FIELD: machine engineering.
SUBSTANCE: installation of three-product preparation of sulfur dioxide gas includes an inlet separator, a dephlegmator, a reducing device and a low-temperature separator. Before the separator, an ejector with a debutanization gas feed line is installed in a mixture with the off-gas. A recuperative heat exchanger and a reducing device are installed before the reflux condenser. The low-temperature separator is connected by deethanization and condensate deethanizer lines to a deethanizer equipped with a propane-butane fraction recovery line. A reducing device and a debutanizer connected to the reflux condensate line with a reducing device, equipped with debutanization gas lines and a stable condensate outlet, are installed on the condensate outlet line from the inlet separator. On the commodity gas outlet line, following the recovery heat exchanger, there are desulfurization and dehydration units equipped with lines for the discharge of sulfur or its compounds and waste gas to the debutanization gas line, respectively.
EFFECT: preparation of sulfur dioxide gas, expansion of product range and improvement of gas and condensate quality.
1 dwg
