IBTE Weekly Test 2

High pressure promotes better absorption of light hydrocarbon in the absorber. Which is correct for the absorption tower?

• Gas absorb C3 and C4 components of naphtha in absorption tower

• Naphtha absorb C3 and C4 components of gas in absorption tower

• Naphtha absorb C3, C4 and C5 components of the gas in absorption tower

• Gas absorb C3, C4, C5 components of naphtha in absorption tower

Stabilizer is a rectifying tower. Which one is correct for the stabilizer?

• Absorption tower bottom oil is separated in the stabilizer, stabilized naphtha with qualified vapor pressure is obtained at the tower OVHD and LPG components (C3, C4) are obtained from the tower bottom

• Absorption tower bottom oil is separated in the stabilizer, LPG components (C3, C4) are obtained at the tower OVHD and stabilized naphtha with qualified vapor pressure is obtained from the tower bottom

• Desorption tower bottom oil is separated in the stabilizer, stabilized naphtha with qualified vapor pressure is obtained at the tower OVHD and LPG components (C3, C4) are obtained from the tower bottom

• Desorption tower bottom oil is separated in the stabilizer, LPG components (C3, C4) are obtained at the tower OVHD and stabilized naphtha with qualified vapor pressure is obtained from the tower bottom

What is the main operating absorber OVHD pressure and OVHD temperature?

• 0.87MPa and 24ᵒC

•  0.87MPa and 55ᵒC

• 1.0MPa and 24ᵒC

• 1.0MPa and 55ᵒC

What is the main operating desorber OVHD pressure and OVHD temperature?

• 0.87MPa and 24ᵒC

• 1.1MPa and 55ᵒC

• 1.1MPa and 24ᵒC

• 1.0MPa and 55ᵒC

What is the main operating Stabilizer OVHD pressure and OVHD temperature?

• 1.1MPa and 69ᵒC

• 1.1MPa and 55ᵒC

• 1.0MPa and 24ᵒC

• 1.0MPa and 55ᵒC

What is the heat source of desorber bottom reboiler 1012-E-630R?

• Atm 2# PA

• Atm 2^nd Side-draw

• 1.0MPa steam

• 0.5MPa steam

What is the heat source of stabilizer bottom reboiler 1012-E-640R/S?

• Atmospheric distillation tower 2# PA

• Atmospheric distillation tower 2^nd Side-draw

• 1.0MPa steam

• . 0.5MPa steam

What is LER unit raw material inlet to 1012-D-645?

• Naphtha from DHU, Naphtha from KHU, Light HC from DHU and LPG from CCR

• Pre-dist. tower OVHD naphtha, Atm. dist. tower OVHD naphtha

• KHU OVHD gas, DHU OVHD gas & Light HC OVHD gas from Reformer pre-Hydrogenation Unit

• Pre-dist. tower OVHD gas & Atm. dist. tower OVHD gas

List 5 important factors affecting product quality in LER unit?

What is the pinyin for routine inspection?

• Gēng huàn

• Xún Jiǎn

• Tíng Gōng

• Qǐ Dòng