There are problems with the MDEA CO2 absorption cycle; seeking help! !

Flowsheet Analysis: Block $OLVER01 (Method: BROYDEN) has been defined to converge streams: 13 17 23. COMPUTATION ORDER FOR THE FLOWSHET: $OLVER01 A D CC C F G K L BB H J O P (RETURN $OLVER01). Calculations begin... > Beginning Convergence Loop $OLVER01, Method: BROYDEN. Streams being converged: 13 17 23. Block: A, Model: RADFRAC. *** SEVERE ERROR: A liquid feed/pump around is required when “Q1=0” is specified in “COL-SPECS”; the required feed/pump around has zero flow. * WARNING: The rest of the block is bypassed due to this severe error. Block: D, Model: PUMP. * WARNING: The mixed substream has zero flow; the block is bypassed. Block: CC, Model: HEATX. * WARNING: At least one feed has zero flow; the block is bypassed. Block: C, Model: RADFRAC. * WARNING: Zero feed – the block is bypassed. Block: F, Model: HEATER. * WARNING: Zero feed to this block; the block is bypassed. Block: G, Model: FLASH2. * WARNING: Zero feed to this block; the block is bypassed. Block: K, Model: PUMP. * WARNING: The mixed substream has zero flow; the block is bypassed. Block: L, Model: MIXER. Block: BB, Model: FSPLIT. Block: H, Model: PUMP. * WARNING: The mixed substream has zero flow; the block is bypassed. Block: J, Model: HEATER. * WARNING: Zero feed to this block; the block is bypassed. Block: O, Model: MIXER. Block: P, Model: FSPLIT. > Loop $OLVER01, Method: BROYDEN. Iteration 1: Streams being converged: 13 17 23; 10 variables have not yet converged, Max Err/Tol = 0.10000E+07. Block: A, Model: RADFRAC. Convergence iterations: OL ML IL; Err/Tol values: 1 1 8 9415.6, 2 1 4 5134.9, 3 1 3 3864.0, 4 1 3 3212.1, 5 1 3 2467.1, 6 1 3 992.98, 7 1 2 565.19, 8 1 2 416.57, 9 1 2 196.74, 10 1 2 117.65, 11 1 2 52.031, 12 1 2 45.313, 13 1 2 53.645, 14 1 2 26.254, 15 1 1 16.946, 16 1 1 11.022, 17 1 1 6.0214, 18 1 2 4.0661, 19 1 2 3.4480, 20 1 2 1.7980, 21 1 2 1.9325, 22 1 2 1.4049, 23 1 2 1.4709, 24 1 2 1.1806, 25 1 2 0.36515. Block: D, Model: PUMP. Block: CC, Model: HEATX. * WARNING: At least one feed has zero flow; the block is bypassed. Block: C, Model: RADFRAC. *** SEVERE ERROR: The column is not in mass balance. Check feeds, products, COL-SPECS, and adjust SKWs. *** SEVERE ERROR: The column is not in mass balance. Check feeds, products, COL-SPECS, and adjust SKWs. *** SEVERE ERROR: CMBAL calculations failed; run again with any suggested changes if any exist. *** SEVERE ERROR: Material and energy balances failed to converge; check COL-SPECS or provide better estimates for temperature and composition. * WARNING: The rest of the block is bypassed due to this severe error.

I don’t know how to upload the file. .

Try giving a initial value to the tearing flow rate; it indicates that the circulation flow rate is zero

No need, I get it. There are many fewer errors now. Thank you.:lol