000			01570nab a2200181 4500
005			20260520004405.0
008			260224s2012 xxu
245	0	0	_aExamples of safety studies and SIL analysis on the ammonia plants of OCI nitrogen
260			_a _b _cmar. 2012
270			_a26/04/2012 ; 26/04/2012
300			_a5 p. ; 83-88
520			_aTranscripción del resumen del autor: A safety audit is almost invariably performed on new plant designs in the chemical industry. This will include at least a Hazop study of the basic design. Many plant owners also require an analysis of the safety integrity level or other methods of the installed safety measures. The concept of acceptable risk changes with time, but many existing plants operate year after year without a systematic assessment of the safety level, even if the plant is revamped or modified. In addition, operating procedures may change without all safety aspects being considered in a formalized way. This sometimes leads to very dangerous and costly incidents, which could have been avoided if regular and systematic safety audits had been performed. This article will discuss the systematic safety assessments that are performed at regular intervals on the 40- and 27-years old OCI Nitrogen ammonia plants in The Netherlands. Examples are presented showing learning points that were found after a Hazop and a SIL analysis.
581			_a1
773	0		_tProcess safety progress _g31
942			_cARTICULO
100	1		_aDuisters, Harrie _952451
999			_c187081 _d187081