公开(公告)号：US20220193650A1

公开(公告)日：2022-06-23

申请号：US17130961

申请日：2020-12-22

Applicant: Scientific Design Company, Inc.

Inventor： Mohammad Ganjvar

IPC: B01J37/02 ,  C07D301/10 ,  B01J23/50

Abstract: An ethylene oxide (EO) reactor is provided in which a removable impingement basket is configured to be inserted into the reactor inlet pipe of the EO reactor. The removable impingement basket provides protection for the silver-based catalyst filled tubes and other components that are present inside the EO reactor as well as providing another access point into the EO reactor. The removable impingement basket also can provide better distribution of the inlet gas as compared to an EO reactor containing a non-removable impingement plate.

公开(公告)号：US20220226937A1

公开(公告)日：2022-07-21

申请号：US17575023

申请日：2022-01-13

Applicant: Scientific Design Company, Inc.

Inventor： Mohammad Ganjvar

IPC: B23K33/00 ,  B01J19/00 ,  B01J19/24

Abstract: Reduced tube pitch within a shell-and-tube heat exchange reactor such as, for example, an EO reactor, is provided by utilizing a welding material that has a high tensile (i.e., a tensile strength of greater than 600 MPa). Reduced tube pitch allows for more elongated tubes (the tubes are filled with a catalyst) to be present in a reactor, and thus a smaller reactor can be manufactured. Notably, the use of a high tensile strength welding material allows the implementation of a small welding groove located between a beveled sidewall of a beveled upper portion of an opening provided in a tube sheet overlay material (that is located atop a tube sheet) and an outermost sidewall of the elongated tube passing through the opening in the tube sheet overlay material.

公开(公告)号：US11865646B2

公开(公告)日：2024-01-09

申请号：US17575023

申请日：2022-01-13

Applicant: Scientific Design Company, Inc.

Inventor： Mohammad Ganjvar

IPC: B23K33/00 ,  B01J19/00 ,  B01J19/24 ,  B23K101/14

CPC classification number: B23K33/006 ,  B01J19/0053 ,  B01J19/2415 ,  B01J2219/00081 ,  B23K2101/14

Abstract: Reduced tube pitch within a shell-and-tube heat exchange reactor such as, for example, an EO reactor, is provided by utilizing a welding material that has a high tensile (i.e., a tensile strength of greater than 600 MPa). Reduced tube pitch allows for more elongated tubes (the tubes are filled with a catalyst) to be present in a reactor, and thus a smaller reactor can be manufactured. Notably, the use of a high tensile strength welding material allows the implementation of a small welding groove located between a beveled sidewall of a beveled upper portion of an opening provided in a tube sheet overlay material (that is located atop a tube sheet) and an outermost sidewall of the elongated tube passing through the opening in the tube sheet overlay material.

公开(公告)号：US20220203322A1

公开(公告)日：2022-06-30

申请号：US17564658

申请日：2021-12-29

Applicant: Scientific Design Company, Inc.

Inventor： Mohammad Ganjvar ,  Jiacheng Ni

IPC: B01J19/00 ,  F28D7/10

Abstract: A baffle (i.e., tube support) for use in a shell-and-tube heat exchange reactor, such as, for example, an ethylene oxide (EO) reactor, is provided that accommodates reduced tube pitch, and thus more catalyst packed tubes can be inside the reactor. The baffle, which can be referred to herein as a corrugated grid support, includes a plurality of corrugated stainless steel strips which sit into each other and form a grid pattern having tube openings. Each tube opening is configured to permit a catalyst packed tube to be inserted therein, while allowing a sufficient open area along the shell side of the tube to permit coolant to flow through the reactor.

公开(公告)号：US12030028B2

公开(公告)日：2024-07-09

申请号：US17564658

申请日：2021-12-29

Applicant: Scientific Design Company, Inc.

Inventor： Mohammad Ganjvar ,  Jiacheng Ni

IPC: B01J19/00 ,  F28D7/10

CPC classification number: B01J19/0013 ,  B01J19/006 ,  F28D7/10 ,  B01J2219/00081 ,  B01J2219/00763

Abstract: A baffle (i.e., tube support) for use in a shell-and-tube heat exchange reactor, such as, for example, an ethylene oxide (EO) reactor, is provided that accommodates reduced tube pitch, and thus more catalyst packed tubes can be inside the reactor. The baffle, which can be referred to herein as a corrugated grid support, includes a plurality of corrugated stainless steel strips which sit into each other and form a grid pattern having tube openings. Each tube opening is configured to permit a catalyst packed tube to be inserted therein, while allowing a sufficient open area along the shell side of the tube to permit coolant to flow through the reactor.

公开(公告)号：US20240091886A1

公开(公告)日：2024-03-21

申请号：US18524844

申请日：2023-11-30

Applicant: Scientific Design Company, Inc.

Inventor： Mohammad Ganjvar

IPC: B23K33/00 ,  B01J19/00 ,  B01J19/24

CPC classification number: B23K33/006 ,  B01J19/0053 ,  B01J19/2415 ,  B01J2219/00081 ,  B23K2101/14

Abstract: Reduced tube pitch within a shell-and-tube heat exchange reactor such as, for example, an EO reactor, is provided by utilizing a welding material that has a high tensile (i.e., a tensile strength of greater than 600 MPa). Reduced tube pitch allows for more elongated tubes (the tubes are filled with a catalyst) to be present in a reactor, and thus a smaller reactor can be manufactured. Notably, the use of a high tensile strength welding material allows the implementation of a small welding groove located between a beveled sidewall of a beveled upper portion of an opening provided in a tube sheet overlay material (that is located atop a tube sheet) and an outermost sidewall of the elongated tube passing through the opening in the tube sheet overlay material.

公开(公告)号：US11559799B2

公开(公告)日：2023-01-24

申请号：US17130961

申请日：2020-12-22

Applicant: Scientific Design Company, Inc.

Inventor： Mohammad Ganjvar

IPC: B01J8/06 ,  C07D301/10 ,  B01J37/02 ,  B01J23/50 ,  B01J37/08

Abstract: An ethylene oxide (EO) reactor is provided in which a removable impingement basket is configured to be inserted into the reactor inlet pipe of the EO reactor. The removable impingement basket provides protection for the silver-based catalyst filled tubes and other components that are present inside the EO reactor as well as providing another access point into the EO reactor. The removable impingement basket also can provide better distribution of the inlet gas as compared to an EO reactor containing a non-removable impingement plate.