Economic evaluation for the retrofit of chemical processes through waste minimization and process integration

Journal Article · Sun Dec 01 04:00:00 EST 1996 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie9507787· OSTI ID:419847

Dantus, M M; High, K A ^[1]

---

1. Oklahoma State Univ., Stillwater, OK (United States). School of Chemical Engineering

This research involves the development of an economic-based methodology for waste minimization and reduction of energy consumption in the chemical industry by modifying existing processes. The methodology consists of identifying waste minimization options through a sensitivity analysis and flowsheet configurations through a hierarchical procedure. The alternatives identified together with the heat-exchanger network were used to construct a superstructure that was formulated as an MINLP problem. The superstructure was evaluated and optimized with ASPEN PLUS. An economic model based on the net present value method that incorporates both manufacturing and capital costs was used to select the most profitable configuration. The production of methyl chloride was used to evaluate the methodology. Results obtained identified the optimized base case as the best process. When considering byproducts as wastes, the hydrochlorination of methanol using an adiabatic plug flow reactor was identified as the best process.

• OSTI ID: 419847
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 12 Vol. 35; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CHEMICAL INDUSTRY
COMPLIANCE
COMPUTERIZED SIMULATION
ECONOMIC ANALYSIS
ENERGY CONSERVATION
HEAT EXCHANGERS
MINIMIZATION
NETWORK ANALYSIS
POLLUTION REGULATIONS
WASTE MANAGEMENT