuels [3,[5][6][7][8][9][10]. One of the main alternative fuels is biodiesel.…”

Biodiesel Production via Transesterification Reaction over Mono- and Bimetallic Copper-Noble Metal (Pt, Ru) Catalysts Supported on BEA Zeolite

“…Furthermore, biodiesel can be blended in any proportion with conventional petroleum-based diesel [7]. Biodiesel is considered an environmentally friendly, clean, renewable and sustainable fuel [8][9][10][11][12][13][14]. The combustion of biodiesel produces lower emissions of gaseous pollutants (i.e., SOx, NOx, CO and HC) as well as particulate matter or soot compared to conventional diesel fuel [15].…”