Addressing the pressure for environmental upgrades faced by chemical production enterprises, we provide one-stop environmental technical renovation services, including wastewater treatment system expansion and standard upgrades, organized and unorganized waste gas governance (with a focus on specialized VOCs treatment), flue gas desulfurization and denitrification system upgrades, and the improvement of solid and hazardous waste treatment facilities. We have successfully delivered over 220 environmental renovation projects. Representative projects undertaken in recent years include: new installation and retrofitting of RTO regenerative oxidizers, VOCs tail gas treatment for methanol tank farms, installation and piping of high-throughput VOCs membrane separation and recovery units, comprehensive renovation for particulate matter and VOCs control, retrofitting of loading systems for oil and gas recovery, and comprehensive utilization of acid gas. We offer environmental status assessments and compliance gap analysis prior to renovation, and post-renovation monitoring and verification to ensure emissions meet standards, forming a complete closed-loop service.

Process Safety Analysis and Safety Instrumented System Design is one of the team's key specialized capabilities, with over 100 SIS/HAZOP/SIL-related projects completed. Service offerings include: HAZOP (Hazard and Operability Analysis) studies, LOPA (Layer of Protection Analysis) assessments, SIL (Safety Integrity Level) classification and verification, SIS system scheme design and construction drawing design, as well as combustible and toxic gas detection system design. Industry coverage spans petroleum chemical (million-ton refining and petrochemical projects), coal chemical (300,000-ton oil processing), fine chemical, electronic materials, food chemical, and other sectors. Extensive experience in both SIS retrofitting for existing facilities and concurrent SIS design for new facilities. Execution can be performed according to IEC 61511/IEC 61508 and other international standards.

Help traditional chemical plants upgrade towards digitalization, visualization, and intelligence. Service offerings include: 3D plant modeling based on SP3D/PDMS/Pdsoft (enabling pipe clash detection and virtual inspections), BIM model construction and integration with O&M platforms, full-process process simulation and optimization using Aspen Plus/Aspen HYSYS, pipe stress verification and flexibility assessment with CAESAR II, and VR immersive training and smart factory visualization solutions. Our internal team possesses specialized technical expertise in 3D modeling and smart factories, capable of delivering projects using mainstream platforms such as PDMS, SP3D, and BIM. This service is particularly suitable for owners planning to build digital twins for legacy facilities or those aiming to achieve digital delivery in a single step for new construction projects.

We can flexibly assemble and deploy technical teams covering all engineering design disciplines, including process, equipment, piping, instrumentation, electrical, civil structure/architecture, HVAC, water supply and drainage, and general layout, tailored to the actual needs of overseas projects. Our talent pool exceeds 570 professionals distributed across 11 regional branches in China, including many senior engineers and holders of various national registered engineer qualifications. We support diverse employment models ranging from short-term (1–3 months of on-site technical support) to long-term (6+ months of full-cycle accompanying design). Some team members have prior experience on overseas projects in Iran and the Middle East, possessing cross-cultural collaboration skills and English technical communication capabilities. Labor costs are quoted per person-month and can be flexibly negotiated based on professional configuration and on-site duration.

The company has accumulated systematic technical capabilities in carbon capture and resource utilization. The main technical routes include: CO2 capture and purification from cement kiln flue gas (CCS demonstration project), development of process package for 50,000 t/a adsorption-based CO2 capture from power plant flue gas, development of process package for 100,000 t/a CO2 hydrogenation to methanol, engineering design for boiler flue gas CO2 capture combined with nitrogen production, engineering design for new 50,000 t/a food-grade liquid CO2 project, and feasibility study preparation for 100,000 t/a food-grade liquid CO2 project. The technology covers the complete CCUS chain of capture, purification, and conversion utilization. Driven by global carbon neutrality policies, this technical direction holds significant compliance and commercial dual value for industrial enterprises.

Providing comprehensive on-site technical support during commissioning, trial operation, and startup phases for new chemical plants or expansion/modernization projects. Available experts cover various industry sectors including soda ash/ammonia-soda process, sulfuric acid/phosphoric acid, fine chemicals, coal chemical, petrochemical, pharmaceutical, new energy materials, electronic materials, and environmental protection. Service contents include: preparation of commissioning guidelines and integrated commissioning plans, guidance on unit commissioning and integrated commissioning, feedstock charging and startup with process parameter adjustments, product quality optimization, performance acceptance testing, review of operating procedures, and on-site hands-on training for owner's operating personnel. In the soda ash sector, the team has successfully achieved first-time startup for multiple combined/ammonia-soda process plants and accumulated unique expertise in whole-system mother liquor balance debugging. They have proven track records in overseas startup guidance for soda ash projects in Iran and LPG facilities in the Middle East.

Proficient in the two mainstream process routes: sulfuric acid production from sulfur and from pyrite. Among them, the 200,000-ton/year pyrite-to-sulfur process conversion has been certified as proprietary technology by an industry authority (China Petroleum and Chemical Engineering Design Association, 2008). In past performance, the 200,000-ton/year pyrite-to-sulfur conversion project and the 300,000-ton/year sulfuric acid project have both received provincial-level awards for excellent engineering design. Technical solutions can be flexibly configured based on the owner's sulfur resource endowment (sulfur or pyrite) and target production capacity, and can be integrated with downstream joint production projects such as phosphoric acid and phosphate fertilizers for overall technical planning. Full-process services extend from the process package to construction drawing design and commissioning guidance.

We can deploy a wide range of safety technology professionals, including safety evaluators, HAZOP facilitators, SIL assessment engineers, safety design review experts, fire protection design experts, and occupational health assessment experts. Our team includes a dedicated safety evaluation unit of approximately 30 personnel holding multiple professional qualifications such as safety evaluation, urban gas assessment, safety risk assessment, and safety auditing. We provide customized safety technical consulting services for chemical enterprises on demand, including: short-term on-site HAZOP reviews (typically 1–2 weeks), safety design reviews (aligned with basic or detailed design review milestones), guidance on safety management system construction, and safety culture training. For overseas chemical companies intending to enter the Chinese market, we also offer compliance consulting regarding Chinese safety regulations.

Customized technical retrofit solutions specifically developed for operating wet-process phosphoric acid plants, with the core objective of improving the recovery efficiency of fluosilicic acid from fluorine-containing tail gases. According to technical records, this technology is patent-protected and requires targeted development based on the specific operating conditions of each plant. The benefits of increased recovery rates include additional revenue from the sale of fluosilicic acid by-products (which can be further processed into hydrofluoric acid, potassium fluoride, etc.) and a reduction in fluorine-containing tail gas emissions. Services include the design of technical retrofit solutions and customized technology development. Deliverables consist of retrofit solution documents, construction drawings, operating guidelines, and patent authorization documents. The service period ranges from 2 to 14 months, depending on the scale of the retrofit.

Addressing the challenge of phosphogypsum storage in the phosphorus chemical industry, this technology converts phosphogypsum into two industrial products: sulfuric acid and cement, representing a circular economy process route. According to technical records, this technology offers significant economic attractiveness during periods of high international sulfur prices. Prerequisites for implementation include: first, the project site must have an adequate supply of coke; second, the sales issues arising from potential quality deviations in the co-produced cement must be considered in advance. Technical services cover the preparation of the process package, detailed engineering design, and commissioning guidance, with a cycle of approximately 3 to 12 months. This solution is recommended for phosphorus chemical industry owners facing significant pressure to dispose of phosphogypsum and having a high dependence on sulfur imports.