Who is the responsible department for process changes?

In my opinion, this should be divided into two aspects: one is the changes in process operations, and the other is the changes in the process flow. The former falls under the production system, while the latter belongs to the technical management system. Even some very cautious changes in company operations must go through validation using the technical management system.

Process change, as the name implies, is led by the process team

The conditions for process changes start with design changes; if the changes are minor, there is no need to involve a design firm. The process team is responsible for creating the revised drawings, while the technical and process departments work together to adjust the technical parameters and control systems. Once a feasibility assessment is completed, the process team proceeds to operate according to the revised process flow. Only after no issues arise does the change take effect, following signatures from the company’s general manager, chief engineer, safety officer, process supervisor, and technical supervisor.

The Technical Department is responsible, while the Production Department carries out the implementation.

Engineering or design department

The general process is as follows; it depends on the specific procedures followed by your company: 1. Establishment of the renovation plan: The production workshop proposes the renovations; the workshop supervisor and the technical equipment department prepare a \"Renovation Application Form\" which is then signed and approved in writing. It is submitted for approval through discussions, and finally approved by the company. Upon approval, the petrochemical company shall submit a \"Renovation Liaison Form\" to the project department. 2. Renovation proposals put forward by the project department: The project department drafts a \"Renovation Application Form\", which is approved by the department’s management, followed by discussions in a meeting, and then submitted to the group company for approval. Once approved, the project department contacts the design institute to provide a renovation plan. 3. The renovation plan is organized by the project department; it is approved after being discussed jointly by relevant units such as the project’s engineering management department, the general manager of the petrochemical company, the production workshops, the technical equipment department, the safety department, and the environmental protection department, with all parties signing to confirm it. 4. The project department entrusts a design institute to carry out the design work. After the design institute submits the PID and PFD diagrams, the project department organizes a review session involving the petrochemical company, the production workshops, the technical equipment department, the safety department, the environmental protection department, and other relevant parties. Once the review is approved, all parties sign the documents, which are then submitted to the general manager of the group company for approval before detailed design work begins. II. Project Construction 1. The design institute carries out the detailed design, and the project department receives the drawings along with relevant technical instructions. 2. Upon receiving the drawings, the project department assigns appropriate personnel to conduct a review of the construction drawings, submits a material plan, and proceeds with the project construction. 3. Any issues related to the drawings that arise during the review process or during the construction phase must be submitted in writing to the project department (with relevant issues forwarded to the Technical Equipment Department, Safety Department, and Environmental Protection Department for confirmation). The project department then handles these issues in coordination with the design institute, and provides written responses to the Safety Department, Environmental Protection Department, and Technical Equipment Department. III. Project Acceptance 1. Once the renovation project is completed, the project team organizes an inspection in accordance with the renovation plan, with the participation of relevant parties such as the Petrochemical Company, the Technical Equipment Department, the Safety Department, the Environmental Protection Department, and the Design Institute (in coordination with the Technology R&D Department). All parties jointly conduct a three-inspection and four-confirmation process for the project renovation, and the results are discussed and confirmed through signing. 2. Based on the results of the three inspections and four verifications, the project department develops a rectification plan and ensures that it is carried out to the required quality and standards. IV. Commissioning of the plant: 1. All participating units shall fully cooperate to enable the plant to start operating following its renovation, until stable production is achieved. 2. Once the plant is operating stably, the project department shall prepare a \"Completion Certificate for the Renovation Project\"; after all participating units have signed it, it shall be submitted to the general manager of the petrochemical company and the equipment director for their signatures, thereby completing the handover of the plant for use. V. Other notes: 1. If there are still unfinished tasks that do not affect the plant’s operation once it has reached stable production, the department heads shall sign to confirm these tasks and complete them as soon as possible. 2. All signing records from the technical renovation process shall be filed in the archives. 3. In case of any other issues during the technical renovation, the relevant departments shall discuss them and provide supplementary explanations thereafter.