ABSTRACT Linear Alkylbenzene (LAB) is an organic chemical compound (C18H30) in the form of a clear liquid used as a raw material for the manufacture of detergents, household cleaning products, agricultural herbicides, ink solvents, and the paint industry. LAB has replaced Alkylbenzene Sulfonate (ABS) as a detergent raw material due to its faster degradation rate, making it more environmentally…
ABSTRACT Global demand for cyclohexanol continues to rise, driven by growth in the textile, plastic, coating, and automotive industries. Despite this demand, Indonesia currently possesses no domestic cyclohexanol production capability and remains reliant on imports to fulfill its needs. This presents a significant opportunity for the establishment of a local manufacturing facility to reduce im…
ABSTRACT Formic acid (HCOOH) is one of the simplest carboxylic acids and is widely used in various industries such as textile, leather, livestock, and chemical industries as an intermediate compound. The formic acid market in Indonesia is projected to experience significant growth from 2023 to 2029, driven by rising demand from the chemical, pharmaceutical, textile (IKFT), and latex industries…
ABSTRACT Ethylene and acetic acid are among the most important petrochemical compounds in the chemical industry, serving as the primary raw materials in the manufacture of polyethylene, ethylene glycol, styrene, and various other derivative products. Meanwhile, acetic acid is used in the manufacture of adhesives, synthetic fibers (such as acetate), solvents, and as an intermediate in the pharm…
ABSTRACT Polyethylene is classified as a fundamental industrial product in the polymer industry as it has the highest production volume worldwide. LLDPE is a linear polymer with many short branches processed by copolymerization of ethylene with short-chain α-olefins in the form of 1-octene using a Ziegler-Natta catalyst and cyclohexane solvent. The level of plastic production in Indonesia, wh…
ABSTRACT Ethylene is one of the main petrochemical feedstocks with a wide range of industrial applications, including as a raw material for plastics, textiles, polyester fibers, detergents, and various other chemical products. The demand for ethylene in Indonesia continues to increase, while domestic production capacity remains limited at around 900 thousand tons per year. This condition force…
ABSTRACT Acetaldehyde (CH₃CHO) is a highly important intermediate chemical, commonly used as a raw material for producing lactic acid, ethyl acetate, pentaerythritol, n-butanol, and various other chemical derivatives. The demand for acetaldehyde in Indonesia is currently still met through imports. Data from the Central Statistics Agency shows a significant increase in import volume between 20…
ABSTRACT Betaine surfactant, widely used as a co-agent in various chemical products, is primarily applied in the formulation of personal care items, classifying it as a bio-resource. Indonesia’s domestic surfactant production currently stands at 70,000 tons per year, which remains insufficient to meet national demand. Consequently, the country relies on imports, which have increased by 8.15%…
ABSTRACT Linear alkylbenzene (LAB) is an organic compound (C₁₂H₂₆) that is a clear liquid used as a raw material in detergents, household cleaning products, agricultural herbicides, ink solvents, and paints. LAB has replaced alkylbenzene sulfonate (ABS) as a detergent raw material because it degrades faster, making it more environmentally friendly. Additionally, LAB compounds are more …
ABSTRACT Ethylene and acetic acid are among the most important petrochemical compounds in the chemical industry, serving as key raw materials for the production of polyethylene, ethylene glycol, styrene, and various other derivative products. Meanwhile, acetic acid is used in the manufacture of adhesives, synthetic fibers (such as acetate), solvents, and as an intermediate in the pharmaceutica…
Design of a Direct Dimethyl Ether (DME) Plant from Natural Gas with the Main Equipment Design of Dimethyl Ether Reactor (R-102) Nadiyah Nesa Syakdiyah ABSTRACT Dimethyl Ether (DME) is a simple ether compound used as a raw material in industry and as a fuel. DME is a colorless, odorless gas that is soluble in water and oil. It is non-carcinogenic, nonteratogenic, non-mutagenic, and non-to…
Perkembangan Masyarakat Adat Petalangan Di Kecamatan Pangkalan Kuras Kabupaten Peialawan Tahun 1995 -2005. Masyan-.kat Petalangan adalah suku asli Melayu Riau yang berdiam di Kecamatan Pangkalan Kuras Kabupaten Peialawan. Adapun latar belakang pemilihan judul ini yaitu keadaan masyarakat adat Petalangan yang sudah sulit untuk dibedakan dengan masyarakat Jain yang ada di Kecamatan Pangkalan Kura…
This study aims to analyze coastal line changes and land use in the coastal area of Bandar Laksamana District, Bengkalis Regency. The methods used include analysis of Landsat 5 TM images (2004, 2009), Landsat 8 OLI/TIRS images (2014, 2019, 2024), and Sentinel-2A images (2019, 2024), processed using ArcGis 10.4 and validated in the field (ground check). The results show the dynamics of abrasion …
TheAsian redtail catfish (Hemibagrus nemurus) is a native Indonesian fish species. Demand for Asian redtail catfish is also increasing with the increasing demand for Asian redtail catfish. The price of Asian redtail catfish is also included in the expensive freshwater fish group with a price range of IDR 50,000-70,000/kg. This study aims to determine the effect of adding vitamin C and the age o…
Sexual violence is an act of sexual abuse against a person, whether female or male, that is done by force. Sexual violence does not only affect women; men also frequently become victims in a significant and increasing number every year in Indonesia. Sexual violence against men is a public health issue that is often overlooked. This research aims to understand the profile of sexual violence agai…
Soil Transmitted Helminth (STH) are a group of intestinal worms that cause infestations in the body and are transmitted through soil contaminated with infested human feces. The presence of STH in the soil can increase the risk of contamination in vegetables grown in soil. This study aims to determine the incidence of STH and other worm contamination found in fresh vegetables, namely basil, lett…
This studywas conductedfrom November2024 to March 2025in theFish Nutrition Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Riau. The objective of this research was to describe changes in digestive enzyme activity (protease, amylase, and lipase) and intestinal histology of Asian Redtail Catfish (Hemibagrus nemurus) fed diets containing fermented catfish offal flour using EM-4. …
This study aimed to evaluate the effect of adding weaver ant eggs (Oecophylla smaragdina) to commercial feed on the growth and survival of striped catfish (Hemibagrus nemurus) in a recirculating aquaculture system. The experiment was conducted from February to March 2025 at the Aquaculture Technology Laboratory, University of Riau, using a Completely Randomized Design with five treatments and t…
White shrimp (Litopenaeus vannamei) is a one of the leading commodities in the aquaculture sector in Indonesia. In its cultivation practices, there are various challenges, one of which is the suboptimal growth of shrimp due to inappropriate feed management. One approach that is starting to be widely applied to increase feed efficiency is the use of probiotics. This study aimed to evaluate the e…
Thegiant gourami (Osphronemus goramy) is a freshwater fish species of high economic value. however, its growth rate is relatively slow. to accelerate its growth performance requires high-quality feed that incorporates locally ingredients as a protein sources, such as maggot flour. Maggot (Hermetia illucens) meal. Maggot meal contains high crude protein (46.15%) but also has a relatively high cr…