من به دنبال

The Solvay process for soda ash production generates approximately 10 cubic meters of distillation waste liquid per ton of soda ash, making waste liquid treatment a common industry challenge. Leveraging multiple proprietary technologies (such as waste slurry cavity injection, waste slurry mixing, and comprehensive waste liquid treatment), we provide technical retrofit services for the integrated management of waste liquids and sludge to existing Solvay process soda ash enterprises.

We have completed waste liquid treatment retrofit projects of various scales domestically, including large-scale Solvay distillation waste liquid treatment projects with a capacity of one million tons. Depending on the owner's geological conditions, site constraints, and environmental requirements, we offer various technical solutions, including underground cavity injection, solid-liquid separation, and by-product recovery.

We provide one-stop safety rectification services for chemical enterprises, addressing hidden hazards identified during safety inspections. Our services cover hazard diagnosis, rectification plan preparation, and construction drawing design. This includes redivision of explosion-proof zones, fire protection system renovation, alarm and interlock system upgrades, and completion of safety facilities.

Over the past fifteen years, we have successfully completed nearly 200 safety-related projects spanning soda ash, salt chemical, fine chemical, petrochemical, and new materials industries. Our service model is flexible, allowing us to tailor design delivery schedules based on hazard urgency and the owner's production planning.

Possesses comprehensive EPC (Engineering, Procurement, and Construction) general contracting capabilities spanning design, procurement, construction management, and commissioning acceptance. An internal dedicated general contracting project department is established, with a core management team of approximately 30 members, capable of flexible expansion based on project scale. Delivered EPC project types include: general contracting for a 300,000-ton/year caprolactam plant and supporting hydrogen production facilities; general contracting for large-scale steel sintering flue gas active carbon desulfurization and denitrification systems; overseas LPG tank farm expansion projects; integrated design and construction for molecular sieve catalyst plants; and general contracting for the design and construction of chemical wastewater treatment facilities. Capabilities also extend to special engineering such as seawater desalination process design. Deliverables encompass complete as-built documentation, performance assessment reports, operation and maintenance manuals, and systematic training for operators. The standard service cycle ranges from 6 to 24 months, depending on project complexity. Proven experience in executing EPC projects in overseas markets, including Iran.

Customized energy-saving, consumption-reduction, and technical upgrade services tailored for soda ash and combined alkali production enterprises. Core retrofit directions include: horizontal belt vacuum filter retrofit (replacing traditional vacuum drum filters with proprietary technology, listed in the National Key Energy-Saving Technology Catalog), new energy-efficient distillation system retrofit, calcination system energy optimization, matching adjustments for carbonation and filtration systems, distillation waste liquid treatment system upgrade, heavy soda ash fluidized bed drying system improvement, and mother liquor balance control optimization. Typical projects include: 150,000 tons/year energy-saving distillation retrofit (awarded industry design prize), 1.2 million tons/year filter system energy retrofit, 600,000 tons/year new horizontal belt filter installation, 700,000 tons/year vacuum belt filter technical retrofit, 300,000 tons/year calcination/carbon filtration system retrofit, 200,000 tons/year distillation system retrofit, and 450,000 tons/year CO2 emission reduction and combined alkali energy-saving environmental protection technical retrofit. Senior experts can be dispatched to overseas alkali plants for on-site energy efficiency diagnosis and customized retrofit solution development.

Energy-saving and consumption-reducing technology upgrade services customized for soda ash and joint-alkali production enterprises. Core transformation directions include: horizontal belt vacuum filter transformation (replacing traditional vacuum drum filters with self-developed technology, which has been listed in the National Key Energy-Saving Technology Catalog), new energy-saving distillation system transformation, calcination system energy-saving optimization, carbonization and filtration system matching adjustment, distillation waste liquid treatment system upgrade, heavy ash fluidized bed drying system improvement, and mother liquor balance control optimization. Typical projects include: 150,000 t/a energy-saving distillation transformation (won industry design award), 1.2 million t/a filter system energy-saving transformation, 600,000 t/a new horizontal belt filter, 700,000 t/a vacuum belt filter technical transformation, 300,000 t/a calcination/carbon filtration system transformation, 200,000 t/a distillation system transformation, 450,000 t/a CO2 emission reduction and joint-alkali energy-saving environmental protection technical transformation. Senior experts can be arranged to visit overseas alkali plants for on-site energy efficiency diagnosis and customized transformation solutions.

Energy-saving and consumption-reducing technology upgrade services customized for soda ash and joint-alkali production enterprises. Core transformation directions include: horizontal belt vacuum filter transformation (replacing traditional vacuum drum filter with self-developed technology, already included in the National Key Energy-Saving Technology Catalog), new energy-saving distillation system transformation, calcination system energy-saving optimization, carbonization and filtration system matching adjustment, distillation waste liquid treatment system upgrade, heavy ash fluidized bed drying system improvement, mother liquor balance control optimization, etc. Typical projects include: 150,000 t/a energy-saving distillation transformation (won industry design award), 1.2 million t/a filter soda system energy-saving transformation, 600,000 t/a new horizontal belt filter, 700,000 t/a vacuum belt filter soda technical transformation, 300,000 t/a calcination/filtration system transformation, 200,000 t/a distillation system transformation, 450,000 t/a CO2 emission reduction and joint-alkali energy conservation environmental protection technical transformation, etc. Senior experts can be arranged to visit overseas soda factories for on-site energy efficiency diagnosis and customized transformation solutions.

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.

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.

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.