Pyrolysis Gasoline Hydrogenation and Fractionation gen.

[google translator]

The Propylene Refrigeration system provides 4 temperature levels of refrigeration. Propylene refrigeration mainly provides DUTY for C2 fractionator condenser, the binary refrigerant condenser, the HP and LP depropanizer condensers, the charge gas chilling and Demethanizer feed chilling.
The binary refrigerant (BR) system combines the methane and ethylene refrigerants as a single stream of constant composition. The system provides the coldest level of refrigeration in the plant. Binary refrigeration provides DUTY for the chilling of the charge gas and Demethanizer reflux and C4 hydrogenation off gas cooler.

1) Как вы думаете что DUTY значит?
и..
2) В "..provides DUTY for the chilling of the charge gas and Demethanizer reflux and C4 hydrogenation off gas cooler" слово chilling относится к charge gas и Demethanizer reflux, или к только к reflux, т.е. рефлюкса техн. газа и деметанизатора?

Спасибо

[Шалбанодаритель]

может РАБОТА?

[gni153]

1. duty-режим работы
2.

[fiammetta]

1. возможно, мощность
2. к обоим. см. выше "charge gas chilling and Demethanizer feed chilling"
Demethanizer reflux - орошение колонны дементанизации