Seeking help regarding the high consumption of oil for cleaning

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The specific consumption rate of wash oil is 100; the detailed data is provided below. Could everyone please help analyze whether this is due to operational control issues? The data seems to indicate so. I’ve also been on-site to supervise operations; they’ve been making adjustments, but it’s difficult to maintain proper control. If it’s so hard to control, how can we make improvements? I’d really appreciate everyone’s help. At our plant’s Coke Plant No. 2, control is quite good—the wash oil consumption rate there is just over 30. Meanwhile, at Coke Plant No. 1, slag discharge occurs frequently, practically every day. I believe operational factors play a major role here; dedicated personnel should be assigned to oversee operations on-site. However, I’ve just joined the Production Department and haven’t yet graduated from school, so I lack sufficient experience. I truly want to resolve this issue; please help me out. Let’s learn from each other. 123456789101112131415 Temperature at the outlet of the crude benzene condenser: 33.7, 34.6, 42.3, 43, 30.1, 31.3, 31.0, 38, 31.4, 29.9, 30.0, 28.3, 28.0, 34, 31.9, 32.1, 86, 30.6, 30.9, 39.8, 29.2, 83, 32.7, 29.2, 83, 31.2, 31.6, 33.3, 28.8, 31.8, 68, 27.2, 27.3, 02, 29.7, 32.6, 01, 31.1, 29.3, 33.3, 29.2, 06, 31.1, 84, 29.5, 31.3, 82, 29.9, 29.3, 04, 31.5, 32.4, 79, 27.6, 27.15, 5, 27.7, 30.5, 25, 29.6, 30.3, 32.6, 30.96, 5, 27.5, 21, 29.6, 23, 31.7, 46, 31.8, 93, 25.27, 5, 31.7, 34.28, 6, 27.3, 26.83, 8, 28.4, 30.03, 7, 28.15, 6, 40.78, 1. Temperature of oil enriched with solvent after exiting the tubular furnace: 152.38, 1, 150.07, 145.15, 153.26, 154.04, 2, 155.89, 153.45, 155.01, 8, 146.20, 7, 139.38, 9, 150.62, 3, 145.05, 151.40, 4, 151.69, 7, 156.67, 9, 155.26, 151.79, 5, 128.84, 1, 151.29, 143.34, 1, 152.08, 152.31, 48.27, 8, 144.46, 5, 139.09, 6, 149.45, 1, 147.88, 147.79, 149.74, 4, 153.45, 5, 153.15, 150.33, 1, 34.34, 1, 151.31, 50.62, 149.45, 107.64, 3, 152.89, 145.34, 8, 148.76, 7, 147.11, 49.45, 154.33, 5, 152.18, 6, 151.40, 4. Temperature of oil enriched with solvent after passing through the oil heat exchanger: 90.35, 4, 90.53, 3, 92.79, 6, 93.22, 92.18, 6, 91.41, 4, 89.07, 2, 86.87, 4, 83.45, 5, 85.53, 1, 89.68, 3, 89.56, 8, 88.88, 9, 91.88, 8, 88.15, 6. Temperature of oil enriched with solvent entering the tubular furnace and flow rate of lean oil pumped out are both approximately 60–62; the flow rate at the outlet of the final cooling tower is around 24. The above data represents readings taken at four randomly selected time points