Abstract: A process for obtaining a product gas and product LNG having pressure P1 close to the atmospheric pressure from lean LNG, includes: a) branching the lean LNG to obtain a first flow and a second flow; b) cooling the second flow by using a refrigerant; c) branching a liquid flow derived from the cooled second flow to obtain refrigerant LNG and remaining LNG; d) subjecting the remaining LNG to pressure reduction and gas-liquid separation to obtain a gas phase flow and a liquid phase flow (product LNG) having pressure P1; e) subjecting the refrigerant LNG to pressure reduction; f) using a flow from the step e as the refrigerant; g) joining, before or after the step f, the gas phase flow having pressure P1 to a flow from the step e; h) liquefying a flow resulting from the steps f and g by pressure increase and cooling (through heat exchange with the first flow); i) increasing the first flow in pressure before the step h; j) obtaining the product gas by regasifying the first flow after the steps h and i; and k) joi

Abstract: A control system includes a control engine that cyclically updates internal state values on the basis of a signal exchanged with a control target; a security engine that executes an incident response operation in response to an incident that possibly occurs in the control system; and a phase update module that updates a phase value indicating an operation state of the control target on the basis of one or more values selected discretionarily in advance by a user from among the internal state values retained by the control engine. The security engine retains operation definition information in which the content of the incident response operation is defined for each phase, and executes a corresponding incident response operation defined in the operation definition information in accordance with the phase value updated by the phase update module.

Abstract: A support device is connected to a controller system that controls a control target. The controller system can execute an incident response operation of changing a behavior in accordance with an incident that may occur in the controller system. The support device includes a selection module and a setting module. The selection module receives selection of a facility type corresponding to the control target among plural facility types which is preset. The setting module reflects a response rule corresponding to the selected facility type in the controller system by referring to a response rule that is prepared in advance for each of the facility types and defines a behavior for an incident.

Abstract: A controller system according to the present invention includes: a control unit that executes control calculation for controlling a control target; a security unit that is connected to the control unit and that is in charge of security functions for a controller system; an attack pattern creation part for acquiring setting information in the controller system and creating an attack pattern for the controller system on the basis of the acquired setting information; and an attack execution part for executing an attack on the controller system according to the created attack pattern and evaluating whether or not the security functions set in the controller system are valid on the basis of the behavior of the controller system in response to the attack.

Abstract: To provide a process for separating hydrocarbons capable of recovering ethane or propane, including improved cold heat recovery enabling a reduction in compressor power.

Abstract: A process for obtaining a product gas and product LNG having pressure P1 close to the atmospheric pressure from lean LNG, includes: a) branching the lean LNG to obtain a first flow and a second flow; b) cooling the second flow by using a refrigerant; c) branching a liquid flow derived from the cooled second flow to obtain refrigerant LNG and remaining LNG; d) subjecting the remaining LNG to pressure reduction and gas-liquid separation to obtain a gas phase flow and a liquid phase flow (product LNG) having pressure P1; e) subjecting the refrigerant LNG to pressure reduction; f) using a flow from the step e as the refrigerant; g) joining, before or after the step f, the gas phase flow having pressure P1 to a flow from the step e; h) liquefying a flow resulting from the steps f and g by pressure increase and cooling (through heat exchange with the first flow); i) increasing the first flow in pressure before the step h; j) obtaining the product gas by regasifying the first flow after the steps h and i; and k) joi