Davis & Associates Consulting, Inc.; Project List

List of Projects Completed by Richard L. Davis in the Past Eleven Years

Client	Project Description	Year

Knaerner Chemetics	Provided technical assistance in the area of sulfur handling	01
Maroc Phosphore	Provided detailed design of the ammonia scrubber on a single absorption plant	01
Duke Engineering	Reviewed the operating performance of a phosphoric acid complex	01
JR Simplot Company	Provided an evaluation of an existing ammoniom thiosulfate production facility	01
Fluor Daniels	Provided consolation concerning abritation of sulfur burning plant build in conjunction with a nickel leach project	01
JR Simplot Company	Evaluated an existing ammonium thiosulfate plant	01
Global Environmentals Services	Evaluated the reconstruction of an existing sulfuric acid plant	01
JR Simplot Company	Reviewed the operation of an existing ammonia scrubber	00
JR Simplot Company	Reviewed specifications of the revamp of an existing sulfuric acid plant	00
JR Simplot Company	Reviewed plant specifications for a new sulfuric acid plant	00
KC Chemicals	Evaluated the conditions of an existing sulfuric acid plant for potential investment	00
PCS Phosphates	Reviewed repair and operating procedures to repair a waste heat boiler	99
PCS Phosphates	Provided technical evaluation of an acid mist carryover problem	99
Amosiphos	Provided technical evaluation of Uzbekistan sulfuric acid plants	99
Kemira Pigments	Evaluated plant operation and made recommendations to improve reliability of plant and to increase production rate	99
Albright & Wilson	Reviewed plant operation to determine reasons for economizer and boiler failures	99
Tampa Electric Company	Providing on-going technical support to the daily operation of the Company's only sulfuric acid plant	99
AES Deepwater	Providing process design and evaluation to an ammonia scrubber for a power boiler flue gas	99
Agrium	Providing process engineering services to develop a scope for a major expansion and modernizations to a phosphate complex	98
PCS Phosphates	Provided process specifications for the replacement of a gas-to-gas heat exchanger	98
Gulf Coast Recycling	Reviewed failures of a hot ductwork system and provided recommendations for revisions	98
Agrifos	Provided feasibility studies for increased sulfuric acid production for various production scenarios	98
Agrifos	Participated in a due diligence review of the purchase of major phosphate assets	98
CF Industries	Provided detailed engineering for the replacement and redesign of duct expansion joints and duct support systems in a double absorption acid plant	97
Albright & Wilson Troy	Provided a feasibility study to convert an existing single absorption plant to doubt absorption. Monsanto Enviro-Chem currently is adding double absorption based on our study	97
PCS Phosphates	Provided technical support to evaluate boiler reliability and efficiency problems	97
PCS Phosphates	Providing technical support to increase the production capacity and improve the energy recovery of two double absorption plants	97
Tampa Electric Company	Providing on-going technical support to the daily operation of the Company's only sulfuric acid plant	97
El Dorado Chemica	Provided technical support to restore a sulfuric acid plant to operate after a sulfur sublimation event	97
PCS Phosphates	Provided technical support to evaluate a mist eliminator problem	96
Monsanto Enviro-Chem	Start-up services for a sulfuric acid plant that processes hydrogen sulphide and ammonia gas produced by a integrated coal gasification power plant	96
Jacobs Engineering	Developed the scope for a major phosphate expansion project which included a new sulfuric acid plant, cogeneration facilities, and other auxiliary areas such as, sulfur melting and filtration, water treatment and cooling	96
Jacobs Engineering	Participated in a due diligence review of the purchase of major phosphate assets	96
PCS Phosphates	Provided technical support after a boiler failure event	96
General Chemical	Reviewed a spent acid regeneration plant operation and determined the cause of the plant bottleneck	96
El Dorado Chemical	Reviewed a sulfur burning sulfuric acid plant and determined the cause of an apparent acid cooler problem	96
Factory Mutual	Provided technical support to evaluate an insurance claim following an explosion. Provided a capital estimate for a damaged electrostatic mist precipitator	95
Jacobs Engineering	Participated in a due diligence review of the purchase of a major phosphate complex	95
General Chemical	Reviewed various options to increase the consumption rate of spent acid	95
Alon Processing	Provided an overview of the sulfuric acid industry	95
Freeport McMoRan	Provided technical support and expert witness testimony in a Federal lawsuit	95
General Chemical	Provided process flow diagram, Piping & Instrumentation drawings, instrumentation specifications for a drying tower replacement project	95
Jacobs Engineering	Technical assessment of a major phosphate complex for a potential buyer	95
Crawford & Company	Provided technical support to evaluate an insurance claim	95
General Chemical	Evaluated capital estimates prepared by a third party for the replacement of a major piece of equipment	95
IMC-Agrico	Technical assessment of equipment failures	94
General Chemical	Evaluated various modernizations schemes providing equipment sizing, balances, and utility usage	94
Industries Chimiques	Provided engineering design for a sulfur furnace modification	94
Arcadian Fertilizer	Provided technical support for the redesign of a failed oleum cooler	94
U.S. District Court	Expert witness to Federal District Court in lawsuits between a spent acid plant owner and plant contractor	94
Jacobs Engineering	Provided technical support for a sulfur dioxide generation facility	93
Cargill Fertilizer	Provided an assessment and recommendations for a newly purchased phosphate complex	93
Monsanto Enviro-Chem	Provided assistance monitoring the performance of six Heat Recovery Systems	93
Occidental Chemical	Consulting services to improve energy efficiency of two 1800 STPD Parson double absorption plants	93
Seminole Fertilizer	Start-up services for three Monsato HRS systems and turbogenerator	92
Raytheon Engineers & Constructors	Technical assessment of a major phosphate complex for a potential buyer	92
Occidental Chemical	Study to add Monsanto HRS technology to two Parsons plants with & without a gas turbine cycle	92
Otto H. York	Technical assessment of a mist eliminator performance problem	92
General Chemical	Feasibility study for a cogeneration project in a spent acid regeneration plant	92
General Chemical	Developed a modernization program for a spent acid regeneration plant	92
General Chemical	Technical assessment of a pipe failure	91
General Chemical	Developed capital estimate for energy recovery options	91
Energy & Regulatory Consultants	Feasibility study for a cogeneration project utilizing Monsanto HRS technology and a gas turbine	91
Seminol Fertilizer	Evaluation of a proposed sulfur mine and purification process	91
Florida Power & Light	Technical assessment of a proposed cogeneration project	91
Monsato Enviro-Chem	Technical assessment of a sulfur burner	91
General Chemical	Review of corporation sulfuric acid operations and provided a modernization program	90
Olin Chemical	Process design of tail-gas scrubber on spent acid regeneration plant	90
Chevron Chemical	Debottlenecked a Lurgi double absorption plant to increase production by 15%	90
Allied Signal	Process design of a new converter, superheater, and absorption tower	90
Olin Chemical	Feasibility study for liquid sulfur dioxide production	89
CF Industries	Process design of an ammonia tail-gas scrubber on a sulfur burning plant	89
Occidental Chemical	Debottleneck of a Parsons double absorption plant to increase production by over 10%	88

