Task: Translation
Input (Spanish): The residual gas stream from the distillation column is compressed to a higher intermediate pressure, cooled under pressure to condense it, and then expanded to low pressure to form the liquefied natural gas stream.
Output (English): La corriente de gas residual proveniente de la columna de destilacion se comprime a una presion intermedia mayor, se enfria bajo presion para condensarla, y luego se expande a baja presion para formar la corriente de gas natural licuado.