公开(公告)号：WO2014004772A1

公开(公告)日：2014-01-03

申请号：PCT/US2013/048091

申请日：2013-06-27

Applicant: CHEVRON U.S.A. INC.

Inventor： O'CONNOR, Andrew Thomas ,  EL GIHENY, Kyrolos Paul ,  PARTEN, Sara Christine ,  CROWDER, Benjamin Roy ,  COOKE, David Lawrence ,  STEPANOV, Eugene Vladimirovich ,  SUZUKI, Teppei ,  WELCH, Bart Quentin

IPC: G06Q99/00

CPC classification number: G06F17/5009 ,  B01D53/1412 ,  B01D53/1456 ,  B01D2257/304 ,  B01D2257/504 ,  G01N17/02 ,  G06F2217/16

Abstract: Systems and methods for evaluating the corrosion risk in operations with equipment for the handling an acid gas- containing solutes, e.g., an amine unit for the removal of acid gases such as H 2 S, CO 2 , etc., are provided. Input parameter values corresponding to geometrical parameters of at least an equipment (or a portion of an equipment) susceptible to corrosion risk, operating parameters, fluid dynamic properties, and properties of the solute are received by the system. Based on the input values, the systems and methods derive a minimum pressure above which acid gas flashing occurs given the localized pressure drop, causing corrosion in the identified location. In one embodiment, the systems and methods provide an assessment correlating acid gas loadings with the corrosion risk.

Abstract translation: 提供了用于处理含酸性气体的溶质的设备的操作中的腐蚀风险的系统和方法，例如用于除去酸性气体如H 2 S，CO 2等的胺单元。 系统接收与至少易受腐蚀风险，操作参数，流体动力特性和溶质特性影响的设备（或设备部分）的几何参数对应的输入参数值。 基于输入值，系统和方法导出最小压力，在该最小压力下，由于局部压降而发生酸性气体闪蒸，导致识别位置的腐蚀。 在一个实施例中，系统和方法提供将酸性气体负载与腐蚀风险相关联的评估。

公开(公告)号：WO2016190977A1

公开(公告)日：2016-12-01

申请号：PCT/US2016/027434

申请日：2016-04-14

Applicant: CHEVRON U.S.A. INC.

Inventor： JOHNS, Jeff William ,  SOUERS, Steven Alden ,  MCDANIEL, Douglas Gayle ,  COOKE, David Lawrence ,  BOSI, David Michael

IPC: B01J8/00 ,  C10G49/00 ,  B01J19/00 ,  B01J8/02

CPC classification number: B08B9/08 ,  B01J8/003 ,  B01J8/0035 ,  B01J8/0285 ,  B01J19/0013 ,  B01J38/10 ,  B01J2208/00256 ,  B01J2208/00761 ,  B01J2208/00769 ,  B08B5/04 ,  B08B9/093 ,  B08B9/283 ,  B08B9/34 ,  C10G49/00 ,  C10G2300/4031 ,  C10G2300/701

Abstract: Processes for shutting down a hydroprocessing reactor and for removing catalyst from the reactor may comprise shutting off hydrocarbon feed to the reactor, stripping hydrocarbons from the catalyst, cooling the reactor to a first threshold reactor temperature, purging the reactor with N 2 gas, introducing water into the reactor, and dumping the catalyst from the reactor, wherein the first threshold reactor temperature may be substantially greater than 200°F. In an embodiment, the water may be introduced into the reactor via a quench gas distribution system when the reactor is at a second threshold reactor temperature not greater than 200°F to cool the reactor to a third threshold reactor temperature not greater than 120°F.

Abstract translation: 关闭加氢处理反应器和从反应器中除去催化剂的方法可包括：将烃进料切断至反应器，从催化剂中汽提烃，将反应器冷却至第一阈值反应器温度，用N 2气体吹扫反应器，将水引入 反应器，并从反应器中倾倒催化剂，其中第一阈值反应器温度可以基本上大于200°F。 在一个实施方案中，当反应器处于不大于200°F的第二阈值反应器温度时，可以通过骤冷气体分配系统将水引入反应器，以将反应器冷却至不超过120°F的第三阈值反应器温度 。