硫化氢

The testing results suggests that the increase of H2S concentration will raise the brittleness coefficient, leading to the decrease of corrosion resistance for either X70 base metals or welding joints. Meanwhile, the results reveals that effect of H2S concentration on X70 base metals and welding joints is different: the influence of H2S concentration on welding joints'SSCC is bigger than on base metals'SSCC.

揭示了随着硫化氢浓度的增加，国产X70管线钢及其焊接接头的脆性系数增加，抗腐蚀能力减弱；硫化氢浓度对国产X70管线钢母材和焊缝的SSCC性能有着不同程度的影响：在相同的试验条件下，焊缝的脆性系数显著大于母材的脆性系数，即焊缝较母材的SSCC敏感性大。

As an important part of gas resource and an important source of sulfur, the sulfurous gas has a great amount of global resources and distributes in a wide range, mainly in large oil and gas fields of North America, Europe, the former Soviet Union, the Middle East, Asia and other regions.

含硫化氢天然气是天然气资源的重要组成部分，也是硫磺的重要来源之一，其全球资源量巨大，分布范围广泛。高含硫化氢天然气主要分布在北美洲、欧洲、前苏联、中东、亚洲等地区的大型油气田中。

In combination with the situation of processing high sulphureous crude oil in recent years, units and equipments occurred easily that corrosion in the process of production were analyzed. The comprehensive measures adopted from four fields of controlling hydrogen su...

结合近年加工高硫原油的情况，分析了炼油生产中易发生该种腐蚀的装置和设备，并提出了从控制介质中硫化氢浓度、设备材料的质量、设备制造安装工艺以及使用管理等四个方面综合采取措施，预防湿硫化氢应力腐蚀的产生。

To reduce the poisonous compounds in the breeding ponds,five species of bacteria including denitrobacteria ,photosynthetic bacteria,thiobacteria and bioflocculation bacteria were screened from the breeding water.

针对养殖水体中因氨态氮、硫化氢和小分子有机酸富营养化引起的污染问题，分离筛选出硝化细菌、反硝化细菌、光合细菌、硫化细菌和生物絮凝菌等具有不同生理功能的污染物治理菌株，经优化配伍制备出性能优良的复合功能菌，结果表明：硝化细菌对氨态氮的去除率达97.8%，亚硝态氮的去除率达95.7%，反硝化细菌对硝态氮的去除率为96.4%，光合细菌和硫化细菌对硫化氢的去除率为55%，微生物絮凝菌的絮凝效率为83%；复合功能菌对CODCr、NH4+-N，总氮、硫化物的去除率分别可达94.3%，89.6%，88.7%和71.3%。

By investigating the performances and chemical stabilities of three anode catalysts, namely, Pt, MoS2 and composite metal sulfide (MoS2/NiS) in the condition of electrochemical oxidation of hydrogen sulfide, it is indicated that MoS2 and MoS2+NiS exhibit better catalytic activity than Pt, and that, at a temperature more than 450℃, MoS2 itself sublimes, while the composite catalyst MoS2/NiS containing both Mo and transition metal Ni remains stable.

考察了3种阳极催化剂Pt、MoS2及复合金属硫化物(MoS2/NiS)电化学氧化硫化氢的性能和在硫化氢环境下的化学稳定性，发现MoS2和复合MoS2/NiS催化剂比Pt具有更好的催化活性，但MoS2在温度超过450℃时会升华，而含有Mo和过渡金属Ni的复合MoS2/NiS催化剂在操作条件下很稳定。

To analyze the cases of acute sulfureted hydrogen poisoning during the period of 1992 to 2004 and explore the relevant preventive countermeasures.

目的 对上海市1992~2004年急性硫化氢中毒事故进行分析，探讨急性硫化氢中毒事故的防治对策。

In order to seek gas compressor, cooler and other equipments serious ash deposition reason in the fuel gas generating equipment system, data analysis discovers that system deposition mostly come from sulfureted hydrogen in coke oven gas by gas ash content and component measurement.

为寻求燃气发电系统中煤气压缩机，冷却器等设备积灰严重的原因，由燃气的灰含量及其成分的测定数据分析发现，系统的积灰主要是来自焦炉煤气中的硫化氢，因此控制煤气中的硫化氢含量是关键。

Methods Analysis was made on the year distribution, causes for poisoning and the variety of workplaces of the acute sulfureted hydrogen poisonings according to the labor hygienic questionnaires for acute occupational poisonings.

按照卫生部统一的《急性职业中毒现场劳动卫生学调查表》对上海市在此期间发生的硫化氢中毒的年度分布、中毒原因和不同作业场所的硫化氢中毒情况等进行分析。

ConclusionThe situation of acute sulfureted hydrogen poisoning is quite serious in Shanghai; great importance should be attached to the prevention work.

上海市硫化氢中毒危害形势依然严峻，严重地威胁了劳动者生命和健康，应大力加强急性硫化氢中毒的防治，建立&政府监管、行业管理，用人单位自律、劳动者自我保护&的职业病防治机制。

Odor pollutants can be controlled in the early, middle and late raising-stage in a scaled pig farm. Tests and experiments showed that feed additives contained deodorant microorganisms and other chemical ingredients could reduce ammonia and sulfuretted hydrogen efflux 38.6% and 20.6% in pigsty, and 14.7% and 20.4% in wastewater adjusting tank respectively, meanwhile odor concentration was remarkable reduced 43.8%.

集约化猪场恶臭的生物处理可以在饲养的营养技术、饲养过程和粪便处理阶段分别处理，试验表明使用含有微生物制剂等成分的除臭剂为饲料添加剂，可使猪舍氨气和硫化氢分别降低38.6%和20.6%，调节池中氨气和硫化氢分别降低14.7%和20.4%，臭气浓度降低43.8%。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。