Floating chemical plants being built - C&EN Global Enterprise (ACS

Jun 17, 1974 - Sharing the $150 million contract are Brussels-based Coppee-Rust and IPI Constructors of Zug, Switzerland, which is responsible for ove...
0 downloads 11 Views 559KB Size
any world traveler knows," Dr. Dubos observes, "the fitness of design to local constraints accounts for much of the charm and interest—as well as comfort—of regional styles." The 100-odd delegates were a mixed bag of scientists, bureaucrats, educators, businessmen, students, and environmentalists (including one who boycotted the foamed polystyrene cups furnished at coffee breaks "because they're made out of petrochemicals"). So when the discussion groups repaired to their meeting rooms, the discussions were sometimes quite spirited and the opinions less than unanimous. Nevertheless, the delegates did find some things to agree on, and these went into the final report. For example, as noted, the delegates questioned whether Project Independence would be desirable, even if it were to be successful. "The energy problem is clearly international in scope," their report reads. "The nations of the world are inescapably interdependent because of uneven distribution of natural and human resources." Thus, "international balances of trade and logic of specialization and optimal utilization of resources (for example, U.S. importing oil and exporting food) should not be disturbed without careful assessment of national and international impact." As to the Government's "aggravation" of energy and environmental problems, the delegates said that government activities had "involved too many divergent agencies, characteristically been poorly coordinated, and included economic measures which are often disfunctional." And they called "for convening of a national conference to lead to establishment of a sound and coordinated energy policy which is ecologically sound."

Floating chemical plants being built Within the next 18 months or so, two unusual vessels will slip away from their moorings in western Europe and head for their destination half way around the world in Indonesia. Shortly after dropping anchor in the Strait of Makassar, separating the islands of Borneo and Celebes, chemical engineers expect to bring into operation the world's first floating chemical plants. One of the ships will produce ammonia at a designed daily rate of 1500 metric tons. The other will be capable of making 1700 metric tons daily of urea (C&EN, April 1, page 13). Sharing the $150 million contract are Brussels-based Coppee-Rust and IPI Constructors of Zug, Switzerland, which is responsible for overall management of the project. The Indonesian state-owned oil company, Pertamina, will use gas associated with the offshore oil wells near

Working in the Microliter Range? Buchler Micropipet for fixed or variable volume.

pat P6nd

To suit your individual requirements, you can now obtain the Buchler Micropipet in a variable volume model from 2 to 10 u l . . . or in fixed volumes of 2,3,4,5, 6, 7,8,9,10, 20 and 50 ul. • Suitable for titration, blood cell counting, flame photometry or RlA, • Flow-thru diluent wash eliminates sample carryover and delivery errors. • Reproducibility to a ±0.3% coefficient of variation. Individual pipets available in variable or fixed volume. Set of 3 fixed volumes specified by you, including rack and case, package-priced at only $295.

SEARLE Buchler Instruments Division of Searle Analytic Inc. 1327 Sixteenth Street Fort Lee, New Jersey 07024 CIRCLE 15 ON READER SERVICE CARD June 17, 1974 C&EN

23

Du Font instruments Accurately analyze the stomach contents of drug overdose victims in less than five minutes. Because the Du Pont 21-490 Mass Spectrometer System can be operated in the chemical ionization mode, it can quickly tell the doctor what drugs have been taken when the unconscious victim can't. Using standard medical procedures, it is possible to extract the stomach contents with an organic sol­ vent. The evaporated extract can then be Φ © placed into the direct sample introduc­ tion probe of the mass spectrometer. A typical analysis spectrum is shown. Chemical ionization provides low fragmentation spectra, large peaks and excellent separation of a complex mix­ ture, which makes it relatively easy to identify 1 ) triamterene (an anti-hyperten­ sive, M.W. 253), 2) acetylcarbromal (a sedative, M.W. 278) and 3) benztropine l|llll|llll|llll|lil |l|llll|llll|lll[|llll|ll Τψϊ (an anti-depressant, M.W. 307), as in the 250 300 example at left. The spectrum produced by the CI/MS method can be interpreted quickly and unambiguously, and may often help to save the life of the victim involved. For more information, circle 3 0 on Reader Service Card.

Solve the case of the poisoned catalyst. A manufacturer who was using a palladium-on-carbon catalyst for the reduction of a nitrogen-containing organic compound noted that, after extended use, the catalyst lost its activity. Yet the palladium content remained constant. With a Du Pont 650 Electron Spectrometer for Chemical Analysis (ESCA), he analyzed samples of fresh, used-but-active, and spent catalyst and found that as the palladium peak decreased, the nitrogen peak grew. This proved that loss of activity was due not to sulfur or halogen poisoning, but to formation of a nitrogen-containing by-product of the re­ action which coated the surface of the catalyst, blocking the active palla­ dium sites. The Du Pont 650 ESCA has proven its unique capacity for sur­ face analysis in the heterogeneous catalyst field and for many other sur­ face characterization problems. For more information, circle 31 on Reader Service Card.

Du Pont Instruments—α growing line of scientific, process and biomedical instrumentation. Du Pont Company, Wilmington, DE 19898.

f p l ) instruments R

24

C&EN June 17, 1974

E G U . S . P A T OFF

Santan, on the east coast of Kaliman­ tan, to make fertilizers for the coun­ try's rice-growing industry. So urgent is the need for the fertilizers that the Indonesians can't wait out the four years or so that it would take to build comparable ammonia and urea plants on land. By electing to have the units assembled in Europe, construction time will be halved. Ammonia will be produced by crack­ ing the gas and interacting the result­ ing hydrogen with nitrogen from air using the synthesis process developed by Paris' Le Grande Paroisse, licensed by IPI Constructors. The facility is being built into a 65,000-ton ship. Some of the product will be shipped to the mainland for conversion to ammo­ nia-based fertilizers. But the bulk will be used as feedstock for the urea plant in a converted 30,000-ton ore carrier. Coppee-Rust is licensee of the urea synthesis technology developed by DSM in Heerlan, the Netherlands. The new plant will be the biggest anywhere involving DSM's nonstripping process. Apart from the unusual engineering and construction problems entailed in building chemical plants in the rela­ tively confined space of the ships, a va­ riety of other technical difficulties must be overcome. For instance, wa­ tertight connections will be needed where the gas in-take hose enters the ammonia plant ship. Complicating this aspect of the engineering further is the fact that the ship will be undergoing continual movement with the normal flow of the ocean current. Also, the temperature in the region, which is on the equator, usually is about 90° F. during the day and rarely drops much below 70° F. at night; the relative humidity can be as high as 100%. Consequently, the chemical plants will have to be air conditioned, a fact that will present ventilation problems. Erik Bunge, managing director of DSM's engineering subsidiary, Stamicarbon, believes that interest in float­ ing plants for making fertilizers and other chemicals could become wide­ spread. He notes that some Japanese companies are considering the idea se­ riously, mainly because of the over­ crowded conditions in Japan and the serious air pollution problem there. So, too, are engineers in the People's Re­ public of China, he says. Floating chemical plants have a special advan­ tage when they are keyed in with off­ shore gas wells, he points out. The ships may be moved from one location to another as the wells are used up. IPI Contractors says that the project has already generated "a very large number of inquiries" from others who are interested in possibly going a simi­ lar route to putting in chemical plants. Apart from obviating the need to pipe feedstock gas to shore, ship-bearing production units would be easier to build and faster to bring on stream, particularly in remote regions.