[Haichuan Project Updates] Environmental impact assessment approved for Pangang’s 2.35 million-ton coking facility and 3 dry quenching systems
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The environmental impact assessment for Sichuan’s 2.35 million tons of coking capacity and three dry quenching systems has been approved. Recently, the environmental impact report for the energy-saving and environmental protection renovation project of the coke ovens at Panzhihua Iron and Vanadium Co., Ltd., part of Panzhihua Iron and Steel Group, was approved by the Sichuan Provincial Department of Ecology and Environment. The text of the approval is as follows: The “Environmental Impact Report on the Energy-Saving and Environmental Protection Renovation Project of Panzhihua Iron and Vanadium’s Coke Ovens” (hereinafter referred to as the “Report”) has been received. After examination, the approval is as follows: 1. The project (project code: 2019-510400-31-03-328831) is planned to be carried out in two phases within the existing coking plant area in the Nongnongping section of the High-Tech Industrial Park in the East District of Panzhihua City. The main construction tasks for Phase 1 include: (1) demolishing 3 corridors and 3 coal transfer stations of the original coal preparation system, Blast Furnace System No. 3 coal injection tank and No. 4 mill circulating water pump station, the dehydration tank of the gas purification system, the urea and crude benzene distillation units, as well as the low-pressure electromagnetic station and water tower electromagnetic station, and the chemical product temperature and pressure reduction station, etc ； (II) Construction of 2 new 55-chamber, 7-meter-top-mounted coke ovens (referred to as A/B coke ovens), as well as 3 dry quenching systems (one of which will serve as a backup after the completion of Phase II); coke treatment systems for the A/B coke ovens; 6 corridors and 5 transfer stations; a crude benzene distillation system; and flue gas desulfurization, denitrification, and ammonia vaporization devices for the A/B coke ovens ； (III) New air-jet scrubbers have been added to the gas purification and recovery systems for coke ovens No. 1, 2, 3, and 4 (referred to as System 1); vertical tar-ammonia water separation units and air-jet scrubbers have been added to the gas purification and recovery systems for coke ovens No. 5 and 6 (referred to as System 2) ； (IV) Renovate crude benzene loading stations, etc. The remaining public and auxiliary facilities rely on existing engineering facilities.
Main construction contents of Phase II: (1) Demolish Cokes Ovens No. 5 and No. 6, as well as the backup wet quenching device and the tar-ammonia water separation device； (II) Build 2 new 50-chamber, 6-meter-high top-loading coke ovens (referred to as C/D coke ovens) at the locations of the original No. 5 and No. 6 coke ovens, as well as a device for desulfurization, denitrification, and ammonia vaporization of coke oven flue gas ； (III) For the gas purification and recovery system, a new vertical tar-ammonia water separation unit will be installed, and the existing dry quenching unit will be modified.
Upon completion of the first phase, furnaces A and B will produce 1.35 million tons of coke per year; furnaces 5 and 6 will be shut down as a result. By adjusting the production and coking times of furnaces 1, 2, 3, and 4, it is ensured that the total annual coke production of the entire plant does not exceed 3.45 million tons. Upon completion of the second phase, C/D coke ovens will produce 1 million tons of coke per year; ovens No. 3 and No. 4 will be demolished subsequently to ensure that the plant’s total annual production capacity of 3.45 million tons of coke remains unchanged ； The other types of chemical products and their annual production capacities remain unchanged. The total investment for the project is approximately 2,309.91 million yuan, of which 425.1265 million yuan is allocated to environmental protection measures.
Strictly in accordance with the requirements of the report, implement and optimize measures for air pollution control. Depending on the different properties and forms of exhaust gas pollutants, facilities such as filter cartridge dust removal, \"collection hood + membrane-covered bag dust removal\", \"collection hood + water seal + membrane-covered bag dust removal\", \"SDS dry desulfurization + membrane-covered bag dust removal + low-temperature SCR denitration\", \"PPS needle-punched felt bag dust removal + SDS dry desulfurization + membrane-covered bag dust removal + low-temperature SCR denitration\", and \"collection hood + flame arrester + membrane-covered bag dust removal\" are used for treatment, to ensure that various air pollutants are discharged up to standard through chimneys of appropriate height. Both the pulverized coal and coke conveying corridors are fully enclosed; the furnace top, rising pipes, bridge pipe joints, etc., are sealed using different materials to minimize uncontrolled emissions of exhaust gases from the furnace.
