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World Chemical Engineering Journal
Published by Universitas Sultan Ageng Tirtayasa
ISSN : -     EISSN : 24432261     DOI : https://dx.doi.org/10.62870/wcej.v8i1.26617
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering
WCEJ publishes original papers and reviewed papers on the fundamental, theoretical as well as applications of Chemical Engineering. WCEJ is published two times a year. This journal covering some aspects of chemical engineering, which are environmental chemical engineering, chemical reaction engineering, bioprocess-chemical engineering, materials synthesis and processing.
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 4 Documents
 1 
Search results for , issue "VOLUME 3 NO. 1 JUNE 2019" : 4 Documents clear
CATHODIC PROTECTION IN ONSHORE PIPE NETWORKS GAS PAGARDEWA RECEIVING STATION Arwati, I Gusti Ayu; N, Euis; Sirait, Dedi
World Chemical Engineering Journal VOLUME 3 NO. 1 JUNE 2019
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v3i1.5613

Abstract

The use of pipelines is one element that plays an important role as a production chain The pipeline network is used as the main component to distribute gas from the producer to the shipper and then distributed to industrial and household customers. In accordance with the regulations of the Ministry of Mines and Energy No. 300. K / 38 / M.PE / 1997 concerning the Occupational Safety of Petroleum and Gas Pipeline Pipes that the gas and main pipe transmission pipes held on land must be planted with a depth of at least 1 (one) meter above ground level.  However, the placement of steel pipes in the ground can cause pipe material to be threatened by corrosion due to interaction with the environment. This happens in the Pipeline Line of the Gas Pagardewa receiving station. To prevent corrosion from continuing on the pipeline, a precautionary step is needed where one of them is by applying the cathodic protection method. At Pagardewa Gas Receiver Station, which has the role of distributing gas to PLN's power plan in South Sumatra by using a 4875 m pipeline that is embedded in the ground so it needs to be designed for a cathodic protection system to be corrosion resistant. The purpose of this study is to design a cathodic protection system that uses sacrificial anodes so that the analysis can be obtained to be applied in the field.
EFFECT OF FECL3 AND AL2O3 ADDITION TOWARD LIGNIN CONTENT ON CORN COB DELIGNIFICATION WITH NAOH AS THE SOLVENT BY USING ULTRA SONIC ASSISTED Kanani, Nufus; Rusdi, Rusdi
World Chemical Engineering Journal VOLUME 3 NO. 1 JUNE 2019
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v3i1.4612

Abstract

Corn cobs are one of the many lignocellulosic wastes highly available all over Indonesia, one of them is in Banten. Lignocellulosic waste is agricultural waste containing cellulose, hemicellulose, and lignin. Corn cobs contain cellulose (40-60%), hemicellulose (20-30%) and lignin (15-30%). To be able to utilize the cellulose content contained in corn cobs optimally, it is necessary to separate the lignin content in corn cobs. This study aims to examine the effect of the addition of FeCl3 and AL2O3 on the delignification process of corn cob with NaOH solvent using ultrasonic waves. In the previous study, 40% lignin in cellulose was obtained by using NaOH solvents with the help of ultrasonic waves at a temperature of 60 0C and an ultrasonic frequency of 40 KHz. Therefore, in this study a delignification process was carried out at a temperature of 60 0C with an ultrasonic frequency of 40 kHz with the addition of FeCl3: NaOH, AL2O3: NaOH, AL2O3: FeCl3 and FeCl3: AL2O3 0: 1; 1: 1 and 2: 1 respectively. The test results using the Chesson method showed that the lowest lignin content in cellulose was 12% at the ratio of NaOH: AL2O3 as1: 2.
THE UPPERMOST CORROSIVE COMPOSITES IN PETROLEUM OILS AND METALLIC CORROSION Aluvihara, Suresh; Premachandra, Jagath K.
World Chemical Engineering Journal VOLUME 3 NO. 1 JUNE 2019
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v3i1.5126

Abstract

Petroleum oils are the essential compounds in the purposes of industrial mechanisms and a few of other applications since obtaining some adverse impacts from such crude oils on the commonly applicable materials because of the corrosive composites of such crude oils. The investigations of the corrosion rates of seven different types of ferrous metal that applicable in the industry of crude oils refining due to the effects of salts, organic acids, elemental sulfur and Mercaptans of two different types of crude oils were the objectives of the existing research. The chemical compositions of selected ferrous metals, elemental sulfur contents, salt contents, Mercaptans contents and organic acid contents of two different types of crude oils were tested by in order of XRF detector, XRF analyzer, salt analyzer and titration methods. A bath of prepared seven different types of metal coupons was dipped in both crude oils samples separately and homogeneously. In order of after 15, 30 and 45 days from the immersion the corrosion rates of such metal coupons were determined by the weight loss method with the aid of the qualitative microscopic analysis of the corrosion. According to the results that there were obtained the lower corrosion rates from stainless steels especially with the chemical composition at least 12% of chromium with sufficient amount of nickel because of the self corrosion protection film of such metals, relatively higher impact from salts on the metallic corrosion, formations of FeS, Fe2O3, corrosion cracks and irregular pitting on the metal surfaces. 
ZEOLITE FOR AGRICULTURE INTENSIFICATION AND CATALYST IN AGROINDUSTRY Kurniawan, Teguh; Nuryoto, Nuryoto; Firdaus, Mochamad Adha
World Chemical Engineering Journal VOLUME 3 NO. 1 JUNE 2019
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v3i1.5507

Abstract

The role of renewable products is becoming important because the fossil resources in which most of our chemicals derived is vanishing. Agriculture as the renewable sources is needed to increase the production which is not only required to meet the food demands but also to replace chemicals that derived from fossil sources. Zeolite has a huge potential for agriculture intensification and conversion of agriculture products and by-products into chemicals. Indonesia has two kind deposit of natural zeolites, which are clinoptilolite and mordenite lies aligned volcanic mountain across Sumatra, Java, Nusa Tenggara and Sulawesi Islands. Zeolite has large surface area consisted of microporous and mesoporous structures. It could be utilized as an ion exchange agent, adsorbent and catalyst for applications in agriculture and agroindustry. Sustainable development of agricultural products could be also assisted by zeolite as slow-release fertilizer and controlling pests. Moreover, this review discusses about the integration of natural zeolite with chemical based wastes from livestock with nitrogen demand for cultivation is explained as a part of the idea of one-system-integrated farm and livestock. Storage and processing of agricultural products could be more efficient with the utilization of zeolite in drying, storage, processing and product preservation unit operations. Sucrose crystallization, catalytic reaction inulin to fructose, pinene isomerization and glycerol biodiesel by-product conversion is discussed in this review. As in general, zeolite porosity, topology, silicon to aluminium ratio, and acidity properties become an important factor on catalytic reactions to convert agricultural products into beneficial chemical substances

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