Acta Chemica Malaysia

Journal: Acta Chemica Malaysia (ACMY)
Author: Ige, Ayodeji Rapheal, Elinge, Cosmos Moki, Aliyu, Muhammad, Gwani Mohammed, Ambursa Murtala M
ISSN: 2576-6732
e-ISSN: 2576-6724

This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.02.2022.69.74

The exploit of biomass for bio-fuel production is becoming trendy as a waste management option. This study is aimed to investigate the physico-chemical and combustion properties of briquettes obtained from pyrolyzed biochar of rice husk. The rice husk biochar briquette bonded with cassava starch as binder were molded and analyzed. Proximate analysis, ultimate analyses, Scanning Electron Microscopy (SEM), FT-IR, calorific values, density and compressive strength, among other properties, were determined for the fabricated briquettes. A high heating value of 39.72 MJ/Kg was recorded for rice husk biochar briquette and 28.45 MJ/Kg of raw rice husk briquette respectively. The ash contents of 3.89 % and 4.52 % were recorded for raw rice husk briquette and rice husk biochar briquette respectively. It took rice husk biochar briquette approximately 13 minutes to boil 1000 cm3 of water, while raw rice husk briquette boiled same quantity of water in 17 minutes. The finding of this study shows that the biochars obtained from the pyrolysis of rice husk are more suitable for fuel briquette production than the raw rice husk.

Journal: Acta Chemica Malaysia (ACMY)
Author: Peter CC, Nworu, JS, Chime, EC, Morka, WE, Onunkwo I
ISSN: 2576-6732
e-ISSN: 2576-6724

This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.02.2022.62.68

The corrosion inhibition characteristics of mild steel in 2 M H2SO4 using 4, 4′-(1,2-ethanediyldinitrilo)-bis-(2-pentanone) Schiff base was studied by weight loss method. It was studied in the absence and presence of different concentration of Schiff base at different temperatures (303 – 353 K) and time intervals (2 – 24 h). The result obtained was used to calculate the surface coverage, corrosion rate and the inhibition efficiency of Schiff base. The inhibitor at high concentration (0.0893 M) showed high inhibition efficiency and low corrosion rate at room temperature (303 K) but at high temperature (333 K – 353 K) there was reduction in inhibition efficiency and an increase in corrosion rate. The zero order was best used to explain the kinetics and the adsorption of Schiff base molecules onto the mild steel followed the Langmuir isotherm model.

Journal: Acta Chemica Malaysia (ACMY)
Author: Ameen Abdelrahman, Asmaa S. Hamouda, A.H. Zaki
ISSN: 2576-6732
e-ISSN: 2576-6724

This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.02.2022.56.61

Today, the world is suffering from serious problems like, climate change, green gases, and increasing temperature degrees on earth which is strongly connected with the plastic waste problem. in that work, we reached out to fabricate heterogeneous catalyst (mainly green materials synthesis) composed of a bunch of ceramic composites (vanadium oxide, and Sliver NPS) assembled on a thin layer of zeolite. Various characterization had been carried out on fabricated composite like surface morphology TEM, XRD, and Uv to evaluate prepared catalyst. Then novel composite catalyst has been applied it be applied to the degradation process of High-density polyethylene (HDPE) throughout the Gasification process in the fixed bad reactor. In order to apply to the catalyst, it has to build an optimization gasification system (Temperature, heating rate, reaction time, and catalyst loading ratio). Regarding results of final products (gas yield ratio, and solid char), the best-optimized parameters with highly efficient catalytic are used thermos cracking of PEHD is % 0.2 wt at temperature 650 OC for 1 hour. We observed Composite has a great effect on gases yields products, and solid waste char. For instance, in the existence of composite catalyst, the gases ratio methane, and Hydrogen is more than in absence of a catalyst. Another characterization had been performed on composites and final products such as SEM, GC, and EDX.