Take measures to reduce the use of fresh water and conserve water resources. Various types of condensate water, water seal water from production facilities, wastewater from waste gas treatment units, laboratory wastewater, and initial rainwater are all sent to the phenol-cyanide wastewater treatment plant within the factory site for treatment. Once they meet the standards specified in Table 1 of the \"Emission Standards for Pollutants in the Coking Chemical Industry\" (GB16171-2012), they are used for slag cooling and not discharged outside the facility. The wastewater from various devices and equipment is circulated and sent to the steel slag wastewater treatment plant of the group company for treatment; after meeting the standards specified in Table 2 of the \"Emission Standards for Water Pollution in the Iron and Steel Industry\" (GB13456-2012), part of this water is used as industrial water by the group company, while the remaining amount is discharged into the Jinsha River.
The last edit to this post was made by Desert Fish on July 10, 2020, at 13:52. On May 19, 2020, with the issuance of the winning bid notice for the compressors required for Shaanxi Yanchang Petroleum Yushen Energy Chemical Co., Ltd.’s (hereinafter referred to as “Yushen Energy Chemical”) 500,000 tons per year coal-based ethanol project, the tendering process for all 25 sets of long-life equipment as well as for the three EPC contracts related to this ethanol project was completed. Since then, the construction of the Yushen 500,000 tons per year coal-based ethanol project has entered a new phase and reached a new level. The Yushen Nenghua 500,000 tons/year coal-based ethanol project is an expanded version of the world’s first industrial-scale project for producing ethanol from syngas at a capacity of 100,000 tons per year. This project was developed using proprietary technology owned by the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, in collaboration with Shaanxi Yanchang Petroleum (Group) Co., Ltd. Affected by the pandemic, the project bidding process, which was supposed to be completed at the beginning of the year, finally saw the opening of bids for phases 1 and 2 of the EPC contract on April 14; Beijing Petrochemical Engineering Co., Ltd. won both bid packages ； On April 30, the last unit among the 25 sets of long-cycle equipment purchased by the company – the carbon dioxide compressor – was successfully awarded to a bidder. With this, all 25 sets of long-cycle equipment for this project have been acquired by well-known manufacturing enterprises across various industries in China ； On May 6, the selection of a contractor in China capable of taking on the overall responsibility for the gasification unit required for this project was finalized after intense negotiations. In the end, Aerospace Changzheng Chemical Engineering Co., Ltd. joined forces with Yushen Energy Chemicals once again, to work together toward achieving this ambitious goal, building on their previous collaboration in providing the process packages. It is reported that the conclusion of this project construction bidding process holds great significance and marks an important milestone for Yushen Company’s construction projects. This means that the means for controlling the progress of the Yushen Nenghua construction project have been established ； It means that the framework for controlling the estimated investment in this project is now solid ； It means that the dam for project quality control has been built. It marks the unfolding of Yushen Energy’s grand vision ； It also marks the opening of a path for project construction to move from theoretical discussions to actual implementation. (Ren Qing)
On the morning of June 16, 2020, Shaanxi Yanchang Petroleum Yushen Energy Chemical Company (hereinafter referred to as the “Company”) held a joint review meeting for the secondary progress plan of the 500,000 tons per year coal-based ethanol project. The meeting was chaired by Gao Youzhi, the company’s vice general manager and chief engineer. Representatives from relevant departments of the company and the heads of various project teams, as well as representatives from the supervision unit, Beijing Engineering Company, Beijing Aerospace Engineering Company, Qingshan Technology Company, and Shaanxi Chemical Construction Company, attended the meeting. At the meeting, the Project Control Department reported on the preparation of the project’s secondary schedule. Key tasks such as \"the first boiler being ready for ignition,\" \"the completion of the air separation unit,\" and \"the completion of the main substation\" were discussed. All parties present agreed on the dates for the project’s milestones, and a meeting minutes was prepared. The meeting required the Project Control Department to issue the project’s secondary schedule in accordance with the established procedures. The EPC contractor and various subcontractors were instructed to prepare the tertiary schedule, the quaternary schedule, as well as various specific plans based on this secondary schedule. All parties involved in the project should advance its construction fully in line with the scheduled milestones, striving to complete and put the project into operation at the earliest possible time.