Table of applications

 

Petrolium / Petrochemical industry

Application

Substance

Sensi-tape

Mode

Comments

Gasoline

Sulfur

H2S

R/O

No regulatory requirements; however, excess sulfur causes corrosion and odors

Feedstocks

sulfur

H2S

R/O

Early detection of sulfur contamination helps prevent subsequent processing problems.

Nitrogen

NH3

R

Nitrogen compound can poison some petrochemical and chemical processing catalysts

Chlorine

HCl

R

Feedstocks transported by ship may be contaminated by sea eater. Early detection helps prevent

subsequent processing problems.

Natural gas

Sulfur

H2S

R/O

Mercaptans added as odorants to natural gas oxidize to sulfides and disulfides. Total sulfur content is

about 2 ppm, spread over six or more different sulfur compounds.

Propane / Propylene

Sulfur

H2S

R/O

COS

Distillation or reforming units

Sulfur

H2S

R/O

Sulfur contamination can cause corrosion, catalysts poisoning, and other undesirable, effects.

Nitrogen

NH3

R

Nitrogen contamination can cause corrosion, catalyts poisoning, and other undesirable effects.

Halogens

HCl

R

Halogenated compounds can cause corrosion, catalyts poisoning, and other undesirable effects.

Plastics packaging

Halogens

HCl

R

Assess quality of ethylene and methane feedstock

Flare gas

Nitrogen

NH3

R

Gases going to "flare" need to be monitored for oxides of nitrogen

Cold boxes

Nitrogen

NH3

R

Ethylene and propylene produce nitrogen oxides which can form explosive compounds in cold boxes.

Waste oil

Chlorine

HCl

R

Waste oils are burned as boiler fuel; government regulations limit the total chlorine content to these

oils. Intermediates facilities collectors, processors, blenders, and refiners must perform analysis to

certify chlorine content limits are met. Includes transformer, crankcase, lubricating, and blended fuel oils.

 

Environmental and industrial hygiene

Application

Substance

Sensi-tape

Mode

Comments

Halogens

HCl

R

Halogenated compounds used as degreasers, dry cleaning solvents, etc.

Cooling / boiler water

Phosphorous

Hydrides

R

Phosphates used to control scale and corrosion

Drinking water

Nitrogen

NH3

R

Excessive nitrate concentrations (due to fertilizer runoff, inproper wastewater treatment, etc.) can result in

infant methemoglobinemia ("blue" babies) and / or algal blooms. Maximum allowable limit in drinking water is

10 ppm.

waste water / effluents

Nitrogen

NH3

R

National Pollution Discharge Elimination System (NPDES) requires wastewater effluents to be monitored for

total nitrogen (ammonia, organic nitrogen, nitrite, nitrates, etc.)

Phosphorous

Hydrides

R

Phosphate runoff increases unwanted plant growth in rivers, lakes, etc.

Halogens

HCl

R

Included in the EPA list of priority pollutants are a number of organochlorine pesticides and polychlorinated

bi-phenyls which must be monitored in order to comply with NPDES regulations.

 

Agriculture Industry

Application

Substance

Sensi-tape

Mode

Comments

Wine

Sulfur

H2S

R/O

Registration authorities require quantification of trace levels of pesticides.

Chlorine

HCl

R

Pesticide residue.

Lemon juice

Sulfur

H2S

R/O

Registration authorities require quantification of trace levels of pesticides.

Lettuce

Phosphorus

Hydrides

R

Phosphorous compounds used in pesticides and fertilizers (Dimethoate, parathion).

Celery

Phosphorus

Hydrides

R

Phosphorous compounds used in pesticides and fertilizers ( Parathion, diazion).

Pood products

Halogens

HCl

R

Halogenated compounds used in pesticides and herbicides; also used to ripen fruits and in animal feed supplements.

Residue may remain after processing.