Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : World Chemical Engineering Journal

Rice Husk Extract and Damar Resin as Corrosion Preventing Bio Coating Materials for Mild Steel in Demineralized Water Hidayatullah, Andra; Irawan, Anton; Pramudita, Marta
World Chemical Engineering Journal VOLUME 7 NO. 2 DECEMBER 2023
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/wcej.v7i2.22832

Abstract

Corrosion is one of the main problems in industry, especially in cooling systems, refinery units, pipelines, chemicals, oil and gas production units, boilers and water processing, paints, pigments, lubricants, and others. The research focused on testing the ability of bio-coating materials of rice husk extract and resin gum using the weight loss method. In contrast, the corrosive medium used was demineralized water. The variations used were soaking time (1, 2 and 3 hours), silica concentration in bio-coating (0, 500, 1000 and 1500 ppm) and temperature (40, 60 and 80oC). From the results of this study, the highest efficiency was 87.39% at a soaking time of 1 hour and a concentration of 1500 ppm. The higher the temperature, the inhibition efficiency decreases; this shows the adsorption mechanism is physisorption.
Performance Test of Biomass Cookstove with Torrefied Rice Husk as Fuel Using Water Boiling Test Method Alwan, Hafid; Irawan, Anton; Santika, Santika; Nurindah, Erlin
World Chemical Engineering Journal VOLUME 4 NO. 1 JUNE 2020
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v4i1.10585

Abstract

One of the way to increase effectiveness and efficiency of using biomass as fuel is through gasification cookstove technology. Gasification cookstoves is tools used to convert biomass into combustible gases via thermochemical pathline. Rice husk is a type of biomass that has a low heating value of 14 MJ/Kg. Therefore, it is necessary to pre-treat it through torefaction to increase the calorific value of the fuel so that it can increase the thermal efficiency of the gasification cookstove. This research was conducted to obtain the optimum conditions for air flow rate, height of the bed, and fuel type of rice husk torrefied. This research was conducted by inserting rice husk torrefied as fuel with a variation of height of the bed 42.6 cm; 31.5 cm; and 21.3 cm, the secondary air flow rate openings (full open; partial open; close), and type of fuel used is the rice husk torrefied at temperature 250 oC for 60 minutes (fuel A), and temperature 300 °C for 30 minutes (fuel B). The optimum operating conditions were found at 21.3 cm of bed height, full close secondary air opening, with type A fuel. While the highest efficiency value of 18.75% was found in type A fuel, with bed height 31.5 cm, and secondary air opening is full close.
Potential and Opportunity of Co-Firing Power Plant in Indonesia Through Torrefaction of Empty Fruit Bunch (EFB) - A Review Irawan, Anton
World Chemical Engineering Journal VOLUME 5 NO. 1 JUNE 2021
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v5i1.12139

Abstract

Electricity was an important requirement for various activities. Currently, the level of electricity consumption in Indonesia was around 1000 kWh/capita/year and is expected to continue to increase towards developed countries with a minimum electricity consumption level of 3000 kWh/capita/year.  Along with the increasing demand for electricity, many new power plants were being built in Indonesia using coal as fuel. Coal was a non-renewable fuel so the CO2 gas produced has an impact on global warming. Co-Firing was a technology for combining fuel of biomass and coal in order to reduce the use of coal. The difference in the quality of biomass and coal was an obstacle to getting a stable combustion performance so it is necessary to improve the quality of biomass. The torrefaction technology can be implemented to improve the quality of biomass in Indonesia so it can be used as fuel for a co-firing power plant. One of the most potential biomass was empty fruit bunch (EFB) from palm oil processing with a potential of around 48 million tons per year or equivalent to 30 GW.  Every Oil palm mills plant that process 25 ton/hour of fresh oil palm fruit bunches can produce EFB around  5.25 ton/hour. With so many palm oil plants, torrefaction technology can be used to store EFB torrefied which can change the properties of biomass from hydrophilic to hydrophobic. The government's role to support the use of biomass, including EFB, is very much needed in increasing cooperation between palm oil mills and power plants.