Cargo Change Procedure

					Next	Cargo
Previous	Butane	Butadiene	Butylene	C4-Raff	Ethene	Propane	Propene	P.O.	Promix	V.C.M.	C4-Crude
Cargo	O2<0.5%	O2<0.2%	O2<0.3%	O2<0.3%	O2<0.3%	O2<0.5%	O2<0.3%	O2<0.3%	O2<0.3%	O2<0,1%	O2<0.3%
					Dewp<-50C		Dewp<-50C
Ammonia								not
	2.4	1.2.3.	1.2.4.	1.2.4.	1.2.3.	2.4.	1.2.3.	permitted	1.2.3.	1.2.3.	1.2.3.
Butane		3.	4.
		<5%	<5%	E.-T.	2.3.	S	2.3.	2.3.	E.T.	2.3.	E.T.
Butadiene			4.	4.
	E.T.		<15%	<25%	2.3.	E.T.	2.3.	2.3.	2.3.	2.3.	E.T.
Butylene		3.
	E.T.	<5%C4		E.T.	2.3.	E.T.	2.3.	2.3.	2.3.	2.3.	E.T.
C4-Raff.		3.	4.
	E.T.	<5%C4	<75% C4		2.3.	E.T.		2.3.	2.3.	2.3.	E.T.
Ethene	S	3.	4.	S		S	3.		E.T.	3.	S
	Heating	<5%C2	<5% C2	Heating		Heating	<3000 ppm	2.3.	Heating	<1000 ppm	Heating
Propane		3.	4.		3.		3.			3.
	E.T.	<5%C3	<5% C3	E.T.	<1000 ppm		<5%C3	2.3.	E.T.	<1000 ppm	S
Propene		3.	4.		3.					3.
	E.T.	<5%C3	<5% C3	E.T.	<1000 ppm	E.T.		2.3.	E.T.	<1000 ppm	S
P.O.
	1.2.4.	1.2.3.	1.2.4.	1.2.4.	1.2.3.	1.2.4.	1.2.3.		1.2.3.	1.2.3.	1.2.3.
Promix		3.	4.							2.3.
	E.T.	<5%	<5%	E.T.	2.3.	S	2.3.	2.3.		<1000 ppm	S
V.C.M.
	2.4.	2.3.	2.4.	2.4.	2.3.	2.4.	2.3.	2.3.	2.3.		2.3.
Butane		3.	4.
Propane	S	<5% C3/C4	<5% 3/C4	E.T.	2.3.	E.T.	2.3.	2.3.	S	2.3.
C3/C4		3.	4.
Crude C4	E.T	<5% C3/C4	<5%C3/C4	E.T.	2.3.	S	2.3.	2.3.	2.3.	2.3.

1. Water wash

2. Visual inspection

3. Purge with Nitrogen only

4. Purge with Nitrogen or other inert gas

E.T.: Empty tank

S.: Standard requirements