Setiap tahunnya penggunaan plastik yang semakin meningkat mengakibatkan jumlah sampah sulit terurai tinggi. Upaya mengelola melalui penimbunan dan pembakaran dinilai kurang tepat berdampak buruk bagi lingkungan. Proses Catalytic Thermal Cracking (CTC) merupakan metode menguntungkan untuk mengolah limbah menjadi bahan bakar cair. Pada penelitian ini, pengolahan jenis Polypropylene Low Density Po...

This paper presents a modified multi model predictive control algorithm for the control of riser outlet temperature and regenerator temperature for the fluid catalytic cracking unit (FCCU). The models of the fluid catalytic cracking unit are estimated using subspace identification (N4SID) algorithm. The PRBS signal is applied as an input signal to estimate the FCCU models. Since the estimated m...

Risers are considered vital parts on fluidized catalytic cracking (FCC) conversion units. It is inside the riser that the heavy hydrocarbon molecules are cracked into petroleum fractions such as gasoline and liquefied petroleum gas (LPG). A simplified kinetic flow model in combination with the Tank-In-Series model was used to predict the conversion response of an FCC riser to changes in feed te...

The [email protected] composites were deliberately synthesized with different loading amounts of silver nano-particles in CPO-27-Ni which features unsaturated metal sites and cylindrical one-dimensional channels having a diameter ca. 11 Å constructed by 2,5-dihydroxybenzene-1,4-dicarboxylate Ni2+ simple one-pot solvothermal method. well-characterized used as adsorbents to eliminate the aromatic...

three high-silica mordenite zeolites differing in sio440, ratio were prepared by direct synthesis without using any template. the products si02/a120, ratio is influenced by the starting gel composition. this ratio is increased upon ion-exchange with nh,cl and subsequent calcination to prepare protonic mordenite. the protonic mordenites with si02/a1203ra tios of 14.6,29.2 and 34.6 were character...