Comparative study of transition metal-doped calcined Malaysian dolomite catalysts for WCO deoxygenation reaction

Recent Advances of Triglyceride Catalytic Pyrolysis via Heterogenous Dolomite Catalyst for Upgrading Biofuel Quality: A Review

“…In recent findings, the attachment of Ni metal on dolomite catalyst surfaces exhibited the highest conversion compared to other metals. Based on research findings by Hafriz et al [ 77 ], the Ni/CMD900 catalyst exhibited the highest conversion (67.0%) and high selectivity (80.2%) compared to the others (Fe, Zn, Cu, Co/CMD900), with a high proportion of saturated linear hydrocarbons corresponding to green diesel. As shown in Figure 7 , Ni/CMD900 depicted the highest composition of biofuel in the produced pyrolysis oil compared to the other transition-metal-activated dolomite catalysts.…”

“…Moreover, the performance of the conversion mainly relied on the uniformity of the catalyst’s parameters [ 81 ]. The presence of high acidity sites resulted in extensive deactivation due to catalyst coking and tar formation [ 77 ].…”

“…As shown in Figure 7 , Ni/CMD900 depicted the highest composition of biofuel in the produced pyrolysis oil compared to the other transition-metal-activated dolomite catalysts. Predominately, the large density of the basic site Ni-promoted catalyst (4.40 × 10 21 atom/g) compared to the other doped metal-activated dolomite catalysts improved catalyst stability in the reaction [ 77 ]. This finding successfully proved the significant role of catalyst surface modifications affecting catalytic behaviors.…”

Selectivity of reaction pathways for green diesel production towards biojet fuel applications

“…The conversion remained within the range of 75-89%. 143,144 Those phenomena commenced the idea of Ni application alongside with Fe as bimetallic catalyst. The Ni-Fe/ZrO 2 catalyst elevated the conversion of oleic acid up to 98.7% over the following reaction conditions: 240 °C, 2 MPa and 3 hours.…”

Synthesis of mesoporous zeolite Y using Sapindus rarak extract as natural organic surfactant for deoxygenation of Reutealis trisperma oil to biofuel

“… 7 Ni exhibited a higher catalytic deoxygenation activity than Zn, Cu, Co and Fe. 8 Ni 20 La 20 /AC catalyst was efficient for the deCOx reaction to produce n -(C 15 + C 17 ) hydrocarbon fractions due to the moderate density of strong acid and the low density of strong base sites. 9 The binary Ni oxide and CaO created acid–base catalysts that synergically catalysed triolein deoxygenation into diesel hydrocarbons.…”