AIChE Spring Meeting and Global Congress on Process Safety

Benzene, toluene and xylene separation is a requirement for the production of the many valuable aromatic based materials used in consumer and industrial products. There are several options in performing these separations by distillation. This paper discusses the energy usage and capital cost...

During resid conversion processes, such as visbreaking or hydroconversion, more saturated pendant groups are cracked off asphaltenes, making them less soluble. Meanwhile, the more saturated volatile liquids formed during the conversion are often nonsolvents for asphaltenes. As a result, these...

Many similar safety incidents occur in ethylene plants throughout the world. While these should be well known to plant operators, our paper lists these more common safety incidents along with their root causes. We then discuss several less common safety incidents that have occurred: • Heater over-...

The increase of atmospheric carbon dioxide concentrations in recent years is well documented. Its potential link to an earth wide greenhouse-like effect has led recently to tighter regulations on carbon dioxide emissions from various industrial sources. One of the most common emitters is the fossil...

During LNG loading operation at Bontang LNG Terminal, the LNG vapor called Marine Boil Off Gas (MBOG) is always generated. Ideally, this vapor should be recovered to shore as an additional fuel gas supply or to be re-Liquefied. Nevertheless, due to some constraints, only around 23-37% of the total...

Carbon dioxide is the major product from coal combustion and is released into the air and causes global climate warming which we are facing today. Current technologies for capturing CO2 including solvent-based (amines) and CaO-based materials are still too energy intensive. Hence, there is critical...

Computational fluid dynamics (CFD) models have been widely proposed and developed to predict LNG vapor dispersion behavior and to determine safe separation distances around LNG production storage and transportation facilities. This is largely due to the ability of CFD codes to describe fully the...

Fired heaters are in the refining and petroleum industry. In the current scenario, it is important to maximize fired heater efficiency to the maximum achievable. Revamping is a cost effective way to maximize fired heater efficiency: FIS has carried out several heater revamp projects in the past 5...

Modern refining has become an extremely competitive business due to the deteriorating quality of crude oil coupled with tighter product specifications and more stringent environmental regulations. Process industry supply chains are therefore striving to improve efficiency. Resources can be used...

Gasification of coal – a low-cost and abundant domestic feedstock – and subsequent conversion to hydrogen and energy with simultaneous CO2 capture can improve national energy security in an environmentally responsible manner. To fulfill the promise of clean energy production through gasification of...