TSS data for various grades
ID
Location
Sample #
Differential pressure (psid)
Sample
Gravimetric content (mg/L)
volume (lit)
Conventional
Inlet
1 2 3 4 5 6 7 8 9
27 27
3.7 3.7 4.0 4.0 1.4 3.7 4.0 4.0 4.0 4.0 4.0 4.0 2.8 2.8 4.0 4.0
4.1 1.7 1.3 0.5 8.0 1.1
Outlet
B
Inlet
5 5
Outlet
B
Inlet
25 25 30 30 18 18
Outlet
B
Inlet
11.2 0.7 0.9 0.3 1.0 ND¹ 8.0 1.1 ND¹ ND¹
Outlet
E
Inlet
Outlet
10 11 12 13 14 15 16
F
Inlet
6 6
Outlet
F
Inlet
30 30 15 15
Outlet
F
Inlet
Outlet
1. The ND measurement is a function of the sample volume, but is generally < 0.25 mg/L.
Table 2
Analysis Initial fluid quality analysis of the recirculating rich amine system showed a TSS level of 4.1 mg/L at the inlet and 1.7 mg/L at the outlet before the new Element B1 was installed. Within two hours of installing Element B1, TSS levels dropped to 1.7 mg/L inlet and 0.5 mg/L outlet, indicating rapid system clean-up. Given the system’s three- hour residence time, this result demonstrated the
effectiveness of full-flow filtration in reducing contamination. During a rich pump switch, TSS levels spiked to 8 mg/L at the inlet, though the outlet remained at a relatively low 1.1 mg/L – still outperforming conventional filters. A week later, high inlet contamination (11.2 mg/L) was recorded with a low 0.7 mg/L outlet; however, poor sampling practices were suspected. Later samples showed continued improvement in fluid quality, with TSS dropping to 0.9 mg/L inlet and 0.3 mg/L outlet, and eventually to 1.0 mg/L inlet with non-detectable effluent levels. However, a plant upset caused a temporary spike to 8 mg/L inlet TSS. Despite this, outlet TSS held at 1.1 mg/L, indicating that the filters
Analysis of the effect of media spacers
Description
Single spacer
Double spacer
Increased life
due to
run life (h)
run life (h) double spacer
Novalite X Novalite Y
77.2 (A1, A2)
161.0 (B2)
109% 184%
89.4 (D1, D2) 253.3 (E1, E2)
Figure 3 Photomicrograph of quench water TSS membrane
Table 3
Refining India
62
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