公开(公告)号：US20210387142A1

公开(公告)日：2021-12-16

申请号：US17050877

申请日：2018-06-04

Applicant: SK GAS CO., LTD. ,  KOCAT INC.

Inventor： Ung Gi HONG ,  Mi Young LEE ,  Deuk Soo PARK ,  Jung Ho KIN ,  Jin Young KIM ,  Chang Hee YANG

IPC: B01D53/79 ,  B01D53/56

Abstract: Provided is a method for using selective non-catalytic reduction to reduce nitrogen dioxide in exhaust gas generated during an olefin production process. Nitrogen dioxide generated in a catalyst regeneration step of a continuous PDH process can be efficiently removed by the method of the present disclosure. Ultimately, the generation of visible fumes can be prevented through the removal of nitrogen dioxide.

公开(公告)号：US20240401504A1

公开(公告)日：2024-12-05

申请号：US18698658

申请日：2022-09-23

Applicant: SK GAS CO., LTD.

Inventor： Jungho CHO ,  Ung Gi HONG ,  Mi Young LEE

IPC: F01K27/00 ,  F01K25/10

Abstract: LNG cold power generator includes: a working fluid including carbon dioxide and ethane; a pump; an evaporator; a turbine; and a condenser. A molar ratio of the carbon dioxide and the ethane is 85˜95:15:0.5. The working fluid is used in a closed Rankine cycle. A supply pressure of supplied LNG is adjusted to a pressure at which it becomes a saturated liquid. A temperature at an outlet of the condenser is adjusted to a saturated vapor temperature of LNG. A pressure at an outlet of the pump is adjusted to a critical pressure of a mixed working fluid. The cycle includes two turbines and a heater provided therebetween. The heater heats the working fluid to prevent condensation thereof.