Effect of metal type on basic soap pyrolysis produce bio-gasoline

Abstract

The basic metal soap from oleic acid submitted to pyrolysis to produce gasoline-like hydrocarbon fuels (biogasoline). The pyrolysis was carried out in a semi-batch reactor at 450°C and a feeding rate of 5 g/15 min. The influences of various metal (Ca, Mg, Zn) hydroxides, which are used to made basic soap, have been examined. The bio hydrocarbon of basic metal soap was characterized by GC-FID and FT-IR, showing the formation of paraffin, iso-paraffin, olefin, ketone, and aromatics. The liquid fraction derived from the pyrolysis of basic metal soap was dominated by gasoline (C7-C11) fraction hydrocarbon. The maximum yield of light C7-C11 hydrocarbon was 82.3 %-mol fraction of basic Ca soap and the highest yield of biohydrocarbon reached 34.77 wt.% from pyrolysis of basic Mg soap.

The effect of Ca/Mg/Zn mixing ratio on the research octane number of bio-gasoline during basic soap pyrolysis

“…It was supported by previous research that reports on the impact of metal type on basic soap pyrolysis to produce biogasoline. The report explained that basic soap Ca, Mg, Zn-oleate pyrolysis produced bio-hydrocarbon containing iso-paraffinic as a dominant product [ 22 ]. In addition, the five variations of the Ca metal ratio have the same metal composition of Zn, while Zn was a hydrocarbon catalyst.…”

“…The oleic saponification and iodine values were 198.9 and 93.05 mg KOH/100 g samples, respectively. The mixed-hydroxide was obtained via a co-precipitation process of sodium hydroxide solution with high metal chloride base solution [ 22 ]. Calcium nitrate [Ca(NO 3 ) 2 .4H 2 O], magnesium nitrate [Mg(NO 3 ) 2 .6H 2 O], zinc nitrate [Zn(NO 3 ) 2 .4H 2 O] and sodium hydroxide [NaOH] were utilized from Merck with 99 % purity.…”

“…The saponification was carried out in a stirred reactor equipped with a heating jacket and a thermocouple. The procedure was as follows [ 22 ]: the mixed-metal hydroxide 40g and 140g oleic acids were mixed in a saponification reactor. The mixture is heated to 40–45 °C, and added 0.18 ml of formic acid, 98–100%, and 4 ml of water were added.…”

“…In addition, our previous studies have shown that basic soap derived from oleic acids can be converted into renewable fuel. For instance, Ca, Mg, Zn basic soap have successfully converted gasoline-like hydrocarbon fuels (biogasoline) by pyrolysis, respectively [ 22 ].…”

Dinamika dan Karakter Produk Hasil Dekarboksilasi Sabun Hidroksi Pelargonat

“…Hasil penelitian ini menunjukkan bahwa penggunaan hidrotalsit Mg/Al = 5:1 excess 300% dan hidrotalsit Mg/Al = 3:1 excess 300% menghasilkan produk berfasa cair dengan perolehan produk dan titik beku hidrotalsit Mg/Al = 5:1 excess 300% lebih tinggi dibandingkan hidrotalsit Mg/Al = 3:1 excess 300%. Hal ini menunjukkan bahwa jumlah Mg yang lebih banyak menghasilkan perolehan produk yang lebih tinggi dan titik beku yang juga lebih tinggi, hasil ini sejalan dengan penelitian pengaruh jenis logam pada pirolisis sabun menghasilkan biogasoline dimana sabun Mg menghasilkan perolehan produk yang lebih tinggi dibandingkan sabun Ca [8]. Hasil uji jejak keton yang bertujuan untuk melihat apakah terdapat unsur oksigen dalam produk dapat dilihat pada Tabel 2.…”