Spent Acid Regeneration Experience

Client	Plant Location	Description	Spent Acid	Services

Amoco Oil	Texas City, TX	Single Absorption	Alkylation	Provided process review and design for add-on tail-gas caustic scrubber
Coulton Chemical	Oregon, Ohio	Double Absorption	Alkylation	Reviewed the causes of a plant incident, evaluated temporary process changes to allow the plant to resume production, and assisted with adjusting the insurance claim.
Coulton Chemical	Oregon, Ohio	Doulbe Absorption	Alkylation	Provided consulting services for a product warranty civil action.
CMS	Riverton, WY	Single Absorption converted from sulfur burning	Alkylation	Provided on-going technical support to plant operator that did not have in-house engineering support.
General Chemical	Parsippany, NJ		Various	Provided process review for sulfuric acid operations at four production facilities.
General Chemical	Richmond, CA	Double Absorption	Alkylation	Reviewed a plant expansion project and identified areas of process concerns.
General Chemical	Richmond, CA	Double Absorption	Alkylation	Provided troubleshooting services to identify a heat exchanger that was fouled causing a production to shortfall.
General Chemical	Anacortes, WA	Double Absorption	Alkylation	Provided process options to solve an on-going corrosion problem in a large gas-to-gas heat exchanger.
General Chemical	Claymont, DE	Double Absorption	Alkylation	Reviewed plant operation and developed a long term plant modernization and debottlenecking project. Assisted in the development of a long range capital spending plan. Reviewed the purpose, design and reliability of all of the acid towers on-site and recommended approaches for consideration of operations. Developed a significant project to reduce fuel usage and debottleneck furnace-boiler area. Developed a project and appropriation request for a waste heat recovery project. Provided a study for plant consolidation and modernization.
Olin Chemical	Beaumont, TX	Single Absorption Ammonia Scrubber	Alkylation Organic sulfur compounds	Provided process review of regeneration furnace and gas scrubber which included overall plant evaluation. Provided process design for ammonia scrubber and provided start-up assistance.
PVS	Chicago, IL	Single Absorption	Alkylation Sulfonation	Provided process design for new oleum tower and pump tank design.
Star Enterprise	Delaware City, DE	Single Absorption Tail-gas to Wellman-Lord SO2 scrubbing system	Alkylation	Provided the process design from proposal stage through the complete project including operator training.
Tampa Electric Company	Bradley, FL	Double Absorption	Hydrogen sulfide & ammonia	Commissioned the plant that designed and constructed by Monsanto Enviro-Chem
Tampa Electric Company	Bradley, FL	Double Absorption	Hydrogen sulfide & ammonia	Provide on-going technical support the plant operation and capital projects.
U.S. Army	Baraboo, WS	Single Absorption Caustic Scrubber	Nitration	Provided U.S. Army COE with process related data requests involved with the design of a new plant.
U.S. Federal Court	Los Angeles, CA	Double Absorption	Alkylation Sulfonation	Provided expert testimony as a Court appointed expert in a multi-million dollar civil lawsuit

Clients & Projects