PT X is an Indonesian oil and gas processing industry. Recognizing the potential harm posed by emissions from natural processing, actively working to control air pollution. One of their initiatives involves construction a Sulfur Recovery Unit (SRU) refinery reduce sulfur emissions, particularly H2S, converting them into liquid products. The SRU effectively processes approximately 73% H2S emitte...

High-throughput microbial electrolysis cells (MECs) were used to perform treatability studies on many different refinery wastewater samples all having appreciably different characteristics, which resulted in large differences in current generation. A de-oiled refinery wastewater sample from one site (DOW1) produced the best results, with 2.1±0.2 A/m(2) (maximum current density), 79% chemical ox...

Nitrogen dioxide NO2 is one of the most dangerous contaminant in air, its toxic gas that cause disturbing respiratory effects, it emitted from industrial sources especially stack power plants and oil refineries. In this study Gaussian equations modelled by Matlab program to state effect pollutant on area around Durra refinery, also evaluate some elements such as wind stability stacks height. Da...

This work addresses the large-scale crude oil scheduling problem of China’s SINOPEC Maoming refinery importing various types of crude oil from two terminals via long-distance pipelines. A hierarchical decomposition approach is employed to construct a two-stage MILP model of the practical refinery operations. In the upper level model, storage and charging tanks are aggregated to determine the in...

This paper discusses the application of control loop performance assessment (Desborough and Harris, 1992) in a refinery setting. In a large process it is not feasible to tailor the parameters of the algorithm to every individual control loop. A procedure is illustrated for selecting default values which make it possible to implement the technology on a refinery-wide scale. For instance, it is s...

This paper presents a novel decomposition strategy for solving large scale refinery scheduling problems. Instead of formulating one huge and unsolvable MILP or MINLP for centralized problem, we propose a general decomposition scheme that generates smaller sub-systems that canbe solved toglobal optimality. The original problem is decomposed at intermediate storage tanks such that inlet and outle...

Browsing is a fundamental aspect of exploratory information-seeking. Associative browsing represents a common and intuitive set of exploratory strategies in which users step iteratively from familiar to novel bits of information. In this paper, we examine associative browsing as a strategy for bottom-up exploration of large, heterogeneous networks. We present Refinery, an interactive visualizat...

In model-based refinery scheduling, the varying composition of the crude being refined is a major challenge, especially for those reaction processes. In this paper, a classification based, multi-model approach is proposed to handle the frequently varying crude. The idea is to build a scheduling model for each type of feed crude, and the type can be determined by using an online classifier. The ...