公开(公告)号：WO2018162692A1

公开(公告)日：2018-09-13

申请号：PCT/EP2018/055852

申请日：2018-03-08

Applicant: LINDE AKTIENGESELLSCHAFT

Inventor： SCHREINER, Bernhard ,  TAUTZ, Hanno ,  TIAN, Xiaoping

IPC: F23D14/22 ,  C01B17/04

Abstract: The present invention relates to a method for partial reduction of SO 2 , wherein a SO 2 stream, an oxidant and a gaseous fuel are fed to a burner and reacted in a flame reaction. The burner comprises at least one supply opening for the SO 2 stream, at least one supply opening for the oxidant and at least one supply opening for the gaseous fuel, and a burner head (1) with first injection sets (7, 8) and second injection sets (9). First injection sets (7, 8) are arranged in a first section (4) of the burner head (1), and second injection sets (9) are arranged in a second section (5) of the burner head (1). The stoichiometric ratio of SO 2 , fuel and oxidant supplied through the first injection sets (7, 8) is different from the stoichiometric ratio of SO 2 , fuel and oxidant supplied through the second injection sets (9).

公开(公告)号：WO2018020047A1

公开(公告)日：2018-02-01

申请号：PCT/EP2017/069255

申请日：2017-07-29

Applicant: LINDE AKTIENGESELLSCHAFT

Inventor： SCHREINER, Bernhard ,  TIAN, Xiaoping

IPC: F23D14/22 ,  F23D14/32 ,  F23D14/76 ,  F23D14/78 ,  C01B17/04

CPC classification number: C01B17/0417 ,  F23D14/22 ,  F23D14/32 ,  F23D14/76 ,  F23D14/78 ,  F23L2900/07006 ,  F23L2900/07007 ,  Y02E20/344

Abstract: In order to overcome the limitations and problems that earlier methods have experienced, the present invention relates to a method for operating a burner (1) used in the thermal step of a Claus process. The burner comprises at least one combustion air port (4), at least one oxygen port (3), and at least one fuel port (2). An oxidant flow (6) is made up of an oxygen flow of technical pure oxygen with an oxygen concentration of at least 90 vol. %, preferably at least 99 vol. %, and if necessary of a second gas flow, and it is determined whether the oxygen flow is below a pre-set minimum flow and if the oxygen flow is below a pre-set minimum flow the air flow is split into a main air flow and a side air flow and the oxygen flow is combined with the side air flow creating an oxygen-enriched side air flow which is fed to the oxygen port. The present invention further relates to a corresponding burner.

Abstract translation: 为了克服早期方法已经经历的限制和问题，本发明涉及一种用于操作在克劳斯过程的热步骤中使用的燃烧器（1）的方法。 燃烧器包括至少一个燃烧空气口（4），至少一个氧气口（3）和至少一个燃料口（2）。 氧化剂流（6）由技术纯氧的氧气流组成，氧气浓度至少为90体积％。 ％，优选至少99vol。 ％，并且如果需要第二气流，并且确定氧气流量是否低于预设的最小流量并且如果氧气流量低于预设的最小流量，则气流被分成主气流 并且侧面气流和氧气流与侧面气流结合，形成供应到氧气口的富氧侧气流。 本发明还涉及相应的燃烧器。